About Matter Lab
Everything around us is made of tiny particles, and how they move decides whether something is a solid, a liquid or a gas. Matter Lab starts by sorting everyday things, including tricky ones: honey is a slow liquid, sand is made of tiny solid grains, and the bubbles in a fizzy drink are a gas.
Heat & cool names the changes children see every day: ice cream melting, a puddle freezing, wet clothes drying, breath fogging a cold window, and even lava freezing into rock. In the Particles round they move a thermometer slider and watch water's particles lock into an ice block, slide around as a liquid, or zoom apart as a gas, then find the exact freezing and boiling points.
Undo it? separates changes of state, which can be reversed (melting chocolate, freezing juice, dissolving salt), from changes that make a new substance and can't be undone (baking a cake, burning wood, cooking an egg, rust).
Best for ages 6–11
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