The document provides a review of test questions related to an experiment on studying with music. It asks about independent and dependent variables, how to make the results more reliable, and includes sample data and conclusions. Additional questions cover topics like topographic maps, mass on the moon, temperature, spheres of the Earth, the carbon and nitrogen cycles, and how human activities can impact natural systems.

1. Intro to Earth Science
TEST REVIEW

2. You are designing an experiment to see if
studying with music improves science test
scores…
What is your independent variable?

3. Answer
• Music

4. You are designing an experiment to see if
studying with music improves science test
scores…
What is something you would want to keep the
same when performing this experiment?

5. Answer
• Amount of time studied
• People participating need to have same
intelligence, background etc.
• Subject studied
• And Many more!!!

6. You are designing an experiment to see if
studying with music improves science test
scores…
What would the dependent variable be?

7. Answer
• The scores on the test

8. Here is the data you recorded:
Test #
Test Score with Music Test Score without Music
1
78
88
2
70
72
3
85
91
What conclusion can you make from the data above?

9. Answer
• Studying with music does not cause scores to
increase

10. Thinking of the Music experiment…..
What is one thing that could be done to make
results more reliable?

11. Answer
• Repeat the experiment

12. Thinking of the Music experiment…..
What is one thing that could have happened to
make the results less reliable?

13. Answer
• Many possible answers….changing or altering
any of the controlled variables causes results
to be unreliable

14. A topographic map shows changes in
___________________

15. Answer
• elevation

16. What feature does this topographic map show?

17. Answer
• A hill or mountain

18. The highest point of elevation is found at what
point?

19. Answer
• A

20. What is the elevation at point c?
200m
150m
100m
50m

21. Answer
• Between 100m and 150m

22. What is the contour interval on this map?
200m
150m
100m
50m

23. Answer
• 50 m

24. What feature does this represent?

25. Answer
• A depression

26. How will your mass change if you traveled to the
moon?

27. Answer
• Mass will not change, only weight will change
because it is effected by gravity

28. What does temperature measure?

29. Answer
• The motion (kinetic energy) of particles

30. To measure the mass of a liquid, what unit of
measurement would you use?

31. Answer
• Grams

32. Which sphere includes plants and animals?

33. Answer
• Biosphere

34. Volcanoes and Earthquakes are found in what
sphere?

35. Answer
• Geosphere

36. Explain how a volcanic eruption from the
geosphere could effect 2 other spheres?

37. Answer
• Atmosphere: ash and gases ejected from
eruption
• Hydrosphere: ash deposits contaminate water
• Biosphere: Plants and animals are unable to
survive due to air and water quality, habitat
destruction
• Geosphere: New rock is formed from cooled
lava, ash gets into soil and adds nutrients

38. What is one feature of the atmosphere?

39. Answer
•
•
•
•
•
Mostly Nitrogen
Causes weather
Keeps temps stable
Protects from radiation
Protects from meteors

40. A closed system exchanges ________ but not
__________ with its surroundings

41. Answer
• Energy NOT matter

42. Give one reason as to why the hydrosphere is an
open system

43. Answer
• Water is transferred physically between the
hydrosphere and atmosphere

44. How is the biosphere part of the nitrogen cycle?

45. Answer
• Bacteria fix nitrogen into usable forms for
plants, plants absorb it through their roots,
then animals eat plants. When living things
die, they decay and release nitrogen back into
the soil. Another type of bacteria may transfer
it back into the atmosphere

46. Where is one place that Carbon is stored on
Earth?

47. Answer
• Ocean
• Rock
• Living things

48. How have humans altered the natural balance
of the Carbon cycle?

49. Answer
• By burning fossil fuels at high rates and
deforestation

50. How could using too much fertilizer (nitrogen)
effect the environment? (be specific)

51. Answer
• Plants use nitrogen to grow, but any unused
nitrogen will run off into nearby rivers and
lakes and accumulate. Plants in the lake may
overgrow, causing an imbalance in the food
chain.

52. How does removing rainforests affect the
Carbon cycle?

53. Answer
• The more trees are removed, the less plants
there are to take in carbon from the
atmosphere