Worksheets8th Grade Science - Final Exam accommodated
Total questions: 40
Worksheet time: 20mins
Name
Class
Date
1.
1. What matter is cycled in the atmosphere?
a)
A. birds
b)
B. solar energy
c)
C. air particles
2.
2. Which of the following is NOT true about the geosphere?
a)
A.It is made up entirely of solid material.
b)
B. It contains iron, magnesium, and oxygen.
c)
C. It is made up of the crust, mantle, and core.
3.
3. If a foam block floats in a container of syrup but a lead weight sinks, which is the LEAST dense material?
a)
A. foam
b)
B. syrup
c)
C. The materials are equally dense.
4.
4. When objects transfer energy through touch, that process is called _______.
a)
A. radiation
b)
B. conduction
c)
C. densification
5.
5. Changes to Earth's surface happen at ______ time scales and _______ spatial scales.
a)
A. all; all
b)
B. only slow; only small
c)
C. only fast; large and small
6.
6. The process of _______ occurs when large landmasses move, like when Pangea broke apart.
a)
A. plate shift
b)
B. continental drift
c)
C. landmass movement
7.
7. What is the lithosphere?
a)
A. another name for Earth's crust
b)
B. the outer, rigid part of the mantle and the crust combined
c)
C. the part of the core that is the closest to the mantle where it is the coolest
8.
8. The Pacific ______________ is a region of heavy volcano and earthquake activity.
a)
A. Lava Circuit
b)
B. Ring of Fire
c)
C. Circle of Volcanoes
9.
9. Tectonic plate motion is mainly caused by _______________.
a)
A. convection cells in the mantle
b)
B. the shaking caused by earthquakes
c)
C. the pull of the moon on the oceans
10.
10. Which word describes the process by which a collision between two tectonic plates forces the denser plate under the less dense plate?
a)
A. submarine
b)
B. substitute
c)
C. subduction
11.
11. Which of the following is NOT evidence to support the Continental Drift Theory?
a)
A. The shape of the continents fit together (like a puzzle).
b)
B. Similar fossils have been found on several different continents.
c)
C. Penguins live in Antarctica.
12.
12. A trench forms at what kind of boundary?
a)
A. convergent
b)
B. divergent
c)
C. spreading
13.
13. Roughly how old is the Earth?
a)
A. thousands of years old
b)
B. millions of years old
c)
C. billions of years old
14.
14. Why is the Grand Canyon a good place to study rock layers?
a)
A. It is older than any other location.
b)
B. It looks exactly the same as it did when it was created.
c)
C. Many rock layers have been uncovered by river erosion.
15.
15. According to the law of _____________________, layer M is younger than layer B.
a)
A. Superwoman
b)
B. Superposition
c)
C. Superintendent
16.
16. Which rock layer is the YOUNGEST?
a)
A. Layer I
b)
B. Layer H
c)
C. Layer R
17.
17. Fossils of organisms that lived in widespread areas over a short period of geologic time are called ________.
a)
A. index fossils
b)
B. common specimens
c)
C. indicator remains
18.
18. Determining the order of events and the relative age of rocks by examining the position of rocks in a sequence is called _____________.
a)
A. absolute dating
b)
B. relative dating
c)
C. radiocarbon dating
19.
19. Determining the exact age of a rock by measuring the number of radioactive uranium atoms that remain is called ______________________.
a)
A. absolute dating
b)
B. relative dating
c)
C. one-and-only dating
20.
21. A group of individuals of the same species that live and reproduce in the same place is called a(n) ___________.
a)
A. community
b)
B. population
c)
C. organism
21.
22. True or False? Individuals in a population are all identical.
a)
A. True
b)
B. False
22.
23. When individuals with certain inherited traits are more likely to survive and reproduce than those with less favorable traits, ____________________ occurs.
a)
A. genetic selection
b)
B. natural selection
c)
C. favored survival
23.
24. An explanation or model based on observation and evidence that is used to explain a natural phenomenon is called a(n) ________________________.
a)
A. conclusion
b)
B. theory
c)
C. hypothesis
24.
25. Animals may have what type of adaptations to help them survive?
a)
A. obtaining food
b)
B. reproduce
c)
C. protection
d)
D. all of the above
25.
26. A chart that shows all the possible combinations of alleles that can result from a genetic cross.
a)
A. Probability Square
b)
B. Punnett Square
c)
C. Codominance Square
26.
27. All mutations in DNA are harmful.
a)
A. True
b)
B. False
27.
28. What is the relationship between DNA and proteins?
a)
A. The code found in a protein determines a DNA molecule's sequence.
b)
B. DNA is made up of protein molecules.
c)
C. DNA contains the codes for proteins.
28.
29. Which of the following objects could be used to model the structure of a DNA molecule?
a)
A. a snowflake
b)
B. a twisted ladder
c)
C. a 3-dimensional cube
29.
30. How do genetic mutations (change in DNA) arise?
a)
A. They occur naturally during cell division.
b)
B. They are caused by factors in the environment.
c)
C. Both A and B.
d)
D. None of the above.
30.
31. Michael is doing an experiment. He wants to drop a bowling ball and a stuffed bear out the window of a tall building. Under what conditions would they have the same acceleration?
a)
A. If they had the same weight.
b)
B. If there was no air resistance.
c)
C. If there was no gravitational force.
31.
32. In science, force refers to ________________.
a)
A. the way objects interact
b)
B. a push or pull on an object
c)
C. a description of an object's movement
32.
33. Different strengths of forces can be modeled using _____________.
a)
A. arrows of different lengths
b)
B. scales that measure different forces
c)
C. a table of different numerical values
33.
34. Diane and Ben are at the market picking up some groceries. They are both pushing the shopping cart in the same direction. Diane is pushing with 43 N of force. Ben is pushing with 32 N of force. What is the net force of the shopping cart?
a)
A. 11 N
b)
B. 43 N
c)
C. 75 N
34.
35. Jean is sitting at the top of a slide, about to slide down. What form(s) of energy are MOST relevant to his position?
a)
A. kinetic energy
b)
B. potential energy
c)
C. both potential and kinetic energy
35.
36. What is the speed of a ball that moves 20 meters in 4 seconds?
a)
A. 4 m/s
b)
B. 5 m/s
c)
C. 16 m/s
36.
37. The inner planets are ___________ and located _____________ the sun.
a)
A. relatively small; further away from
b)
B. relatively small; closer to
c)
C. relatively large; further away from
37.
38. The motion of an object around another object. (Earth moving around the sun).
a)
A. Rotation
b)
B. Revolution
c)
C. Axis
38.
39. The movement (turning) of the Earth on its axis.
a)
A. Rotation
b)
B. Revolution
c)
C. Equator
39.
40. Which is the largest in actual size?
a)
A. Asteroid
b)
B. Saturn
c)
C. Galaxy
40.
Did you choose the read aloud option?
a)
Yes
b)
No
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