Junk Model projects

7 projects for age 9 · page 1 of 1

Projects

Ages 4–9⏱ 30 min

Glowing Jack-o'-Lantern Jar

Turns an empty jam jar into a pumpkin lantern and shows the difference between translucent materials, which let light glow through, and opaque ones, which block it and make the face shapes.

Junk ModelArt & Design

Ages 4–10⏱ 45 min

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.

Junk ModelSpace & Flight

Ages 3–9⏱ 30 min

Junk Drum Kit

Different containers make different sounds — big and hollow is deep, small and tight is sharp.

Junk ModelMusic & Sound

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

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Ages 6–12⏱ 35 min

Climbing Spider String Toy

Pulling the strings one at a time makes the spider climb because the angled straws grip the string with friction on one side and slide freely on the other. It is a hands-on way to explore forces, friction and angles.

Junk ModelEngineering & Building

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Ages 8–12⏱ 45 min

Water Filter from a Bottle

Filtering removes bits from dirty water; layers trap different sizes of dirt (but don't make it safe to drink).

Kitchen ScienceJunk Model