Physics
Pressure, motion, heat, electricity. The invisible pushes and pulls, made visible.
18 lessons
Air pressure and implosions
The atmosphere presses on everything with about fifteen pounds per square inch. Take the air out of a can and watch.
Buy alone for $6
14 lessons
The whoosh bottle
Alcohol vapor in a big jug and one match. Gas laws, reaction rates, and balloons that get eaten.
Buy alone for $6
15 lessons
Electricity and magnetism
Static that lifts foil, motors built from a battery and a wire, and magnets that push on copper.
Buy alone for $6
11 lessons
Momentum and motion
Slinkies that hover, Newton's cradle with seven balls, and a pendulum that draws patterns in the air.
Buy alone for $6
9 lessons
Heat and temperature
Water that stays liquid below freezing, drops that skate on a hot pan, and why metal feels colder than wood.
Included in membership
2 lessons
Light and sound
A paper cup that out-shouts a real speaker, and glass that vanishes in cooking oil.
Included in membership