Heat Flow 11.2

This polar bear lives where it is very cold. Its skin is black and that helps absorb heat. The polar bear also has thick layers of fat called blubber.

What is this blubber used for?

• 
  It helps the polar bear's feet grip onto the ice.

• It insulates and keeps the polar bear warm.

• Females use the fat to feed the baby polar bears.

• Only males have fat and it is used to attract a mate.

Trent went skiing with his family. His mom and dad made him put on many different layers of clothing so that he would be warm while playing out in the snow.

What did the layers of clothing act as?

• conductor

• friction

• 
  insulation

• radiation

Greg is making some soup for lunch. He wants to leave the hot pot of soup on the stove and let everyone serve themselves.

What type of spoon should Greg avoid placing in the soup so that no hands get burned?

• 
  metal spoon

• plastic spoon

• rubber spoon

• wooden spoon

Peter's mom is cooking brownies in a pan in the oven. Which pan should she choose if she wants the pan that will heat up and cool the quickest?

• metal pan

• glass pan

• ceramic pan

• plastic pan

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Jenny wants to take yogurt to school. Her mom tells her that she needs to pack it in an insulated lunch box. What will the insulated lunch box do to the yogurt?

• It will freeze it.

• 
  It will warm it up.

• It will thaw it out.

• 
  It will keep it cool

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4