1. Jeopardy Final Jeopardy Physical changes Chemical changes Examples
Law of
Conservation
Of mass
Examples
Misc
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Final Jeopardy

2. Physical changes - $100 Which choice is a physical change? COLOR
Burning wood OR color
COLOR

3. Physical changes - $200 Why is ice melting a physical change?
When it happens the ice is still made water H20 molecules. It doesn’t turn into a new substance.

4. Physical changes - $300
When we heat metal over a fire it expands when exposed to the flame. Is this a physical or chemical change and why?
Physical change because metal does not burn, therefore it stays the same substance when it expands. This makes it physical.

5. Physical changes - $400 What does solubility mean?
How well/if an object dissolves when placed with another substance.

6. Physical changes - $500
What is a physical change and how is it different than a chemical change?
A physical change is a change in a substance that does not involve that substance turning into something new.
Chemical changes turn the substance into something new

7. Chemical changes - $100 Which is a chemical change? Rusting metal
Rusting metal on your car
Paint cracking and chipping on your car
Rusting metal

8. Chemical changes - $200
When a reaction occurs between two substances, what is the proof that a new substance is forming?
Bubbles prove that gases are forming

9. Chemical changes - $300
List three types of chemical changes/properties.
Reactivity
Flammability
Milk souring
rusting

10. Chemical changes- $400 What is the definition of a chemical change?
A change that occurs with a substance that turns it into another substance as a result

11. Chemical changes - $500 What is electrolysis?
Using electricity to separate water into its component parts hydrogen and oxygen.

12. Conservation of Mass - $100
What is matter?
Anything that takes up space

13. Conservation of mass - $200
Is there anyway to destroy matter? NO

14. Conservation of mass - $300
If we react vinegar and baking soda, the two substances disappear. What must they turn into based on the law of conservation of mass?
Gases

15. Conservation of mass - $400
What is the law of conservation of mass?
Matter cannot be created nor destroyed

16. Conservation of mass - $500
Explain an example of a reaction using the law of conservation of mass.
Answers will vary

17. Examples - $100
Is melting ice a chemical or physical change?
Physical

18. Examples - $200 What is the ability for something to dissolve called?
Solubility

19. Examples- $300
What is the difference between reactivity and flammability?
Reactivity- reacts
Flammability- burns something

20. Examples - $400 List 6 types of physical changes/properties.
Color solubility
Density hardness
Malleability mass
Conductivity volume
Density shape

21. Examples - $500 List 4 types of chemical properties/changes Rust
Flammability
Electrolysis
Souring of milk
Rotting of food

22. MISC - $100 What is a sign that a chemical reaction is taking place?
bubbles

23. MISC - $200 What effect does temperature have on rate of reactions?
As temperature increases the rate of reaction increases.

24. MISC - $300
How would you observe if a change was a chemical or physical change?
Check to see if the substance turned into a new one or not

25. MISC - $400 Is melting something a chemical or physical change? Why?
Physical change because it does not turn into a new substance when we melt something

26. MISC - $500
What is the difference between a chemical and physical change?
A chemical change is a change that involves the substance turning into a new substance where a physical change is a change that does not change the substance into a new one.

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