On the bench · not built yet
Shadow Clock
Track a stick's shadow through a day and a year; explain the pattern with Earth's rotation and orbit.
Nearby on the shelf
Grade 5 · Science · Explorer
Particle Zoom
Zoom into sugar dissolving and air in a balloon; particles too small to see explain what happens.
Grade 5 · Science · MysteryMystery Powders
Identify unknown powders by testing with water, vinegar and iodine; mixing some makes something new.
Grade 5 · Science · LabDrop Zone
Drop objects on Earth, the Moon and Mars; gravity always pulls down, toward the center.