Science review with Mr. Newton

2. True/ FalseVocabulary pH Carbon
Atomic
Energy
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10

3. QUESTION:
•A change in matter that creates a new substance
ANSWER:
•Chemical Change

4. QUESTION:
• A substance present before a chemical change
ANSWER:
• reactant

5. QUESTION:
• man- made plastics
ANSWER:
• synthetics

6. QUESTION:
•Compound formed by a reaction between an acid and base
ANSWER:
• salt

7. QUESTION:
• The building blocks of all living things
ANSWER:
• organic compound

8. QUESTION:
• What number is neutral on the pH scale?
ANSWER:
• 7

9. QUESTION:
• Examples: drain clear, vinegar, ammonia
ANSWER:
• base

10. QUESTION:
• If you have a base of 9, what acid level do you need to
make it neutralized?
ANSWER:
• 5

11. QUESTION:
• Acids taste _______.
ANSWER:
• sour

12. QUESTION:
• Materials that change color in the presences of acids and
bases are __________.
ANSWER:
• indicator

13. QUESTION:
• A poisonous gas made from fuels not completely
burning.
ANSWER:
• carbon monoxide (CO)

14. QUESTION:
• A molded material that can retain its shape.
ANSWER:
• plastic

15. QUESTION:
• Gas that comes from chicken poop.
ANSWER:
• Methane

16. QUESTION:
•What is frozen carbon dioxide?
ANSWER:
• dry ice

17. QUESTION:
• Organic compound that stores energy.
ANSWER:
• lipids

18. QUESTION:
• Element that gives off energy in the form of rays or
particles
ANSWER:
• radioactive

19. QUESTION:
• Strongest type of radiation.
ANSWER:
• gamma rays

20. QUESTION:
Type of radiation that can not pass through paper.
ANSWER:
• alpha particles

21. QUESTION:
•When a neutron splits a nucleus into two or more pieces
ANSWER:
• nuclear fission

22. QUESTION:
•A device that measures the radioactivity of a substance.
ANSWER:
• Geiger counter

23. QUESTION:
•Leaves changing color is a chemical reaction.
ANSWER:
• true

24. QUESTION:
•A synthesis reaction breaks down into more simple substances
ANSWER:
• false

25. QUESTION:
• Changing the concentration of a reaction will not affect the
chemical reaction
ANSWER:
• false

26. QUESTION:
•Adding ammonia to a mixture would make it more acidic.
ANSWER:
• false

27. QUESTION:
•A lemon is a 2 on the pH level.
ANSWER:
• true