Discover how both poles of a powerful magnet repel a grape.

Iron filings trace out magnetic field lines in three dimensions.

Copper coils become electromagnetic swings.

Magnetic lines stop here.

Ding dong! This investigation shows how your doorbell works.

Listen to the sound of rain falling—anytime, anywhere.

If you blow harder, will it go farther?

Investigate sea level rise with this model of continents and oceans.

Magnets can affect things that aren’t magnetic.

Reflect on the ins and outs of mirrors.

What you see is often affected by what you expect to see.

Hear the magnet!