COOL SCIENCE is HOT!

Matter has SOLID, LIQUID or GAS/VAPOR forms

Solid water is ICE, water VAPOR is STEAM

Water boils at 212° F/100° C. That’s HOT

Water freezes at 32°F/0° C. That’s COOL.

Air is 80% NITROGEN, 20% OXYGEN

Argon and Carbon Dioxide (CO₂) also

GASES in air can be liquefied and frozen

(they cool by expanding)

Nitrogen boils at –321° F/-196° C. That’s COLD

At –321°F water freezes (FAST).

At –321°F atoms move slower and things are smaller.

At –321°F materials are harder and more brittle.

At –321°F magnets can be levitated by superconductivity.

At –321°F OXYGEN is LIQUID too.