Download 8TH Grade Fourth Marking Period Test

8th Grade Final Exam Review
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1. Current science states that the age of the earth is approximately_________ old.
a. 400,000 years
b. 4 million years
c. 400 years
d. 4 billion years
2. Which of the following causes the tides of the earth?
a. The moon alone
b. The asteroid belt
c. The sun and moon
d. The moon and mercury
3. What evidence can scientists use to support the continental drift theory?
a. Fossils
b. The mantle
c. Volcanoes
d. Geysers
4. What is the name given to the super continent thought to exist millions of years ago?
a. Antarctica
b. Iberia
c. Eurasia
d. Pangaea
5. Which of the following is most likely to begin the process in which rock is broken down into
sediment?
a. Weathered and eroded sediments
b. Pieces of soil and rock cementing together (usually caused by rain/water)
c. Decayed plants that changed under intense pressure
d. Cooled magma
6. Ice forming in the crack of a cliff would cause__________
a. tributary
b. Glaciation
8th Grade Final Exam Review
c. Chemical weathering
d. Mechanical (physical) weathering
7. The wearing away of rock material and moving of rock material by natural forces
Is known as____________
a. Deposition
b. Horizon
c. Erosion
d. Watershed
8. A smooth and rounded rock has most likely been shaped by___________
a. Running water
b. Freezing and cracking
c. Wind from sand
d. Moving ice
9. The ice of a glacier comes from__________
a. Freezing rain
b. Melting and refreezing snow
c. Freezing rivers
d. Compacted snow
10. Contour plowing and no-till farming are 2 examples of_________
a. Soil conservation practices
b. Recycling programs
c. Wildlife conservation programs
d. Methods of reducing toxic wastes
11. A crack in the earth’s crust is a_________
a. Contour interval
b. Fault
c. Earthquake
d. Fold
12. All igneous rocks are formed from___________
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a. Wind and weather
b. Sand and sediment
c. Lava and magma
d. Heat and pressure
13. Metamorphic rocks form by____________ (hint: think “metamorphosis”)
a. Lava and magma
b. Water, wind and ice
c. Burial and cementing
d. Existing rocks that have been changed by heat & pressure
14. The magnitude of an earthquake is measured by_________
a. The Richter scale
b. The magma scale
c. The Mohs scale
d. The fault scale
15. Earthquakes are caused by the movement along a__________
a. Fracture
b.
Fold
c.
Fault
d. Mountain
16. An earthquake on the ocean floor will most likely cause a___________
a. Volcano
b. Hotspots
c. Shield cones
d. Tsunami
17. The liquid rock beneath the surface of the earth is called___________
a. Crust
b.
Magma
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8th Grade Final Exam Review
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c. Core
d. Lava
18. According to the continental thrift theory, South America and Africa were joined
At_________ (hint: visualize a world map)
a. The North Pole
b. South Pole
c. Mid Atlantic Ridge
d. Eurasia
19. Through the process of erosion, the Colorado River is responsible for creating___
a. The Grand Canyon
b. The Paterson Falls
c. Mount Rushmore
d. Mount Saint Helen
20. A structure made of materials from within the earth that build up around an opening in the earth’s
surface__________
a. Tsunamis
b. Earthquake
c. Volcano
d. Hurricane
21. An educated guess is also known as_________
a. Theory
b. Control
c. Hypothesis
d. Experiment
22. Based on data from an experiment, a scientist makes the statement that glass
Absorbs light. This statement is an example of_________
a. Theory
b. Conclusion
8th Grade Final Exam Review
c. Control
d. Prediction
23. The most basic unit of life is the_________
a. Nucleus
b. Bacteria
c. Cell
d. Mitochondria
24. Which of the following is found in plant cells but not animal cells?
a. Vacuole
b. Chloroplast
c. Cytoplasm
d. Cell membrane
25. One characteristic shared by all organisms on Earth is that they all need________
a. Energy
b. Light
c. Cold temperature
d. Oxygen
26. The control center of the cell is the________
a. Mitochondria
b. Cytoplasm
c. Cell wall
d. Nucleus
27. The function of the mitochondria is________
a. Control flow of materials
b. Release energy from food
c. Reproduction
d. Control cell’s activities
28. The jellylike material inside the cell is known as__________
a. Nucleoplasm
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8th Grade Final Exam Review
b. Vacuoles
c. DNA
d. Cytoplasm
29. The period of growth before cell division is__________
a. Interphase
b. Metaphase
c. Prophase
d. Telophase
30. During which phase of mitosis does the nuclear membrane disappear?
a. Anaphase
b. Prophase
c. Interphase
d. Metaphase
31. The reproduction of sex cells is known as_________
a. Mitosis
b. Telophase
c. Interphase
d. Meiosis
32. A human body cell has this number of chromosomes__________
a. 23
b. 42
c. 92
d. 46
33. As a result of meiosis each human sex cell has this number of chromosomes_____
a. 46
b. 23
c. 92
d. 17
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8th Grade Final Exam Review
34. The correct order for the phases of mitosis is__________
a. Ana, meta, pro, telo
b. Pro, ana, telo, meta
c. Pro, meta, ana, telo
d. Meta, pro, telo, ana
35. With regard to the levels of organization, tissues working together make up_____
a. Cells
b. Organ system
c. Organism
d. Organs
36. The control system made up of the brain, spinal cord and nerves is known as____
a. Digestive system
b. Endocrine system
c. Nervous system
d. Reproductive system
37. Another name for a nerve cell is a_________
a. Neuron
b. Dendrite
c. Axon
d. Cell body
38. A control system made up of gland is________
a. Nervous system
b. Reproductive system
c. Digestive system
d. Endocrine system
39. A fertilized egg cell is a________
a. Sperm cell
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8th Grade Final Exam Review
b. Zygotes
c. Body cell
d. Diploid cell
40. The main organ of the circulatory system is the__________
a. Brain
b. Heart
c. Stomach
d. Lungs
41. The largest part of the brain is the_________
a. Cerebellum
b. Medulla oblongata
c. Neuron
d. Cerebrum
42. The space/gap between two neurons unknown as a________
a. Reflex
b. Dendrite
c. Synapse
d. Axon
43. The adrenal glands are most likely to release hormones when a
person is feeling_________
a. Sleepy
b. Hungry
c. Excited
d. Calm
44. The chemicals that the endocrine glands produce are known as________
a. Hormones
b. Impulse
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8th Grade Final Exam Review
c. Thyroid
d. Reflex
45. The name of the tubes that carry blood away from the heart are________
a. Veins
b. Lungs
c. Vessels
d. Arteries
46. The function of the white blood cells is to________
a. Fight diseases
b. Clot blood
c. Carry oxygen
d. Carry food
47. The main function of the digestive system is to_________
a. Carry blood
b. Break down food
c. Produce hormones
d. Use energy
48. Digestion is completed in the___________
a. Stomach
b. Pancreas
c. Large intestine
d. Small intestine
49. The main organs of the respiratory system are the__________
a. Intestines
b. Nostrils
c. Eyes
d. Lungs
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8th Grade Final Exam Review
50. The gas that is inhaled during respiration is____________
a. 02
b. N
c. CO2
d. H2
51. The skeletal system provides___________
a. Nutrition
b. Shape and support
c. Energy
d. Impulses
52. Bones can function in the movement of the body mainly because the skeleton
Contains___________
a. Fibers
b. Nerves
c. Bands
d. Joints
53. The scientific study of heredity is_________
a. Punned Squares
b. Genetics
c. Genotype
d. Recessive
54. The father of genetics is_________
a. Albert Einstein
b. Gregory Mendel
c. Marie Curie
d. Neil Armstrong
55. A scientist would most likely study a Punnett Square to identify an organism’s ________
a. DNA
b. Body cells
c. Genotype
d. Sex chromosomes
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56. The sex chromosomes of a female are___________
a. XY
b. XX
c. YY
d. XYY
57. A mutation is a_________
a. Change in DNA
b. Body cell
c. Sex cell
d. Gene
58. Most sex linked traits are formed on the___________
a. Y chromosome
b. RNA
c. DNA
d. X chromosome
59. A scientist places a purebud white flowered plant with a plant that is purebred for red flowers. She
crosses another purebred white flowered plant with a plant that is purebred for yellow flowers. All of
the offspring have white flowers. Which flower color is a dominant trait?
a. Red
b. White
c. Yellow
d. Orange
60. In pea plants for height, tall is dominant over short. If a hybrid tall pea plant is crossed with a
purebred short pea plant, what is the ratio of tall to short? (hint: make a punnett square)
a. 3:1
b. 0:4
c. 4:0
d. 2:2
8th Grade Final Exam Review
61. A man using a long board to lift a tree slump is an example of what type of simple
machine?
a. Pulley
b. Wedge
c. Inclined plane
d. Lever
62. Which object in a group exerts the greatest gravitational force on the others?
a. The object that rotates the fastest
b. The object with the greatest mass
c. The object with the smallest mass
d. The object that is stationary
63. A solid is unlike a liquid in part because a solid has a definite__________
a. Shape
b. Mass
c. Color
d. Volume
64. In which of the substances do the molecules or atoms move the fastest?
a. Brick
b. Wooden block
c. Lemonade
d. Oxygen
65. The nucleus of an atom is made of__________
a. Electrons, protons
b. Neutrons, electrons
c. Neutrons, protons
d. Protons only
66. The smallest piece of matter is_________
a. Molecule
b. Atom
c. Element
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8th Grade Final Exam Review
d. Compound
67. Sound is produced by__________
a. Vibrations
b. Pressure
c. Heat
d. Electric current
68. The bending of light is known as_________
a. Reflection
b. Vibrations
c. Concave lens
d. Refraction
69. The force between two objects such as your feet rubbing against a carpet is known
as___________
a. Work
b. Centripetal force
c. Friction
d. Acceleration
70. When water changes from a gas to a liquid it is known as_________
a. Evaporation
b. Condensation
c. Sublimation
71. An object at rest will stay at rest because of___________
a. Gravity
b. Density
c. Friction
d. Inertia
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8th Grade Final Exam Review
72. The amount of matter in an object is its__________
a. Mass
b. Weight
c. Volume
d. Density
73. The unit of measure that force is measured in is_____________
a. Kelvin
b. Fahrenheit
c. Celsius
d. Newton
74. Electricity will pass through a copper wire because of______________
a. Inertia
b. Conduction
c. Convection
d. Force
75. For every action there is an___________
a. Force
b. Acceleration
c. Equal but opposite reaction
d. Velocity
76. A car moves 150 meters in 5 seconds what is the speed of the car?
a. 3m/sec
b. 30m/sec
c. 5m/sec
d. 150m/sec
77. _____ is the amount of matter possessed by an object.
a. Length
b. Mass
c. Temperature
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d. Volume
78. _____is the amount of space that an object occupies.
a. Length
b. Mass
c. Temperature
d. Volume
79. Mass is measured in _____.
a. Meters
b. Kilograms
c. Celsius
d. Liters
80. Volume is measured in _____.
a. Meters
b.
Kilograms
c. Celsius
d. Liters
Open Ended. (10 pts each) Choose 2 of the questions below to answer. Do not answer additional
questions; if you do only the first two answers will be counted.
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1. Discuss Isaac Newton’s Three Laws of Motion.
a. State Newton’s 1st law and provide an example of a real world application of the law. (hint:
inertia)
b. State Newton’s 2nd law and provide an example of a real world application of the law. (hint:
F=ma)
c. State Newton’s 3rd law and provide an example of a real world application of the law.
2. Compare and contrast the processes of mitosis and meiosis.
a. Explain the purpose of mitosis.
b. List the three major steps of the cell cycle and state what happens in each step.
c. How are the results of mitosis and meiosis different? (hint: How many cells are produced
during each process? What types of cells are produced in each process?)
3. In your own words, explain how the energy in fossil fuels originated from the sun. You may write
your answer in paragraph form or draw a diagram. If using a diagram, label and explain all of the
components drawn.
4. In paragraph form, explain the theory of continental drift. Be sure to include points a-c listed below.
a. Define/Explain continental drift.
b. How does plate tectonics factor into the continental drift theory?
c. Give two pieces of evidence to support the theory of continental drift and explain how they
support it.