Melting. Essential Questions: What is melting? How is melting related to the water cycle?

Melting

Essential Questions:

• What is melting?

• How is melting related to the water cycle?

Words to Know

Solid

state of matter which holds its shape

Liquid

state of matter which takes on the shape of

its container

Melt

when matter changes from a solid state to a liquid state after being

exposed to heat

Melting Point

the temperature at which a substance melts

(insert thermometer graphic)

Your morning view

What happens next when the temperature goes up?

The sun comes out and the temperature goes up…

Melting in Action

Melting Points

• Ice: 0 degrees C

• Popsicles: 0 degrees C

• Chocolate: 35 degrees C

• Butter: 50 degrees C

• Candle wax: 60 degrees C

• Aluminum: 60 degrees C

What does this have to do with the water cycle?

• The ice caps in Antarctica are melting.

• When the ice caps which are solid melt, they provide water, which is a liquid for the water cycle.

Test your knowledge!

At what temperature does ice melt?

A: Anything over 0 degrees C

B: Anything under 0 degrees C

C: Anything over 100 degrees C

D: Anything under 100 degrees C

Test your knowledge!

Melting involves a substance changing from a _________ to a ___________.

A: liquid to a solid

B: gas to a liquid

C: solid to a liquid

D: solid to a gas