Science grade 4 quiz 2

What is the earth's main source of heat?

• the moon

• the sun

• the ocean

• forests

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Which of these is a better conductor?

• 
• 

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Which of these is a better insulator?

• 
• 

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Which of these is a measure of how hot or cold something is?

• temperature

• radiation

• insulation

• friction

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The tool used to measure temperature is called a/an

• insulator

• conductor

• thermometer

• radiation

Heat is the movement of ______.

• radiation
• thermal energy
• cold
• fire

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Thermal energy ALWAYS moves from _____ to _____.

• solid to liquid
• ice to water
• hot to cold
• solid to gas

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Heat moves by ______ when it travels from one solid to another solid.

• radiation
• convection
• thermal energy
• conduction

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The way heat moves in liquids and gases is called _______.

• convection
• radiation
• conduction
• temperature

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The flow of thermal energy from warmer objects to cooler objects is called ______.

• heat
• movement
• friction
• energy

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