Heat Grade 4

What is not a source of heat

• sun

• wood

• oven

• stove

• burning charcoal

Which of below is the measurement of temperature that is used by the scientist?

• Kelvin

• Fahrenheit

• Celsius

• Centigrade

What instrument is used to measure temperature?

• thermometer

• thermalmeter

• anemometer

• speedometer

Where does heat travel?

• from colder to hotter place

• it does not travel

• from hotter to colder place

• anywhere it wants

The temperature of frozen water is ...

• 100 degree celsius

• 37 degree celsius

• 20 degree celsius

• 0 degree celsius

The picture shows a pot of water heating on a stove top. Which statement explains what happens to the water in the pot?

• Heat energy travels from the water in the pot to the burner.

• Heat energy travels from the burner to the pot and the water.

Ray holds an ice cube in his hand. After some time passes, the ice cube begins to melt. Which word describes the process of heat transfer?

• ice cube has heat gain

• ice cube has heat loss

• ice cube has both heat gain and heat loss

Energy can flow between objects as heat. Look closely at the picture.

What is one way heat is flowing in the picture?

• from the fire to the pot

• from the person's hand to the pot

• from the person's hand to the fire

The temperature of human body is ...

• 100 degree celsius

• 37 degree celsius

• 20 degree celsius

• 0 degree celsius

Without the sun's heat, what would happen to earth?

• aliens would invade

• the earth would explode

• it would be too cold to survive