Nina’s little universeA BIG BOOK OF LITTLE WONDERS
Pick a little adventurePlay at your own pace
FROM THE OUTSIDE TO THE CENTER

Peek inside a planet

Travel from the outside to the center. Choose a numbered layer to discover what this planet is made of.

EarthOutside → center

Match the numbers on the planet to the layers.

EXPLORE THE LAYERS
1

Crust

The thin, rocky layer we live on.

Look closely
The grainy pattern marks rock. Hot does not always mean liquid: Earth’s mantle is mostly solid.

Earth’s layers are shown as paper pieces. Their thicknesses are not to scale. Colors, textures, and thicknesses are teaching guides, not a view from a camera or a scale model.

Explore the science with NASA ↗
Grown-up controls · After the activity

Send this discovery to another family

Finished exploring together? Here’s a message ready to share with another grown-up.

Only the activity is shared. No children’s names, photos, or contact details.