The document discusses the scientific method and how it is used to systematically acquire knowledge and solve problems. It provides examples of how to formulate a hypothesis based on observations, conduct experiments to test the hypothesis, record and analyze results, and draw conclusions. The steps of the scientific method are outlined as make observations, ask questions, develop a hypothesis, test with an experiment, analyze results, and draw conclusions. Variables and how to identify independent and dependent variables are also explained. An example experiment is provided to test if ice melts faster in juice or water. [/SUMMARY]
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Q1 W1 Day 1 Scie 7.pptx
2. Quarter 1 Week 1
Scientific Ways of Acquiring
Knowledge and Solving
Problems
4. How would a
farmer be able
to identify
which seeds
are good and
which seeds
are bad?
5. Activity 1.1
Science is a way of thinking and a way of
gathering knowledge about the world that is
both accurate and reliable. It is the quest to
understand and improve our knowledge of the
world around us, and how the things in it work
or why they work the way they do.
6. Activity 1.1
The scientific method is like the road map
that you follow to get to that destination. It is
the process by which science is carried out, as
in other areas of inquiry; science through
scientific method can build on previous
knowledge and develop a more sophisticated
understanding of its topics of study over time.
7. Activity 1.1
When using scientific method to carry out your
own investigation, the first thing you need to do is
observe then ask questions. Just look at all the things
around you. Does something make you curious?
Does something seem strange to you? Do you
wonder what causes something or why something
happens? Have you asked yourself; why is the sky
blue? What makes soda fizzy? The possibilities for
observations and questions are endless.
8. Activity 1.1
The next scientific method will involve you to test
hypothesis. Hypothesis is an educated guess. It is a
preliminary answer to the question you have asked that
you will test to see if it seems to be true. Keep in mind
that it does not matter whether your hypothesis is
right or wrong. The next step is to test your
hypothesis wherein you will design and conduct an
experiment. After your experiment, make sure to record
the observations and data so you will be able to analyze
the results.
9. Activity 1.1
Finally, you need to draw conclusions.
The main aim is to summarize the findings
of your experiment and determine
whether your hypothesis is accepted or
rejected.
10. Activity 1.1
Make
Observations
Come up
with a
Question
Develop a
hypothesis or
prediction
Test the
hypothesis
(Experimentation)
Record and
Analyze the
results
Draw
Conclusions
11. BASIC STEPS OF SCIENTIFIC METHOD
1. MAKE OBSERVATIONS
There are tons of everyday activities that would
make cool science experiments using the scientific
method.
A student noticed that ice melted fast in water.
12. BASIC STEPS OF SCIENTIFIC METHOD
2. COME UP WITH A QUESTION
The students observations should lead to
some sort of questions.
Does ice melt faster in different liquids?
Curiosity on what happens to the ice in
liquids is a simple science experiment perfect
for using the scientific method.
13. BASIC STEPS OF SCIENTIFIC METHOD
3. DEVELOP A HYPOTHESIS OR PREDICTION
You have made your observations and you have your
questions. Now you need to make a prediction about
what you think will happen next.
A hypothesis is not simply a guess! A hypothesis is
an educated guess or tentative answer to a problem.
The student thinks that ice will melt faster in juice
than it will in water. Maybe he just wants to get a drink
of juice out of it.
14. BASIC STEPS OF SCIENTIFIC METHOD
Example:
1. What happens to the growth of mongo
seeds if table salt was added to the
soil?
2. Tomato seeds may grow faster in
colder temperature.
15. BASIC STEPS OF SCIENTIFIC METHOD
Hypothesis:
1. If the amount of salt added to the soil increases,
then the growth of mongo seeds decreases.
2. If tomato seeds were planted in colder
temperature, then the seeds will grow at a faster
rate.
16. BASIC STEPS OF SCIENTIFIC METHOD
Variables
Identifying and controlling variables
involve the process of deciding which
variables or factors will influence the
outcome of an experiment, situation or
event and deliberately control all recognized
variables in a systematic manner.
17. BASIC STEPS OF SCIENTIFIC METHOD
Variables
Variables in an experiment may be independent
or dependent. The variable that is being
manipulated or controlled is called independent
variable. The dependent variable changes
because of a test. It is the effect that arises from
the changes in the independent variable.
18. BASIC STEPS OF SCIENTIFIC METHOD
4. CONDUCT AN EXPERIMENT OR TEST THE
HYPOTHESIS
We made a prediction that ice will melt faster
in juice than in water, and now we must test
our hypothesis.
We set up an experiment with a glass of
juice, a glass of water and an ice cube for
each.
19. BASIC STEPS OF SCIENTIFIC METHOD
For the best experiments, only one thing
should change!
Here, we are changing the type of liquid
we use but keeping the ice cube, the
temperature, and measurements of the
liquid the same.
If too many factors change at once, you
cannot accurately state what the results
are.
20. BASIC STEPS OF SCIENTIFIC METHOD
The liquids should be roughly the same
temperature (as close as possible) and
measured to the same amount, so we left
them out to come to room temperature.
This could also be tested right out of the
fridge! Set up a stopwatch or set a time
limit to observe the changes!
21. BASIC STEPS OF SCIENTIFIC METHOD
5. RECORD AND ANALYZE THE RESULTS
Make sure to record what is happening as
well as the results.
Note changes at specific time intervals or
after one set time interval. When each ice cube
is completely melted, add drawings if you wish
at the end results.
Was your prediction accurate? If it is not
accurate, state the reason/s.
22. BASIC STEPS OF SCIENTIFIC METHOD
6. DRAW CONCLUSIONS
This is the opportunity to talk about your
hypothesis, your experiment, your results,
and your conclusion which is the final
answer to your problem or experiment!
24. Assessment
1. What skill is used by a scientist when
he/she listens to the sounds that are
produced by whales?
A. Interpreting data
B. Drawing conclusions
C. Making a hypothesis
D. Making observations
25. Assessment
2. What is the correct order of the steps in the scientific method?
A. Ask a question, analyze results, make a hypothesis, test
the hypothesis, draw conclusions, communicate results.
B. Ask questions, make a hypothesis, test the hypothesis,
analyze results, draw conclusions, communicate results.
C. Ask a question, make a hypothesis, test hypothesis, draw
conclusions, analyze results, communicate results.
D. Make a hypothesis, test the hypothesis, analyze the
results, ask a question, draw conclusions, communicate
results.
26. Assessment
3. Which of the following hypotheses is written
correctly?
a. If frozen tennis balls will not bounce as high.
b. If I heat up a tennis ball it will bounce high.
c. If I freeze a tennis ball, then it will not bounce as
high.
d. If a tennis ball is frozen, it will not bounce as high
as one that is not frozen.
27. Assessment
4. What is the last step in scientific
method?
A. Writing report
B. Collecting data
C. Analyzing data
D. Drawing conclusions
28. Assessment
5. Why is experiment important?
A. helps create jobs for scientists.
B. creates more questions to be answered.
C. ensures that many tools are used safely and
accurately.
D. allows for new discoveries and knowledge in science.