Grade 8 Midterm Review: Question Preview (ID: 5161)

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If you took all the atoms out of a chair, what would be left?
a) There would be nothing left of the chair
b) Only a pool of liquid would be left on the floor
c) The chair would be exactly the same as it was before
d) The chair would still be there, but it would weigh less

How many states of matter can be found on Earth?
a) 5
b) 4
c) 3
d) 2

Most matter in the universe exists in the:
a) plasma state
b) solid
c) liquid
d) none of the above

All matter is made up of particles called:
a) Atoms and molecules
b) Electrons, protons, and neutrons
c) Electromagnetic particles
d) Solids, liquids and gases

The temperature of an object is related to the:
a) Number of atoms and molecules it has
b) Type of matter it is
c) Temperature of the atmosphere
d) The speed of particles motion

Changing the state of matter is usually a result of:
a) You can’t change states of matter
b) Changing the temperature or surrounding pressure of a substance
c) Changing the atoms of the matter
d) Mixing two different states of matter together

Changing matter from a solid to a liquid is called
a) melting
b) boiling
c) freezing
d) condensation

What is required to change a solid to a liquid?
a) Nothing
b) Condensation
c) Freezing
d) Energy

Which two temperatures are the same?
a) The freezing point and the melting point
b) The condensation point and the melting point
c) The evaporation point and the sublimation point
d) None of the above

If a net force is applied in the same direction an object is moving, it will cause the object to:
a) Slow Down
b) Speed Up
c) Remain constant
d) None of the above

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