Science P4 (Heat flow, gain, and loss)

Heat flows from _________ to _________ objects.

• hotter ... hotter

• colder ... colder

• hotter ... colder

• colder ... hotter

The spoon placed in a cup of hot water becomes hot after sometime because ___________.

• the spoon loses heat to the hot water

• the spoon gains heat from the hot water

• heat flows from the spoon to the water

• heat flow from the surrounding to the spoon

Tags

NGSS.4-PS3-2

Adhiya placed a bottle of cold milk into a cup of hot water. The cold milk becomes hotter after a while. Which one of the following explain this?

• The cup loses heat to the hot water.

• The bottle of cold milk gains heat from the cup.

• The bottle of cold milk loses heat to the hot water.

• The bottle of cold milk gains heat from the hot water.

Tags

NGSS.4-PS3-2

Look at the diagram.

Shakeel needs help to separate two glasses, A (inside) and B (outside), which are stuck together. What is the best way to separate them?

• Pour hot water into A and put B in a basin of hot water.

• Pour hot water into A and put B in a basin of cold water.

• Pour cold water into A and put B in a basin of cold water.

• Pour cold water into A and put B in a basin of hot water.

Rahma got an ice cream from her mom. The ice cream melts under the sun because the ice cream ___________.

• gains heat from the sun

• loses heat to the sun

• cannot withstand the heat from the sun

• produce too much heat

Tags

NGSS.4-PS3-2

When we lose too much heat to the surroundings, we feel _______.

• cold

• hot

When we lose too little heat or gain too much heat from our surroundings, we feel ________.

• cold

• hot

Choose 3 boxes below.

Which are the following effects of heat gain or loss?

• Cause matter to change its state.

• Cause matter to catch fire.

• Cause matter cannot expand.

• Cause matter cannot contract.

• Cause matter to expand or contract.

Heat loss causes matter to ________. Heat gain causes matter to ________.

• contract . expand

• expand . contract

• stay . change

• change . stay

Tags

NGSS.4-PS3-2

NGSS.5-PS1-2

In the practice to open the tight lid of a container. If you want to open the lid of container, but it so hard. It cannot be opened, what should you do?

• Put the lid of a container into cold water and wait for a while.

• Put the lid of a container into warm water and wait for a while.