Invisible: Gravity

Let go of an apple. Watch a moon orbit. The same invisible force is at work.

Invisible: Gravity is a real-photo physics picture book for ages 4–6 exploring falling, orbiting, mass, weight, and the force that shapes motion from the ground beneath us to objects in space.

The Invisible series uses real evidence, observable examples, and simple experiments to help children notice forces they cannot see directly.

Invisible, Book 3 of 3.