Bill Nye - States of Matter

What is the Universe made of?

• Matter

• Rocks

• Electrons

The three phases of matter are

(check all that apply)

• Atoms

• solid

• gas

• liquid

Molten/melted/liquid steel, and solid steel are different because of ?

• they are different elements

• the particles are moving at different speeds

• one is a gas

Getting things to change phases takes ?

• energy and force

• matter

• humans

If you want to turn liquid into a solid you have to take what away?

• salt

• energy

• pressure

Where does the energy go from the things you put into the freezer?

• The freezer stores the heat inside the freezer.

• The freezer removes it and releases it into the air around it.  It pumps the heat our into the room.

When consistently adding heat, a solid turns into a liquid into a ?

• gas

• solid

what percentage of our air is Nitrogen?

• 55%

• 78%

• 25%

• 0%

what happens when molecules slow down?

• They move farther apart.

• They move closer together.

What happens to the items after they come out of the liquid Nitrogen?

• They melt.

• They break or shatter easily.