Activity 17 b gas exchange
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This document summarizes a science lab activity about gas exchange. The activity involves using an indicator called BTB to test for the presence of carbon dioxide in exhaled breath. In part A, students test samples of air, sodium hydroxide solution, and their own exhaled breath to see how the BTB indicator changes color in response to carbon dioxide. In part B, students measure the number of drops of BTB needed to detect carbon dioxide levels in the exhaled breath of their classmates. The document includes the procedure, data tables to record results, analysis questions, and a reflection question about how respiratory diseases may impact breathing ability.
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Science
Name:
Date:
Instructors Name:
Assignment:油
Lab油
Report
Title
:油
Sources of CO
2
油Emissions
Instructions:油
You will need to write a 1-page lab report using the scientific method centered on the known phenomena of CO
2
油emissions, related to the following question:
¬
Would you expect to see an increase or decrease in CO
2
油emission in the data over the past 40 years? Why?
When your lab report is complete, post it in Submitted Assignment files.
Part I:油
In the Web site link given in the assignment description, you will see an interactive map of the world titled GMD Measurement Locations. 油You can zoom in and out and move the map around within the window. In the map, choose 5 sites that are labeled with a star, which will have CO
2
油concentrations. 油Follow the steps below to fill in the data table:
1.油
Click on a starred location. 油(One site will not have CO
2
油concentrations.)
2.油
Once the starred location opens, on the right side of the screen, click on the pictured graph Examples of Data for CO
2
.
3.油
Once the graph opens, make a note of the CO
2
油concentrations from previous years to present day. 油Fill in the table below.
4.油
Repeat steps 13 for all other locations.
5.油
Use these results in your lab report to help you assess CO
2
油concentration trends from 1990 to 2005.
Location Code
Name of City/Country
CO
2油
Emissions in 1990
CO
2油
Emissions in 2005
Part II:油
Write a 1-page lab report using the following scientific method sections:油
¬
Purpose
o油
State the purpose of the lab.油
¬
Introduction
o油
This is an investigation of what is currently known about the question being asked. Use background information from credible references to write a short summary about concepts in the lab. List and cite references in APA style.油
¬
Hypothesis/Predicted Outcome
o油
A油
hypothesis
油is an educated guess. Based on what you have learned and written about in the Introduction, state what you expect to be the results of the lab procedures.油
¬
Methods
o油
Summarize the procedures that you used in the lab. The Methods section should also state clearly how data (numbers) were collected during the lab; this will be reported in the Results/Outcome section.油
¬
Results/Outcome
o油
Provide here any results or data that were generated while doing the lab procedure.油
¬
Discussion/Analysis
o油
In this section, state clearly whether you obtained the expected results, and if the outcome was as expected.
o油
Note: You can use the lab data to help you discuss the results and what you learned.油
Provide references in APA format. This includes a reference list and in-text citations for references used in the Introduction section.
In this lab, you will gather data about CO
2
油emissions using the National Oceanic and Atmospheric Administration Web site (Earth System Research Laboratory, n.d.) to help you write up a scientific report centered around known phenomena of CO
2
油emissions, related to the following question:
Would you expe.Environmental scienceScienceNameDateInstructors Name.docx
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Name:
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Report
Title
:油
Sources of CO
2
油Emissions
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You will need to write a 1-page lab report using the scientific method centered on the known phenomena of CO
2
油emissions, related to the following question:
¬
Would you expect to see an increase or decrease in CO
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When your lab report is complete, post it in Submitted Assignment files.
Part I:油
In the Web site link given in the assignment description, you will see an interactive map of the world titled GMD Measurement Locations. 油You can zoom in and out and move the map around within the window. In the map, choose 5 sites that are labeled with a star, which will have CO
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2.油
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.
3.油
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4.油
Repeat steps 13 for all other locations.
5.油
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2
油concentration trends from 1990 to 2005.
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Name of City/Country
CO
2油
Emissions in 1990
CO
2油
Emissions in 2005
Part II:油
Write a 1-page lab report using the following scientific method sections:油
¬
Purpose
o油
State the purpose of the lab.油
¬
Introduction
o油
This is an investigation of what is currently known about the question being asked. Use background information from credible references to write a short summary about concepts in the lab. List and cite references in APA style.油
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o油
A油
hypothesis
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¬
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o油
Summarize the procedures that you used in the lab. The Methods section should also state clearly how data (numbers) were collected during the lab; this will be reported in the Results/Outcome section.油
¬
Results/Outcome
o油
Provide here any results or data that were generated while doing the lab procedure.油
¬
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o油
In this section, state clearly whether you obtained the expected results, and if the outcome was as expected.
o油
Note: You can use the lab data to help you discuss the results and what you learned.油
Provide references in APA format. This includes a reference list and in-text citations for references used in the Introduction section.
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Name:
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Instructors Name:
Assignment:油
Lab油
Report
Title
:油
Sources of CO
2
油Emissions
Instructions:油
You will need to write a 1-page lab report using the scientific method centered on the known phenomena of CO
2
油emissions, related to the following question:
¬
Would you expect to see an increase or decrease in CO
2
油emission in the data over the past 40 years? Why?
When your lab report is complete, post it in Submitted Assignment files.
Part I:油
In the Web site link given in the assignment description, you will see an interactive map of the world titled GMD Measurement Locations. 油You can zoom in and out and move the map around within the window. In the map, choose 5 sites that are labeled with a star, which will have CO
2
油concentrations. 油Follow the steps below to fill in the data table:
1.油
Click on a starred location. 油(One site will not have CO
2
油concentrations.)
2.油
Once the starred location opens, on the right side of the screen, click on the pictured graph Examples of Data for CO
2
.
3.油
Once the graph opens, make a note of the CO
2
油concentrations from previous years to present day. 油Fill in the table below.
4.油
Repeat steps 13 for all other locations.
5.油
Use these results in your lab report to help you assess CO
2
油concentration trends from 1990 to 2005.
Location Code
Name of City/Country
CO
2油
Emissions in 1990
CO
2油
Emissions in 2005
Part II:油
Write a 1-page lab report using the following scientific method sections:油
¬
Purpose
o油
State the purpose of the lab.油
¬
Introduction
o油
This is an investigation of what is currently known about the question being asked. Use background information from credible references to write a short summary about concepts in the lab. List and cite references in APA style.油
¬
Hypothesis/Predicted Outcome
o油
A油
hypothesis
油is an educated guess. Based on what you have learned and written about in the Introduction, state what you expect to be the results of the lab procedures.油
¬
Methods
o油
Summarize the procedures that you used in the lab. The Methods section should also state clearly how data (numbers) were collected during the lab; this will be reported in the Results/Outcome section.油
¬
Results/Outcome
o油
Provide here any results or data that were generated while doing the lab procedure.油
¬
Discussion/Analysis
o油
In this section, state clearly whether you obtained the expected results, and if the outcome was as expected.
o油
Note: You can use the lab data to help you discuss the results and what you learned.油
Provide references in APA format. This includes a reference list and in-text citations for references used in the Introduction section.
In this lab, you will gather data about CO
2
油emissions using the National Oceanic and Atmospheric Administration Web site (Earth System Research Laboratory, n.d.) to help you write up a scientific report centered around known phenomena of CO
2
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Name:
Date:
Instructors Name:
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Lab油
Report
Title
:油
Sources of CO
2
油Emissions
Instructions:油
You will need to write a 1-page lab report using the scientific method centered on the known phenomena of CO
2
油emissions, related to the following question:
¬
Would you expect to see an increase or decrease in CO
2
油emission in the data over the past 40 years? Why?
When your lab report is complete, post it in Submitted Assignment files.
Part I:油
In the Web site link given in the assignment description, you will see an interactive map of the world titled GMD Measurement Locations. 油You can zoom in and out and move the map around within the window. In the map, choose 5 sites that are labeled with a star, which will have CO
2
油concentrations. 油Follow the steps below to fill in the data table:
1.油
Click on a starred location. 油(One site will not have CO
2
油concentrations.)
2.油
Once the starred location opens, on the right side of the screen, click on the pictured graph Examples of Data for CO
2
.
3.油
Once the graph opens, make a note of the CO
2
油concentrations from previous years to present day. 油Fill in the table below.
4.油
Repeat steps 13 for all other locations.
5.油
Use these results in your lab report to help you assess CO
2
油concentration trends from 1990 to 2005.
Location Code
Name of City/Country
CO
2油
Emissions in 1990
CO
2油
Emissions in 2005
Part II:油
Write a 1-page lab report using the following scientific method sections:油
¬
Purpose
o油
State the purpose of the lab.油
¬
Introduction
o油
This is an investigation of what is currently known about the question being asked. Use background information from credible references to write a short summary about concepts in the lab. List and cite references in APA style.油
¬
Hypothesis/Predicted Outcome
o油
A油
hypothesis
油is an educated guess. Based on what you have learned and written about in the Introduction, state what you expect to be the results of the lab procedures.油
¬
Methods
o油
Summarize the procedures that you used in the lab. The Methods section should also state clearly how data (numbers) were collected during the lab; this will be reported in the Results/Outcome section.油
¬
Results/Outcome
o油
Provide here any results or data that were generated while doing the lab procedure.油
¬
Discussion/Analysis
o油
In this section, state clearly whether you obtained the expected results, and if the outcome was as expected.
o油
Note: You can use the lab data to help you discuss the results and what you learned.油
Provide references in APA format. This includes a reference list and in-text citations for references used in the Introduction section.
In this lab, you will gather data about CO
2
油emissions using the National Oceanic and Atmospheric Administration Web site (Earth System Research Laboratory, n.d.) to help you write up a scientific report centered around known phenomena of CO
2
油emissions, related to the following que.0620 s09 qp_1
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油
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- CIE now uses two similar variant question papers for some assessments instead of just one. This provides centers with more past exam material.
- The content and question types remain the same between variants. For each country, only one variant is intended to be used.
- The document contains both variants of the question paper, mark scheme, and principal examiner's report to give all centers access to the material.
- Any questions about the changes should be directed to CIE's customer service team. The document titles should indicate which variant is which for easy reference.Respiratory system questions
Respiratory system questionsIrene Santos Fraile
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The document contains questions about the respiratory system and respiration. It asks about the differences between breathing through the nose versus the mouth, the muscles involved in inspiration and expiration, why blood in the lungs contains high CO2, and how oxygen levels change in the blood after it passes through active versus resting muscles. It also includes questions about lung volumes and air flow, the functions of different organ systems, labeling anatomy and processes, and identifying true and false statements about respiratory system functions and structures.Grade 9 biology paper 1 term 1 2013
Grade 9 biology paper 1 term 1 2013Jithesh Parambath
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This document contains a biology exam for 9th grade students with 40 multiple choice questions covering various topics like cells, transport in plants, human anatomy and physiology, enzymes, respiration, excretion, homeostasis and digestion. The exam is divided into sections with diagrams, graphs, tables and questions. It provides instructions for students on completing the multiple choice answer sheet within the 1 hour time limit.More from ddegennaro (14)
Bacteria food borne psa (1)
Bacteria food borne psa (1)ddegennaro
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This document provides instructions for a student project on bacteria and food safety. Students are asked to research a specific foodborne illness caused by bacteria by addressing several key points: (1) Identify the type of bacteria that causes the disease; (2) Describe the symptoms of the disease; and (3) Discuss methods of preventing bacterial growth in food, such as through food preservation techniques like dehydration, refrigeration, or cooking. Students are also asked to describe how the disease is medically treated and the conditions created by food preservation methods that kill bacteria. The goal is for students to create a public service announcement to educate others about the disease and food safety.Activity 38 c microbes, plants, and you
Activity 38 c microbes, plants, and youddegennaro
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Scientists have observed cells in every living organism. This activity examines cheek cells from the inside of the mouth, plant cells from green leaves, and amoeba cells under a microscope. The cells are observed and their structures, such as the cell membrane, nucleus, cytoplasm and different organelles, are compared. Evidence is found that human bodies and plant cells contain various internal structures besides the nucleus.Activity 36 c looking for signs of micro life
Activity 36 c looking for signs of micro lifeddegennaro
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1) The document describes an activity where students look at microbes under a microscope and record their observations. They examine things like pond water to find microbes and look at their characteristics.
2) Common microbes found include bacteria, which have a cell wall, cell membrane, cytoplasm, ribosomes, and genetic material in the cytoplasm. They can be rod-shaped, spherical, or spiral.
3) Microbes are found almost everywhere on Earth and play important ecological roles as decomposers, producers, and parts of the food web.Activity 42 c a closer look
Activity 42 c a closer lookddegennaro
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This document is a lesson plan on cell biology that focuses on a closer look at cells. It introduces the key discoveries that cells are the basic unit of life and most organisms are made of many cells. The purpose is to learn more about cell structures and their functions. Students will read about cells, summarize the challenge question, and complete activities including a double bubble map, cell diagrams, and reflection on why membranes are important to cells.Activity 35 c a license to learn; parts a and b
Activity 35 c a license to learn; parts a and bddegennaro
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The document discusses a cell biology activity that involves using a microscope to view samples and learn about different parts of the microscope. Students will be viewing samples under the microscope and identifying different parts of the microscope based on a diagram. The activity teaches about how microscopes have helped scientific discoveries such as identifying the cause of bubonic plague.Race ca r rubric
Race ca r rubricddegennaro
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This document is a rubric for grading argumentative essays. It evaluates students on identifying an issue, stating a claim, citing evidence to support the claim, explaining how the evidence supports the claim, presenting a counterargument, and rebutting the counterargument. Stronger essays clearly identify the issue, state the claim, cite and explain two pieces of evidence, present a counterargument, and rebut it, while weaker essays are missing one or more of these components.17 b gas exchange
17 b gas exchangeddegennaro
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This document outlines an activity to investigate gas exchange through human respiration. Students are asked to complete anticipation guides and data tables to measure the carbon dioxide levels in exhaled breath using an indicator solution. They observe that exhaled breath turns the solution color, indicating the presence of carbon dioxide. Students then measure the amount of carbon dioxide in samples from different classmates. Finally, they analyze the experiment results and compare the compositions of inhaled and exhaled air.Activity 15 b digestion an absorbing tale ccss science&literacy
Activity 15 b digestion an absorbing tale ccss science&literacyddegennaro
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1. The document discusses the process of digestion, including both mechanical and chemical breakdown of food as it passes through the digestive system.
2. It explains that the digestive system is responsible for breaking down everything consumed, such as food, drink, and medicine, and describes some of the major organs involved like the esophagus, stomach, and intestines.
3. As food travels through the body, the document aims to explain how the digestive system works through absorption of nutrients and elimination of waste.Activity 14 b breakdown
Activity 14 b breakdownddegennaro
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The document describes an activity about the human digestive system. Students will conduct an experiment to test how the size of food pieces affects the speed of chemical breakdown during digestion. They will give some students whole candy pieces and others broken up pieces, then time how long it takes each student to finish their candy. This will model how chewing food into smaller pieces increases the surface area and allows for faster chemical breakdown in the digestive system.Activity 12 b what's happening inside
Activity 12 b what's happening insideddegennaro
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The document describes an activity to teach students about the human body's organ systems. Students will:
1) Brainstorm what they know about organ systems and write questions. They will then classify organ cards into different systems like digestive and circulatory.
2) Draw an outline of the human body and label organs and their functions. They will ask each other questions about the diagrams.
3) Use clay to model organs and discuss if the sizes are accurate. They will review how organs relate to actual body structures.Activity 1 saving fred
Activity 1 saving fredddegennaro
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This document provides instructions for an activity that teaches problem solving through having students save a character named Fred using the scientific method. Students will work through various steps: forming a hypothesis to save Fred, following a procedure to test their hypothesis, recording their results, and analyzing their methods and results. The goal is to introduce students to how scientists systematically solve problems by forming and testing hypotheses in a structured process.Activity 2 a the pellagra story
Activity 2 a the pellagra storyddegennaro
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1) Dr. Goldberger studied the disease pellagra by experimenting on prisoners and orphans. He fed some prisoners and orphans diets lacking in nutrients to see if they developed pellagra.
2) Through this experiment, Dr. Goldberger found evidence that pellagra was caused by nutritional deficiencies rather than germs.
3) However, others did not believe Dr. Goldberger's conclusion because they questioned whether it was ethical to experiment on humans, and thought the evidence from prisoners and orphans was not scientifically valid.Recently uploaded (20)
Telescope equatorial mount polar alignment quick reference guide
Telescope equatorial mount polar alignment quick reference guidebartf25
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Telescope equatorial mount polar alignment quick reference guide. Helps with accurate alignment and improved guiding for your telescope. Provides a step-by-step process but in a summarized format so that the quick reference guide can be reviewed and the steps repeated while you are out under the stars with clear skies preparing for a night of astrophotography imaging or visual observing.2025-03-03-Data-related-Ethics Issues in Technologies for Professional Learni...
2025-03-03-Data-related-Ethics Issues in Technologies for Professional Learni...Graz University of Technology & Know-Center
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How could modern LA research address data-related ethics issues in informal and situated professional learning? I will identify in this talk three relevant insights based on field studies around workplace LA interventions: Firstly, in informal and situated learning, data isnt just about the learners. Secondly, the affordances of manual and automatic data tracking for learning are very different, with manual tracking allowing a high degree of learner control over data. Thirdly, learning is not necessarily a shared goal in workplaces. These can be translated into seeing a potential for systems endowed with sufficient natural-language-processing capability (now seemingly at our fingertips with LLMs), and socio-technical design and scenario-based data collection analysis as design and research methods.Drugs and Their Effects | Cambridge IGCSE Biology
Drugs and Their Effects | Cambridge IGCSE BiologyBlessing Ndazie
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This IGCSE Biology presentation explores drugs and their effects on the human body, covering medicinal drugs, recreational drugs, and drug abuse. Learn about the impact of stimulants, depressants, painkillers, hallucinogens, and performance-enhancing drugs, as well as the dangers of alcohol, nicotine, and illegal substances. Ideal for Cambridge IGCSE students looking to understand this important topic for exams!Science project class 10 Covid-19 Tuberculosis
Science project class 10 Covid-19 TuberculosisVEENAKSHI PATHAK
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Coronaviruses are a large family of
Viruses that are common
Throughout the world and can cause
Respiratory illness in people and
Animals.
The Arctic through the lens of data visualization
The Arctic through the lens of data visualizationZachary Labe
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26 February 2025
Rider University, Global Biogeochemistry Class Visit (Presentation): Arctic climate change through the lens of data visualization, NOAA GFDL, Princeton, USA.
The Solar Systems passage through the Radcliffe wave during the middle Miocene
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As the Solar System orbits the Milky Way, it encounters various Galactic environments, including dense regions of the
interstellar medium (ISM). These encounters can compress the heliosphere, exposing parts of the Solar System to the ISM, while also
increasing the influx of interstellar dust into the Solar System and Earths atmosphere. The discovery of new Galactic structures, such
as the Radcliffe wave, raises the question of whether the Sun has encountered any of them.
Aims. The present study investigates the potential passage of the Solar System through the Radcliffe wave gas structure over the past
30 million years (Myr).
Methods. We used a sample of 56 high-quality, young (30 Myr) open clusters associated with a region of interest of the Radcliffe
wave to trace its motion back and investigate a potential crossing with the Solar Systems past orbit.
Results. We find that the Solar Systems trajectory intersected the Radcliffe wave in the Orion region. We have constrained the timing
of this event to between 18.2 and 11.5 Myr ago, with the closest approach occurring between 14.8 and 12.4 Myr ago. Notably, this
period coincides with the Middle Miocene climate transition on Earth, providing an interdisciplinary link with paleoclimatology. The
potential impact of the crossing of the Radcliffe wave on the climate on Earth is estimated. This crossing could also lead to anomalies
in radionuclide abundances, which is an important research topic in the field of geology and nuclear astrophysics.Respiration & Gas Exchange | Cambridge IGCSE Biology
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This IGCSE Biology presentation explains respiration and gas exchange, covering the differences between aerobic and anaerobic respiration, the structure of the respiratory system, gas exchange in the lungs, and the role of diffusion. Learn about the effects of exercise on breathing, how smoking affects the lungs, and how respiration provides energy for cells. A perfect study resource for Cambridge IGCSE students preparing for exams!Biowaste Management and Its Utilization in Crop Production.pptx
Biowaste Management and Its Utilization in Crop Production.pptxVivek Bhagat
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Bio-waste management involves the collection, treatment, and recycling of organic waste to reduce environmental impact. Proper utilization in crop production includes composting, vermiculture, and biofertilizers, enhancing soil fertility and sustainability. This eco-friendly approach minimizes waste, improves crop yield, and promotes sustainable agriculture.The Sense Organs: Structure and Function of the Eye and Skin | IGCSE Biology
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This detailed presentation covers the structure and function of the sense organs, focusing on the eye and skin as part of the Cambridge IGCSE Biology syllabus. Learn about the anatomy of the eye, how vision works, adaptations for focusing, and common eye defects. Explore the role of the skin in temperature regulation, protection, and sensory reception. Perfect for students preparing for exams!Propagation of electromagnetic waves in free space.pptx
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The material discusses about electromagnetic wave propagation in free space and discusses about orientation of E and H vectorsPROTEIN DEGRADATION via ubiquitous pathaway
PROTEIN DEGRADATION via ubiquitous pathawayKaviya Priya A
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Protein degradation via ubiquitous pathway In general science, a ubiquitous pathway refers to a biochemical or metabolic pathway that is:
1. *Widely present*: Found in many different organisms, tissues, or cells.
2. *Conserved*: Remains relatively unchanged across different species or contexts.
Examples of ubiquitous pathways include:
1. *Glycolysis*: The process of breaking down glucose for energy, found in nearly all living organisms.
2. *Citric acid cycle (Krebs cycle)*: A key metabolic pathway involved in energy production, present in many cells.
3. *Pentose phosphate pathway*: A metabolic pathway involved in energy production and antioxidant defenses, found in many organisms.
These pathways are essential for life and have been conserved across evolution, highlighting their importance for cellular function and survival.
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Isabela Sep炭lveda Restrepo Detection of ferrihydrite in Martian red dust records ancient cold and wet co...
Detection of ferrihydrite in Martian red dust records ancient cold and wet co...S辿rgio Sacani
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Iron oxide-hydroxide minerals in Martian dust provide crucial insights into
Mars past climate and habitability. Previous studies attributed Mars red color
to anhydrous hematite formed through recent weathering. Here, we show that
poorly crystalline ferrihydrite (Fe5O8H 揃 nH2O) is the dominant iron oxidebearing phase in Martian dust, based on combined analyses of orbital, in-situ,
and laboratory visible near-infrared spectra. Spectroscopic analyses indicate
that a hyperfine mixture of ferrihydrite, basalt and sulfate best matches Martian dust observations. Through laboratory experiments and kinetic calculations, we demonstrate that ferrihydrite remains stable under present-day
Martian conditions, preserving its poorly crystalline structure. The persistence
of ferrihydrite suggests it formed during a cold, wet period on early Mars
under oxidative conditions, followed by a transition to the current hyper-arid
environment. This finding challenges previous models of continuous dry oxidation and indicates that ancient Mars experienced aqueous alteration before
transitioning to its current desert state.(Journal Club) - AmpliconReconstructor integrates NGS and optical mapping to ...
(Journal Club) - AmpliconReconstructor integrates NGS and optical mapping to ...David Podorefsky, PhD
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Journal Club (12/15/20)
AmpliconReconstructor integrates NGS and optical mapping to resolve the complex structure of focal amplificationsSCIENCE 7 Q4 4 Assessing Earthquake Risks Using PHIVOLCS FaultFinder.pptx
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Assessing earthquakes
Digestive System - Digestion of carbohydrates, proteins and lipids.ppt
Digestive System - Digestion of carbohydrates, proteins and lipids.pptJamakala Obaiah
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Useful to studentsvibration-rotation spectra of a diatomic molecule.pptx
vibration-rotation spectra of a diatomic molecule.pptxkanmanivarsha
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The material discusses about the energy levels in a molecule which have vibrational and rotational motion.
Direct Gene Transfer Techniques for Developing Transgenic Plants
Direct Gene Transfer Techniques for Developing Transgenic PlantsKuldeep Gauliya
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This presentation will explain all the methods adopted for developing transgenic plant using direct gene transfer technique.2025-03-03-Data-related-Ethics Issues in Technologies for Professional Learni...
2025-03-03-Data-related-Ethics Issues in Technologies for Professional Learni...Graz University of Technology & Know-Center
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(Journal Club) - AmpliconReconstructor integrates NGS and optical mapping to ...
(Journal Club) - AmpliconReconstructor integrates NGS and optical mapping to ...David Podorefsky, PhD
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Activity 17 b gas exchange
- 1. Body Works Activity 17B: Gas Exchange October 29, 2013
- 2. Activity 17B: Gas Exchange October 29, 2013 Getting Started: Complete Anticipation Guide: Gas Exchange. Introduction: Read pg.B-38 and write your RACE question. Gas Exchange Your blood transports the nutrients that you eat to different parts of your body. It also carries oxygen from your lungs to other organs and tissues. Your lungs are part of your respiratory system. With every breath you take you inhale oxygen and exhale carbon dioxide. Your body uses the oxygen to get energy from food. When your body breaks down food, it produces wastes. One of the wastes is carbon dioxide. Indicators are chemcials that change their appearance in How much carbon dioxide is in your exhaled breath? 17B Challenge: Rewrite the challenge question in your own words.
- 3. Key Words: control, indicator, function. Organ, qualitative/quantitative data, range, respiratory system, structure Procedure: Have you read and do you understand the procedure parts A on page B-39 and B on page B-40? Write a one sentence summary for both part A and B. Results: Data Table for Part A Data Table for Part B Analysis: Answer Analysis Question Part A # 2a,b, and c. Answer Analysis Question Part B 3-7 Reflection: Many respiratory diseases limit a persons capacity to exchange oxygen. One of these diseases is pneumonia, which causes the alveoli to fill up with fluid. Another is pleurisy, which is an inflammation of the lining of the lung, making it painful to inhale and exhale. Explain how you believe these diseases may affect your ability to breath.
- 4. Data Table Part A Table 1: The Relationship between various solutions and the presence of Carbon dioxide. Cup Initial BTB Color Final BTB Color After Adding BTB A (Control) B (Air) C (Sodium Hydroxide) D (exhaled breath) E partners exhaled breath)
- 5. Class Data Part B The relationship between students and the amount of carbon dioxide in their breath. Number of people Number of drops 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14