Is any substance that has space and has mass and takes up space by having volume. It exists in various states known as solid, liquid and gas.

• air

• matter

• heat

• science

Which of the following is the correct arrangement of liquid particles?

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Which of the following is the correct arrangement of solid particles?

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Is a device that measures temperature.

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What is the boiling point of water?

• 50 °C

• 60 °C

• 99 °C

• 100 °C

Is the tendency of matter to change in volume and decreasing its size in response to temperature.

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All solids, liquids, and gases are made up of small particles such as atoms and molecules.

• True

• False

Heat is transferred to an object.

• Yes

• No

Heat flows from warmer objects to cooler objects.

• Yes

• No

A __________ happens when materials or objects are in direct contact with each other. The molecules in the warmer object vibrate faster than the ones in the cooler object.

• Radiation

• Convection

• Conduction

• Heat