Heat!

Water freezes and boils at what temperatures on the Celsius scale?

• 0 and 100

• 32 and 212

• 0 and 1000

• a little and a lot

What is thermal energy?

• sound

• chemical reactions

• total energy of particles

• magnets

Why doesn't the sun warm up a pond very much on a cold day?

• The fish conduct all of the heat

• Most of the suns energy is reflected

• The water is too dirty

• There is no convection current

How could you make a marshmallow smaller?

• Heat it in the oven

• Cool it down in the fridge

Which is an example of radiant energy?

• A fire

• Dropping a ball

• An egg cooking on a pan

• Warm air rising

What is heat?

• Temperature

• Electricity

• Chemical energy

• Flow of energy from warmer matter to cooler matter

In order for conduction to happen the two objects...

• must be touching

• must be close to each other

• must have a gas inbetween them

• must have light

When heat is transferrered through conduction which direction does the heat flow?

• from colder to warmer

• from slower moving particles to faster moving particles

• from warmer matter to colder matter

• up

How does heat transfer through a conductor?

• slowly

• fast and easily

• it doesn't

• down

Which is not an example of an insulator

• Wood

• Plastic

• Rubber

• Copper wire