8th Grade Review Packet
Instructions: Find the correct answer for each question. On page 6, write your correct answer next to the correct question number.
1. A contour line is a…
A. A topographic map has _____ that connect places that have the same elevation.
B. tiny pieces that from from the weathering of rocks are_____.
2. S5E1a
Which of these surface features formed from deposition?
A. Sand Dunes
B. Mountains
C. Volcanoes
D. Sinkhole
3. S5E1b
Acids dissolving the minerals in a rock is an example of
A. physical weathering
B. chemical weathering
C. erosion
D. landslide erosion
4. S5E1a
Which surface feature formed from volcanoes?
A. The Himalaya Mountains
B. The Mississippi River delta
C. The islands off the Georgia coast
D. The islands of Hawaii
5. S5E1b
Solid Limestone may change into a cave when
A. plant roots grow into the rock
B. water causes weathering and erosion
C. volcanoes erupt underground
D. a river deposits sediment
6. The outermost layer of the Earth is called the _____.
A. crust
B. mantle
C. lithosphere
D. core
7. S5E1a
Where could you observe a volcano?
A. northern Georgia
B. the rim of the Pacific Ocean
C. Florida
D. the Himalaya Mountains
8. S5E1c
By studying the wavy lines of a seismograph, scientists can _____ earthquakes.
A. prevent
B. cause
C. measure
D. ignore
9. S5E1b
Over many years, erosion changes a mountain range by making the peaks-
A. more jagged
B. taller
C. shift to the east or west
D. shorter and rounder
10. S5E1a
The constructive forces that build mountains are best explained by—
A. the theory of plate tectonics
B. weathering and erosion
C. the water cycle
11. S5E1c
Sandbags are piled along the banks of a rising river to form a
A. temporary levee
B. temporary dam
C. reservoir
D. storm drain system
12. S5E1c
Keeping trash out of city streets helps keep ____ in working order.
A. storm drains
B. floodways
C. dams and reservoirs
D. levees
13. S5E1c
What effect of global warming may be causing beaches to erode?
A. higher sand temperatures
B. melting polar ice
C. less sediment in rivers
D. more jetties and dredging
14. S5E1c
Where is terrace farming most useful?
A. on the Great Plains
B. on Georgia’s Golden Isles
C. on any flat land
D. along a hillside
15. S5E1a
The process of ____ causes sand to build up on a beach.
A. deposition B. erosion
16. S5P1b
Which tool would best help you observe the small parts of an object?
A. telescope
B. hand lens
C. balance
D. graduated cylinder
17. S5P2b
An example of water changing its state of matter is
A. mixing water and cooking oil.
B. wood burning.
C building a snowman.
D. steam rising from a kettle.
18. S5P2c
A chemical property of an iron nail is its ability to
A. rust.
B. burn.
C. stay straight when hammered.
D. bend when hammered.
19. S5P2b
As ice melts, water molecules change their
A. number of atoms.
B. mass.
C. arrangement.
D. chemical properties.
20. A mixture in which the particles of matter are evenly mixed together is a/an….
A. Solution
B. Mixture
C. Chemical Reaction
D. Physical Change
21. S5P2b
Liquid water freezing into ice is an example of a…
A. physical change
B. chemical change
C. electrical change
D. change of mass
22. S5P2c
An antacid tablet undergoes a chemical change when it is…
A. placed in water and releases bubbles
B. cut in half
C. crunched into powder
D. scratched by a knife
23. S5P2a
A mixture is passed through a filter that traps large pieces. The mixture is separated according to ___ of its parts.
A. the density
B. all the properties
C. a physical property
D. a chemical property
24. S5P2c
When substances undergo a chemical change, their ____ always stay(s) the same.
A. total mass
B. total volume
C. physical properties
D. temperatures
25. Current can move along only one path in a/an….
A. magnetic poles
B. generator
C. series circuit
D. insulators
S5CS4b
Use the words below to fill in the boxes for questions 26-29.
Iron nailsteel knife
plastic spoonwooden pencil
26. / 27.
28. / 29.
30. S4P3a
A balloon and a cloth could help you investigate
A. static electricity
B. electric circuits
C. magnetism
D. electromagnets
31. S5P3b
In an electric circuit, a switch is useful for
A. insulating the current
B. creating a magnetic field
C. providing a source of electricity
D. opening on closing the circuit
32. S5P3d
To change an iron nail into a powerful magnet, you should…
A. place it in water.
B. stroke it with a bar magnet.
C. wrap it in current-carrying loops of wire.
D. cover it with an insulator.
33. S5P3d
What type of magnet does Earth act like?
A. Giant bar magnet
B. Giant temporary magnet
C. Giant electromagnet
D. Small, weak magnet
34. _____ are animals without a backbone.
35. _____ are vascular plants that produce flowers.
S5L1a
36. Which of these groups includes the largest number of species?
A. invertebrates
B. vertebrates
C. mollusks
D. mammals
S5L1b
37. Which of these plants is classified in a different group from the other three?
A. apple tree
B. dandelion
C. fern
D. corn plant
S5L1a
38. Mammals have which trait that birds and reptiles lack?
A. four legs
B. lungs
C. backbones
D. body hair
S5L1a
39. Producing seeds in cones is a trait of ______?
A. an angiosperm
B. a gymnosperm
C. a fern
D. any green plant
40. Cells of the ______produce antibodies.
41. The arteries are part of the _____.
42. S5L3b
Which cell part is found in both plant cells and animal cells?
A. cell membrane
B. cell wall
C. chloroplast
D. a large central vacuole
S5L3c
43. Which of these organisms lacks tissues, organs, and organ systems?
A. humans
B. trees
C. bacteria
D. horses
S5L4b
44. Infectious diseases are caused by______.
A. white blood cells
B. lack of vitamins
C. aging body cells
D. harmful microorganisms and viruses
S5L3b
45. In chloroplasts, energy from the Sun is used to make food in a process called _____.
A. photosynthesis
B. mitosis
C. respiration
D. inflammation
46.
47.
48.
49. Exponents are a ______way to express ______a number by ______one or more times.
63
Answer questions 50 and 51 using the diagram above.
50. The exponent is ______.
51. The base is ______.
52. Simplify the following:
47 x 42 The correct answer is ______.
53. Use the Order of Operations to solve for question number 53.
53. (102-2) ÷ 10 + 42
Grade ______Write your correct answer next to the question number below.