Earth

Earth science runs on processes too big and too slow for a classroom: colliding plates, erupting volcanoes, a watershed's worth of moving water. These free interactives compress them to classroom size and speed, with worksheets and NGSS-aligned lesson plans built in.

Fold Mountain Builder

Squeeze layers of rock between colliding plates and watch a mountain range fold up in front of you.

NGSS MS-ESS2-2

Volcano Eruption Simulator

Build shield, cinder cone, strato and dome volcanoes, then set off eruptions and measure the fallout.

NGSS MS-ESS3-2

Earthquake Simulator

Shake buildings at different magnitudes and see which design choices keep a structure standing.

NGSS MS-ESS3-2

Exploring the Water Cycle

Light up each of ten water-cycle steps in a 3D landscape, then use sun, temperature, lake size and tree cover to change how many gallons move each week.

NGSS MS-ESS2-4

Seafloor Spreading & Magnetic Stripes

Watch new ocean floor form at a mid-ocean ridge, flip Earth's magnetic poles by hand or on their real schedule, and read the mirror-image stripes left behind.

NGSS MS-ESS2-3

Reading the Fossil Record

Dig through twelve real Colorado rock layers, brush the dirt off their fossils, and graph how life appeared, spread, died out, and grew more complex.

NGSS MS-LS4-1