ES CHAPTER 2: - MATTER, FORCES, AND ENERGY

Scientists use unseen matter in the universe called __________ to explain its structure.

• dark matter

• white noise

• solar wind

• neutron stars

Matter occupies __________ and has __________.

• space, mass

• air, color

• light, energy

• sound, taste

List the four states of matter.

• solid, liquid, gas, plasma

• solid, water, air, fire

• earth, water, air, fire

• solid, liquid, vapor, mist

A material’s freezing and melting points are the same __________.

• temperature

• pressure

• volume

• density

Deposition is the change of state from a(n) __________ directly to a(n) __________.

• gas, solid

• solid, gas

• liquid, solid

• liquid, gas

The pull of gravity on an object’s mass is its __________.

• weight

• volume

• temperature

• density

Identify the following description as a contact force or field force.

crushing a soft drink can

• Contact force

• Field force

Identify the following descriptions as a contact force (C) or field force (F).

wind erosion of soil

• (C) Contact force

• (F) Field force

Identify the following description as a contact force or field force.

the pull of Jupiter on its moons

• (C) Contact force

• (F) Field force

the force that causes a compass needle to point north

• C) Contact force

• F) Field force