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Astronaut Helmet
Making a wearable helmet from a box teaches you why real astronauts need a sealed helmet to breathe and stay safe in space, where there is no air.
🔒 PremiumBalloon Hovercraft
A cushion of escaping air reduces friction, so the disc glides almost freely.
Bean in a Jar
Seeds sprout roots and shoots — you can watch a plant begin, up close.
Binary Code Name Bracelet
Threading two colours of bead in patterns of eight shows how computers store every letter as a secret code of just two symbols. Children discover that ones and zeros can spell out anything, including their own name.
Blow-Straw Painting
Moving air pushes the runny paint into branching, spidery shapes.
Bottle-Top Volcano
A chemical reaction: an acid (vinegar) and a base (baking soda) make carbon dioxide gas, which is the fizzy foam.
🔒 PremiumBread in a Bag
Yeast is alive — it eats sugar and burps gas that makes the dough rise.
Cardboard Gravity Coin Sorter
Children discover physical sorting algorithms by using gravity and cut-out sizes to separate mixed coins automatically.
Cardboard Marble Run
Gravity, slopes and speed - steeper ramps make the marble go faster.
🔒 PremiumCardboard-Loom Woven Mat
Weaving over-and-under on a homemade loom teaches the basic structure of all woven cloth and builds rhythm, focus and fine motor control.
🔒 PremiumEgg-Drop Challenge
Cushioning and slowing a fall (forces and impact) to protect a fragile object.
Fizzy Sherbet Sweets
Citric acid and baking soda are dry until they hit the wet on your tongue — then they fizz (that same gas reaction!).