Grade 10 chemical change
- 1. NEENA HARIDAS Physical Science Reg. No: 13971014
- 2. To study the difference between a physical and chemical change.
- 3. Matter is everywhere. Matter is anything that takes up space and has mass. Matter is constantly experiencing both chemical and physical changes.
- 4. A physical change alters the form of a substance, but does not change it to another substance. It changes shape or size It dissolves. It changes phase (freezes, boils, evaporates, condenses) Example: Making Orange Juice
- 5. Physical changes occur when matter changes its property but not its chemical nature. Physical property changes could include a change in: texture, shape, size, color, odor, volume, mass, weight, and density.
- 6. Crushing an aspirin A Boiled egg Physical Change
- 7. Cutting paper? Physical Change
- 8. Physical Change Ice melting?
- 11. Dry ice? Physical Change
- 12. Chemical changes are changes matter undergoes when it becomes new or different matter. It burns Temperature changes without heating/cooling It bubbles (makes a gas) It changes color It forms a precipitate
- 13. When a substance undergoes a chemical change, it is changed into a different substance with different properties. To identify a chemical change look for signs such as color change, bubbling and fizzing, light production, smoke, and presence of heat. Example: Baking a Cake
- 14. 1. Precipitation 2. Color Change
- 15. 4. Temperature Change 3. Gas Production
- 16. A chemical change occurs when fireworks are used. Fireworks are made of metals such as magnesium and copper. These change chemically as they light up the sky.
- 17. Lighter fluid burining Chemical Change
- 18. Sugar dissolving in tea Examples for Chemical Change Logs burning Breaking water up by separating it into hydrogen and oxygen
- 20. Rocket fuel burning? Chemical Change
- 21. Metal rusting? Chemical Change
- 23. Tears up paper? Physical change Mixes salt and water? Physical change Burns paper? Chemical change Evaporates salt water? Physical change Mixes vinegar and baking soda? Chemical change
- 24. Write a paragraph about the difference between a chemical and physical change. Give examples of each.