Unit 15 Ch 2

What is this chapter about?

• metal

• plastic

• paper

• wood

How does a physical change make things look?

• same

• different

• frozen

• smaller

What happens to the aluminum shreds in the furnace?

• they freeze

• they float

• they melt

• they disappear

What happens to oil to make heat?

• it tears

• it freezes

• it burns

• it evaporates

What is important to know about this chapter?

• The furnace is very cold.

• The aluminum is recycled into something new.

• Mr. Smith is the recycling plant manager.

• The aluminum is painted.

What is an example of a physical change?

• crushing

• burning

• running

What is used to melt the aluminum shreds?

• air

• cans

• heat

What does burning oil make?

• metal

• gas

• paper

What is an example of a chemical change?

• burning wood

• ripping paper

• drinking water

How do you know matter changes when aluminum is recycled?

• Cans and pots are made of aluminum.

• Matter doesn’t change.

• The aluminum changes from a solid to a liquid.