7th Grade Science Final Exam Practice
19 Questions
| Total Attempts: 253
Questions and Answers
- 1.When do scientists use models and what are their limitations?
- 2.What kind of boundary is the mid-Atlantic ridge?
- A.
Convergent
- B.
Surface
- C.
Divergent
- D.
Crust
- 3.True or False.Genetic variation is very important for the survival of a species.
- A.
True
- B.
False
- 4.Who proposed the theory on natural selection over 100 years ago?
- 5.Animal waste contributes to water pollution.
- A.
True
- B.
False
- 6.Overlapping food chains that exist within an ecosystem are called ______________?
- A.
Food chains
- B.
Food webs
- C.
Primary consumers
- D.
Primary producers
- 7.Fossils are found in what type of rock
- A.
Metamorphic
- B.
Igneous
- C.
Sedimentary
- D.
Option 4
- 8.The ______ _________ shows how rock is constantly changing form, very slowly over geologic time.
- 9.When energy transformations occur, some energy is always lost as ______________.
- 10.As you go deeper into the earth, the temperature and pressure of the rock and metal _____________.
- 11._____________ is the measure of heat energy of particles in a substance.
- 12.As heat energy goes down, the temperature goes up.
- A.
True
- B.
False
- 13.Thermal energy flows from hot to cold until _______________.
- 14.Light energy is also known as _____________ .
- A.
Thermal energy
- B.
Radiant energy
- C.
Potential energy
- D.
Kinetic energy
- 15.The change in state from a liquid to a gas is called vaporization.
- A.
True
- B.
False
- 16.The arrows in a food chain always point in the opposite direction that energy (food) is moving.
- A.
True
- B.
False
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