1. A measurement is a/an: A) observation B) law C) theory

2. An equation is a/an: A) observation B) law C) theory

3. An explanation is a/an: A) observation B) law C) theory

4. "Dead men tell no tales" is a/an: A) observation B) law C) theory

5. "Peter Piper picked a peck of pickled peppers" is a/an: A) observation B) law C) theory

6. "Inflections are caused by microbes eating the flesh" is a/an: A) observation B) law C) theory

7. "There were bells all around, but I never heard them ringing " is a/an: A) observation B) law C) theory

8. "mass of reactants equals mass of products in a chemical reaction" is a/an: A) observation B) law C) theory

9. "Fires are chemical reactions with oxygen" is a/an: A) observation B) law C) theory

10. "Human activity is causing climate change" is a/an: A) observation B) law C) theory

11. "California has been in a drought for four years" is a/an: A) observation B) law C) theory

12. "Dead men tell no tales" is a/an: A) observation B) law C) theory

13. "i before e except after c" is a/an: A) observation B) law C) theory

14. "My baby does the honky tonky" is a/an: A) observation B) law C) theory

15. "Well my heart went ‘boom' when she crossed that room and she held her hand in mine" is a/an: A) observation B) law C) theory

16. "Everybody plays the fool, no exceptions to the rule" is a/an: A) observation B) law C) theory

17. "The Greek gods were actually ancient aliens" is a/an: A) observation B) law C) theory

18. "Planets closer to the sun travel faster than planets further from the sun" is a/an: A) observation B) law C) theory

19. "water flows in the direction where it travels fastest" is a/an: A) observation B) law C) theory

20. "light bends towards the direction where it travels fastest" is a/an: A) observation B) law C) theory

21. "The age of the earth is 4.543 billion years" is a/an: A) observation B) law C) theory

22. "The age of the universe is 13.772 billion years" is a/an: A) observation B) law C) theory

23. "Large stars have shorter life times than small stars" is a/an: A) observation B) law C) theory

24. "sound travels faster through water than through air" is a/an: A) observation B) law C) theory

25. "sound travels faster through liquids than through gases" is a/an: A) observation B) law C) theory

26. Suppose a student suggests that some people can eat chili peppers because of an enzyme in their saliva. What is the best experiment to test this?

A) have a person who can eat hot chilies chew up a chili, spit it into a cup and another person who can eat hot chilies taste it.

B) have a person who can eat hot chilies chew up a chili, spit it into a cup and another person who can not eat hot chilies taste it.

C) have a person who can not eat hot chilies chew up a chili, spit it into a cup and another person who can eat hot chilies taste it.

D) have a person who can not eat hot chilies chew up a chili, spit it into a cup and another person who can not eat hot chilies taste it.

E) have a person who can eat hot chilies spit into the mouth of a person who can not eat hot chilies before the second person tries to eat a chili.

27. A student wants to determine whether cats prefer yogurt or sour cream. How can the student test this?

A) put sour cream on his/her left toes and yogurt on the his/her right toes and see which foot the kitty licks.

B) one day put sour cream on your toes and the next day put an equal amount of yogurt on your toes and time how long it takes kitty to lick it off.

C) Continue to add sour cream or yogurt to your toes until kitty stops eating. Measure the amount that kitty has eaten.

D) Set kitty free in the super market and let kitty choose.

E) A, B, and C should all be performed.