The Shadow That Moved
Toby sets a stick in the yard. By lunch the shadow has gone somewhere else. Drag the Sun across the sky and find out why.
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The Puddle That Vanished
Toby draws a chalk ring around a puddle. By afternoon the puddle is gone. Run a fair test with two dishes and find out where the water went.
OpenThe Band That Sang
Toby hears a ruler hum by itself. Pluck a rubber band and find out what makes a high note and a low note.
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The Plant That Leaned
Poppy's bean plant keeps bending toward the window. Move the lamp and find out how a plant follows the light.
OpenRamp Race
Build a ramp. Race a toy car, a marble, a block and a ball. Measure how far each one goes.
OpenBoat Builder
Pick a boat shape and a material. Load on pennies one at a time and watch the waterline rise.
OpenCircuit Workshop
Snap a battery, a bulb and a switch together. Find out what lets electricity through.
OpenColor Mixer
Mix paint in a bowl. Mix light on a wall. Spin the color wheel and find out why they mix in opposite ways.
OpenPlant Garden
Four seeds. Four pots. Change the light, the water or the soil, then fast forward two weeks.
OpenSorting Bins
Six sorting rounds with everyday things. Float or sink. Living or not. Hot or cold. Magnetic or not.
OpenWeather and Sky
Make a cloud and watch it rain. Chase the Moon around the Earth. Read a shadow clock.
OpenSound Bottles
Tune eight glass bottles with water. Play real songs and watch the sound wave move.
OpenCreature Maker
Pick a habitat. Build an animal from parts. See how well it fits where it lives.
OpenNebula Maker
Paint a real nebula. Drag glowing gas, light baby stars, drop planets and launch comets.
OpenZoom Lens
Slide the lens over four painted scenes and find the tiny details hidden in each one.
OpenDinosaur Dig
Brush the dust off sleeping giants. Wake them up and rebuild their bones.
OpenCreek Through Time
Turn the big brass dial and travel through time at one creek bend. Find the animals.
OpenDaily Challenge
One small science challenge every day. Do it. Tap the button. Tell someone what you found.
OpenAstronomy Lab
A round room with a hole in the roof and the whole night sky in it.
OpenBiology Lab
A greenhouse with a pond in the middle. Everything in here is alive, or used to be.
OpenThe Archaeologist's Lab
A tent, a trench and a scientist who has been waiting all morning for a good question.
OpenKitchen Lab
Jars, bubbles, steam and a sunny window. Chemistry is mostly cooking with a notebook.
OpenEarth and Weather
A cabin, a creek and a canyon wall older than anything you have ever touched.
OpenMotion Workshop
Ramps, magnets, gears and kites. Everything in here moves.
OpenMath Lab
A round hall under a glass roof, with shapes floating overhead and numbers glowing on the floor.
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