Unit 2 Properties of Matter

All elements are composed of extremely small particles called

• atoms
• elements
• compounds
• mixtures

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Abigail noticed that when she placed a metal spoon in a hot cup of tea, the spoon became warm. This is an example of the movement of energy from a warmer object to a cooler object.

• heat

• thermal energy

• temperature

• kinetic energy

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What is the total energy of all of the particles in an object?

• Thermal Energy

• Heat

• Temperature

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When Anika heats a pot of water on the stove, the speed of the water particles...

• is unchanged

• increases

• decreases

• goes up and down

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When things are cold, the particles are moving...

• Fast
• Slow
• They are not moving
• They are moving fast and slow

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The change in which ice absorbs energy and melts is a(n)

• exothermic change.
• endothermic change.

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Fireworks exploding in the sky giving off light and releasing energy are an example of a(n)

• exothermic change.
• endothermic change.

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The quantitative measurement of how fast particles of matter are moving.

• Temperature
• Thermal Energy
• Kinetic Energy
• Heat

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Which of the following is considered to be a pure substance?

• water (H2O)
• Air
• Salt water
• Smoke

How do liquid water, ice, and water vapor differ from each other?

• They are different states of matter.
• They are made of different kinds of molecules.
• They are different compounds.
• They are made of different kinds of atoms.

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