Physical Science
What happens to acceleration if force increases?
Acceleration increases
Give an example of artificial selection.
Dog breeding or selecting crops with desired traits.
What is weathering?
Breaking down of rock.
Why are index fossils useful?
They help determine the relative age of rock layers.
What determines how a star will evolve?
Its mass
What is Newton’s Third Law?
For every action, there is an equal and opposite reaction.
What is a GMO (genetically modified organism)?
An organism whose DNA has been changed by humans.
What instrument is used to measure earthquakes?
A seismograph
What is relative dating?
Determining whether something is older or younger compared to something else.
What happens to low-mass stars after the main sequence?
They become red giants.
What is gravity?
A force that pulls objects toward each other.
Why are GMOs created?
To improve traits like resistance to pests or faster growth.
What layer of Earth is made mostly of liquid iron and nickel?
the outer core
What is absolute dating?
Determining the exact age of a fossil using radioactive decay.
What happens to high-mass stars after the main sequence?
They become supergiants.
What is friction?
A force that opposes motion between surfaces.
What is selective breeding?
Breeding organisms to produce desired traits.
What scale is used to measure the magnitude (strength) of an earthquake?
Richter scale
What is a cast fossil?
A fossil formed when a mold is filled with minerals.
What is a red giant?
A star that expands and cools after using up hydrogen.
What is potential energy?
Stored energy based on position.
How is artificial selection different from natural selection?
Humans control artificial selection; nature controls natural selection.
What is the rigid outer layer of Earth made of the crust and upper mantle called?
The lithosphere
What is the Law of Superposition?
Older rock layers are found below younger layers.
What is a supernova?
A massive explosion of a dying high-mass star.