The Earth's interior is layered into crust, mantle, and core.

In 1924, a scientist attempted to transmit sound to plants to study their response.

Fact #993 · Science

The Earth's atmosphere contains trace gases like argon.

Fact #288 · Science

Lightning can heat air hotter than the surface of the Sun.

Fact #1807 · Science

Some prehistoric creatures were larger than modern equivalents.

Fact #733 · Science

The Earth's inner core is solid despite extreme heat.

Fact #217 · Science

Electricity involves the movement of charged particles.

Fact #29 · Science

The door-in-the-face technique uses large requests to gain smaller agreements.

Fact #1502 · Science

The Ames room illusion distorts perceived size and distance.

Fact #1490 · Science