AstroDrop

Explore the physics of dropping objects in space with AstroDrop.

v1.0.0

1D Collision

Investigate conservation of momentum and energy in one-dimensional collisions.

v1.1.2

Gear Builder

Build and connect gears to explore gear ratios, teeth counts, and rotational speed.

v1.0.0

Inheritance

Explore how traits are inherited across generations through Mendelian genetics.

v1.3.2

Light and Shadows

Position a light source and objects to explore how shadow size and shape change with distance.

v1.1.0

Wave Characteristics

Explore wave properties including amplitude, wavelength, frequency, and period using real NOAA buoy data.

v1.0.0

Beak & Seed Island

Watch Darwin's finches evolve on an island as drought reshapes which beak types survive and reproduce.

v0.9.4-alpha

Carbon Cycle

Trace a carbon atom through Earth's carbon reservoirs and discover the fast and slow paths of the carbon cycle.

v0.1.0-beta

A Journey into Deep Space

Explore how the Sun's apparent brightness changes as you travel through the solar system and beyond.

v1.0.0-gamma

Domain Discovery

Explore extreme and common environments, collect organisms, and examine their cells to uncover the pattern connecting environment to cellular organization.

v0.4.0-alpha

Hypotenuse Explorer

Explore the relationship between the sides of a right triangle across real-world scenarios — ladders, kites, slides, roofs, and ramps.

v1.0.4-beta

What's that Fizz?

Investigate conservation of mass during a baking soda and vinegar reaction in open and closed systems.

v1.0.2-alpha

Natural Selection

Simulate how natural selection drives population change across generations.

v1.0.2-alpha

Spring Energy

Explore the energy dynamics of a spring-mass oscillator with adjustable damping.

v1.0.2-alpha

Water Cycle Terrarium

An interactive sealed terrarium showing the water cycle in an isometric 3D view. Heat from the lamp drives evaporation, condensation forms clouds, and rain refills the basin.

v1.0.0-alpha.18

Safe Travels

Act as a travel planner — read each week's expected weather, decide which place to avoid (and why), then pick where you'd like to go.

v1.0.1-gamma

Written in Stone

Excavate fossils from Badlands rock layers and identify evidence of how Earth's landscape has changed over time.

v0.1.1-beta

Phet Io Wrapper

phet-io-wrapper.html

Vernier Wrapper

vernier-wrapper.html