All projects

54 projects for age 7 · page 5 of 5

Projects

Ages 4–12⏱ 45 min

Junk Robot

Design and imagination - planning a build from the parts you have.

Junk ModelArt & Design

Ages 5–11⏱ 60 min

Cardboard Marble Run

Gravity, slopes and speed - steeper ramps make the marble go faster.

Junk ModelEngineering & Building

Ages 4–9⏱ 40 min

Bottle-Top Volcano

A chemical reaction: an acid (vinegar) and a base (baking soda) make carbon dioxide gas, which is the fizzy foam.

Kitchen Science

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Ages 6–12⏱ 15 min

Naked (Rubber) Egg

Vinegar (an acid) dissolves the hard shell, leaving the bendy membrane - and the egg swells as water moves in (osmosis).

Kitchen Science

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Ages 6–12⏱ 40 min

Red Cabbage Colour Changer

Red cabbage juice is a natural indicator - it turns pink in acids and blue/green in alkalis.

Kitchen Science

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Ages 7–12⏱ 30 min

Balloon Hovercraft

A cushion of escaping air reduces friction, so the disc glides almost freely.

Kitchen ScienceEngineering & Building