Heat Nye

Anything with molecules has heat. The colder the matter is the __________ the molecules move.

• faster

• slower

Tags

NGSS.MS-PS1-4

Heat moves in 3 ways: conduction, convection, and radiation.

• true

• false

Heat rises.

• true

• false

Tags

NGSS.MS-PS1-4

When testing different material to see which is a better conductor: butter was placed on a metal knife, a plastic knife and a wooden popsicle stick, then a sugar cube was placed on top of the butter of each. The butter melts off the fastest from the better heat conductor. Which one was a better conductor?

• wooden popsicle stick

• plastic knife

• metal knife

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Smoke stays low.

• true

• false

How do coats keep you warm?

• The air molecules are close together and vibrating fast causing the heat to stay inside instead of the molecules moving outside of the coat to the cold air.

• The coat has air pockets keeping the molecules further apart from each other. Since the molecules are far apart it makes it hard for the molecules to touch, keeping the heat inside instead of transferring the heat out of the coat to the cold air.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

An example of radiated heat is:

• heating a hot dog on a frying pan

• the sun’s rays reaching our skin

• burning your hand on a hot stove

• . cooking a hot dog in boiling water

A dryer heats clothes to dry by using ______.

• sending heat waves through radiation to the clothes.

• forcing hot air over the clothes through forced convection.

• direct contact with the heat element to the clothes through conduction.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-5

The heat from the oven reflects on the metal pan heating it up, the brownies touching the heated metal pan bakes the brownies through _______.

• radiation

• convection

• conduction

When baking brownies in a glass pan, the heat from the oven __________ through the clear glass, baking the brownies through ____________.

• conducts heat, conduction

• radiates, radiation

• rotates, convection

Tags

NGSS.MS-PS3-5