7th Grade Final Exam

7th Grade - FINAL EXAM

Multiple Choice
Identify the choice that best completes the statement or answers the question.

____ 1. Scientists use prior experience to ____.
a.
collect data
b.
make predictions about what will happen under certain circumstances
c.
analyze their data
d.
serve as a control in their experiments


____ 2. Examples of the skills used in science include ____ and ____.
a.
cholera , E. coli outbreaks
c.
facts , inferences
b.
clues , detectives
d.
observations , measurements


____ 3. Listing what is known about a problem and possible ways to solve the problem are parts of ____.
a.
making a plan
c.
testing a hypothesis
b.
drawing conclusions
d.
eliminating bias


____ 4. A prediction or statement that can be tested is ____.
a.
a conclusion
c.
a control
b.
an observation
d.
a hypothesis


____ 5. Rocks that are produced when magma or lava cools and hardens are called ____.
a.
igneous rocks
c.
sedimentary rocks
b.
metamorphic rocks
d.
all of the above


____ 6. The word metamorphic means ____.
a.
"change of form"
c.
"changed under extreme pressure"
b.
"produced by heat"
d.
all of the above


____ 7. Broken pieces of what types of rock are deposited into layers and cemented together to form sedimentary rock?
a.
sedimentary
c.
metamorphic
b.
igneous
d.
all of the above


____ 8. The rock cycle shows each rock ____.
a.
as it was millions of years ago
c.
on a continuing journey
b.
as it is in recent times
d.
as it was originally formed


____ 9. All of the following conditions help preserve organisms as fossils EXCEPT ____.
a.
quick burial by sediments
c.
protection from scavengers
b.
hard parts
d.
activities of microorganisms


____ 10. If the same sequence of rock layers is observed over a large area, ____.
a.
they are probably not related
b.
a large deposit of rock formed over a large area
c.
conditions of formation were probably very different
d.
it is just a coincidence


____ 11. Materials enter and leave the nucleus through openings in its ____.
a.
organelles
c.
membrane
b.
DNA
d.
chromatin


____ 12. The major function of leaves is to ____.
a.
make food
c.
transport
b.
store food
d.
absorb nutrients


____ 13. As much as 90 percent of the oxygen in our atmosphere is the result of ____.
a.
photoperiodism
c.
thigmotropism
b.
respiration
d.
photosynthesis


____ 14. Photosynthesis is the process in which plants use energy from light to produce ____.
a.
new cells
c.
food
b.
organelles
d.
none of the above


____ 15. When a dog with a bone growls at another dog, it is showing ____.
a.
aggression
c.
social behavior
b.
courtship behavior
d.
none of the above


____ 16. Which of the following is a biotic factor?
a.
sunlight
c.
water
b.
worms
d.
climate


____ 17. Decaying matter found in soil is called ____.
a.
humus
c.
latitude
b.
consumer
d.
elevation


____ 18. During photosynthesis, light energy becomes ____ energy.
a.
soil life
c.
mechanical
b.
chemical
d.
pyramid


____ 19. Which of the following eats consumers?
a.
carnivore
c.
bacteria
b.
herbivore
d.
fungi


____ 20. Nitrogen in the soil is used by ____.
a.
plants
c.
both a and b
b.
animals
d.
neither a nor b


____ 21. As you move upward, from level to level, in an energy pyramid, energy ____.
a.
decreases
c.
stays at the same level
b.
increases
d.
is destroyed


____ 22. ____ usually have less biodiversity than ____.
a.
Small patches of habitat, large areas
b.
Large patches of habitat, small areas
c.
Forests, lawns
d.
Sunny woods, sidewalks


____ 23. A species that once lived on Earth but died out is a(n)____.
a.
threatened species
c.
extinct species
b.
endangered species
d.
captive population


____ 24. One problem with introduced species is that they can ____.
a.
cause acid rain
c.
crowd out captive populations
b.
crowd out native species
d.
cause ozone depletion


____ 25. An increase in CO2 could cause ____.
a.
ozone depletion
c.
water pollution
b.
acid rain
d.
global warming


____ 26. As you move toward the equator, biodiversity ____.
a.
does not change
c.
decreases
b.
increases
d.
becomes less important


____ 27. A growing population puts demands on the land for ____.
a.
food
c.
landfills for trash
b.
living space
d.
all of the above


____ 28. Reduced vegetation on Earth results in ____.
a.
more carbon dioxide in the atmosphere
c.
less room for humans
b.
increased habitats
d.
more oxygen in the atmosphere


____ 29. Eroded topsoil may take ____ years to replace in some places.
a.
100
c.
1,000
b.
10
d.
1 or 2


____ 30. A measure of the strength of acid rain can be given using ____.
a.
an acid
c.
a pH scale
b.
a base
d.
all of the above


____ 31. In 1990, diplomats from around the world signed a treaty to completely eliminate the use of ____.
a.
fossil fuels
c.
sulfur dioxide
b.
chloroflourocarbons
d.
none of the above


____ 32. A way for individual citizens to improve air quality is to ____.
a.
reduce industrial pollution
c.
burn trash
b.
take more showers
d.
use public transportation


____ 33. Water pollutants include ____.
a.
pesticides
c.
sediment
b.
fertilizers
d.
all of the above


____ 34. The 1990 Clean Air Act will eventually affect the economy because ____.
a.
factory workers may lose their jobs
b.
coal miners may lose their jobs
c.
workers at coal-burning power plants may lose their jobs
d.
all of the above


____ 35. _____ is the process by which food is broken down so that nutrients can be used by the body.
a.
Absorption
c.
Elimination
b.
Digestion
d.
Ingestion


____ 36. Chemical digestion would not be possible without _____ that speed up the rate of chemical reactions in your body.
a.
enzymes
c.
nutrients
b.
molecules
d.
vitamins


____ 37. Chewing is an example of _____.
a.
absorption
c.
elimination
b.
chemical digestion
d.
mechanical digestion


____ 38. What type of digestion takes place in the mouth?
a.
chemical
c.
both
b.
mechanical
d.
neither


____ 39. What type of digestion takes place in the esophagus?
a.
chemical
c.
both
b.
mechanical
d.
neither


____ 40. Nutrients are absorbed into blood vessels through _____ in the small intestine.
a.
bacteria
c.
insulin
b.
glands
d.
villi


____ 41. A molecule of _____ is made of building blocks called amino acids.
a.
carbohydrate
c.
protein
b.
fat
d.
water


____ 42. _____ are the main sources of energy for your body.
a.
Carbohydrates
c.
Vitamins
b.
Minerals
d.
Water


____ 43. Vocal cords are found in your _____.
a.
bronchi
c.
pharynx
b.
larynx
d.
trachea


____ 44. Lungs are masses of _____, grapelike clusters of tiny sacs.
a.
alveoli
c.
cilia
b.
bronchioles
d.
hemoglobin


____ 45. The exchange of oxygen and carbon dioxide takes place between the alveoli and capillaries in the _____.
a.
bronchi
c.
lungs
b.
larynx
d.
trachea



____ 46. If this figure showed the major organs for each excretory system, which would not be shown?
a.
the brain
c.
the large intestine
b.
the kidneys
d.
the lungs


____ 47. Which of the following functions does the urinary system perform?
a.
It removes wastes from the blood.
b.
It balances the amounts of salts and water in the body.
c.
It controls blood volume by removing excess water produced by body cells.
d.
All of these.


____ 48. Two bean-shaped _____ are the major organs of the urinary system.
a.
aortas
c.
kidneys
b.
bladders
d.
nephrons


____ 49. Which one of the following carries blood to every part of the body?
a.
blood vessels
c.
lymph nodes
b.
the heart
d.
the ventricles


____ 50. Which of the following shows the correct order of blood flow?
a.
atrium, blood vessel, ventricle
c.
blood vessel, ventricle, atrium
b.
atrium, ventricle, blood vessel
d.
ventricle, blood vessel, atrium


____ 51. How does blood move from arteries to veins?
a.
through the aorta
c.
through capillaries
b.
through the heart
d.
through oxygen


Matching

Match the organ with its location along the digestive tract as shown in this figure.
a.
Anus
e.
Rectum
b.
Esophagus
f.
Small intestine
c.
Large intestine
g.
Stomach
d.
Mouth



____ 52. Match the organ with its position in the figure shown.

____ 53. Match the organ with its position in the figure shown.

____ 54. Match the organ with its position in the figure shown.

____ 55. Match the organ with its position in the figure shown.

____ 56. Match the organ with its position in the figure shown.

____ 57. Match the organ with its position in the figure shown.

____ 58. Match the organ with its position in the figure shown.

Completion
Complete each statement.

59. Complete Figure 9-1 by inserting the correct terms in the rock cycle diagram.

Figure 9-1

60. ____________________ factors are nonliving.

61. Respiration ____________________ oxygen and ____________________ carbon dioxide.

62. In a food chain, the lowest level of consumers eat ____________________.

63. Overlapping food chains make a food ____________________.

64. Substances with a pH lower than seven are considered ____________________.

65. Substances with a pH above seven are considered ____________________.
7th Grade - FINAL EXAM
Answer Section

MULTIPLE CHOICE

1. ANS: B PTS: 1 DIF: Webb's II OBJ: 1/1
STA: SC.H.1.3.1

2. ANS: D PTS: 1 DIF: Webb's I OBJ: 2/1
STA: SC.H.1.3.4

3. ANS: A PTS: 1 DIF: Webb's I OBJ: 3/2
STA: SC.H.1.3.4

4. ANS: D PTS: 1 DIF: Webb's I OBJ: 3/2

5. ANS: A PTS: 1 DIF: Webb's I OBJ: 3/2
STA: SC.H.2.3.1

6. ANS: A PTS: 1 DIF: Webb's I OBJ: 5/3

7. ANS: D PTS: 1 DIF: Webb's I OBJ: 4/2
STA: SC.D.1.3.1

8. ANS: C PTS: 1 DIF: Webb's I OBJ: 6/3
STA: SC.H.2.3.1

9. ANS: D PTS: 1 DIF: Webb's II OBJ: 1/1
STA: SC.F.2.3.4

10. ANS: B PTS: 1 DIF: Webb's I OBJ: 6/2
STA: SC.D.1.3.1

11. ANS: C PTS: 1 DIF: Webb's I OBJ: 2/1
STA: SC.F.1.3.1

12. ANS: A PTS: 1 DIF: Webb's I OBJ: 7/3
STA: SC.F.1.3.1

13. ANS: D PTS: 1 DIF: Webb's I OBJ: 3/1
STA: SC.G.1.3.4

14. ANS: C PTS: 1 DIF: Webb's I OBJ: 2/1
STA: SC.F.1.3.1 SC.G.1.3.5

15. ANS: A PTS: 1 DIF: Webb's II OBJ: 4/2
STA: SC.F.1.3.7 SC.F.2.3.3

16. ANS: B PTS: 1 DIF: Webb's I OBJ: 1/1
STA: SC.G.1.3.3

17. ANS: A PTS: 1 DIF: Webb's I OBJ: 1/1
STA: SC.D.1.3.2

18. ANS: B PTS: 1 DIF: Webb's I OBJ: 7/3
STA: SC.G.1.3.5

19. ANS: A PTS: 1 DIF: Webb's I OBJ: 8/3
STA: SC.G.1.3.4

20. ANS: C PTS: 1 DIF: Webb's I OBJ: 6/2
STA: SC.G.1.3.4

21. ANS: A PTS: 1 DIF: Webb's I OBJ: 9/3
STA: SC.B.1.3.4

22. ANS: A PTS: 1 DIF: Webb's I OBJ: 1/1
STA: SC.F.1.3.1 SC.G.1.3.3

23. ANS: C PTS: 1 DIF: Webb's I OBJ: 3/1
STA: SC.G.2.3.3 SC.G.2.3.4

24. ANS: B PTS: 1 DIF: Webb's II OBJ: 3/1
STA: SC.G.2.3.3 SC.G.2.3.4

25. ANS: D PTS: 1 DIF: Webb's I OBJ: 3/1
STA: SC.G.1.3.4 SC.G.2.3.2 SC.G.2.3.4

26. ANS: B PTS: 1 DIF: Webb's I OBJ: 1/1
STA: SC.G.1.3.4 SC.G.2.3.2 SC.G.2.3.3 SC.G.2.3.4

27. ANS: D PTS: 1 DIF: Webb's I OBJ: 5/2
STA: SC.D.2.3.2 SC.G.2.3.4

28. ANS: A PTS: 1 DIF: Webb's II OBJ: 5/2
STA: SC.D.2.3.2 SC.G.2.3.4

29. ANS: C PTS: 1 DIF: Webb's I OBJ: 5/2
STA: SC.D.2.3.2 SC.G.2.3.4

30. ANS: C PTS: 1 DIF: Webb's I OBJ: 5/2
STA: SC.D.2.3.2 SC.G.2.3.4

31. ANS: B PTS: 1 DIF: Webb's I OBJ: 6/2
STA: SC.D.2.3.2 SC.G.2.3.4

32. ANS: D PTS: 1 DIF: Webb's II OBJ: 6/2
STA: SC.D.2.3.2 SC.G.2.3.4

33. ANS: D PTS: 1 DIF: Webb's I OBJ: 1/1
STA: SC.D.2.3.2 SC.G.2.3.4

34. ANS: D PTS: 1 DIF: Webb's II OBJ: 6/2
STA: SC.D.2.3.2 SC.G.2.3.4

35. ANS: B PTS: 1 DIF: Webb's I OBJ: 1/1
STA: SC.F.1.3.1

36. ANS: A PTS: 1 DIF: Webb's I OBJ: 1/1
STA: SC.F.1.3.1

37. ANS: D PTS: 1 DIF: Webb's I OBJ: 1/1
STA: SC.F.1.3.1

38. ANS: C PTS: 1 DIF: Webb's I OBJ: 2/1
STA: SC.F.1.3.1

39. ANS: D PTS: 1 DIF: Webb's I OBJ: 2/1
STA: SC.F.1.3.1

40. ANS: D PTS: 1 DIF: Webb's I OBJ: 2/1
STA: SC.F.1.3.1

41. ANS: C PTS: 1 DIF: Webb's I OBJ: 4/2
STA: SC.F.1.3.1

42. ANS: A PTS: 1 DIF: Webb's I OBJ: 5/2
STA: SC.F.1.3.1

43. ANS: B PTS: 1 DIF: Webb's I OBJ: 9/3
STA: SC.F.1.3.1

44. ANS: A PTS: 1 DIF: Webb's I OBJ: 9/3
STA: SC.F.1.3.1

45. ANS: C PTS: 1 DIF: Webb's I OBJ: 8/3
STA: SC.F.1.3.1

46. ANS: A PTS: 1 DIF: Webb's II OBJ: 12/4
STA: SC.F.1.3.1 SC.F.1.3.4

47. ANS: D PTS: 1 DIF: Webb's I OBJ: 11/4
STA: SC.F.1.3.1

48. ANS: C PTS: 1 DIF: Webb's I OBJ: 12/4
STA: SC.F.1.3.1

49. ANS: A PTS: 1 DIF: Webb's I OBJ: 4/2
STA: SC.F.1.3.1

50. ANS: B PTS: 1 DIF: Webb's I OBJ: 5/2
STA: SC.F.1.3.1

51. ANS: C PTS: 1 DIF: Webb's I OBJ: 4/2
STA: SC.F.1.3.1

MATCHING

52. ANS: A PTS: 1 DIF: Webb's II OBJ: 2/1
STA: SC.F.1.3.1 SC.F.1.3.4

53. ANS: B PTS: 1 DIF: Webb's II OBJ: 2/1
STA: SC.F.1.3.1 SC.F.1.3.4

54. ANS: G PTS: 1 DIF: Webb's II OBJ: 2/1
STA: SC.F.1.3.1 SC.F.1.3.4

55. ANS: F PTS: 1 DIF: Webb's II OBJ: 2/1
STA: SC.F.1.3.1 SC.F.1.3.4

56. ANS: C PTS: 1 DIF: Webb's II OBJ: 2/1
STA: SC.F.1.3.1 SC.F.1.3.4

57. ANS: E PTS: 1 DIF: Webb's II OBJ: 2/1
STA: SC.F.1.3.1 SC.F.1.3.4

58. ANS: A PTS: 1 DIF: Webb's II OBJ: 2/1
STA: SC.F.1.3.1 SC.F.1.3.4

COMPLETION

59. ANS: A. sediment, B. sedimentary rock, C. magma, D. igneous rock

PTS: 1 DIF: Webb's II OBJ: 6/3 STA: SC.D.1.3.1 SC.H.2.3.1

60. ANS: Abiotic

PTS: 1 DIF: Webb's I OBJ: 1/1 STA: SC.G.1.3.3

61. ANS: uses, releases

PTS: 1 DIF: Webb's I OBJ: 5/2 STA: SC.G.1.3.4

62. ANS: producers

PTS: 1 DIF: Webb's I OBJ: 8/3 STA: SC.G.1.3.4

63. ANS: web

PTS: 1 DIF: Webb's I OBJ: 8/3 STA: SC.G.1.3.4

64. ANS: acids

PTS: 1 DIF: Webb's I OBJ: 4/2

65. ANS: bases

PTS: 1 DIF: Webb's I OBJ: 4/2