OPTIONAL CHALLENGE 05 · CHEMISTRY DISCOVERY
Can an invisible electric charge make tiny tissue pieces jump without touching them?
Optional · Try Another Angle
Your new skill: Extend a main-path idea without making the course longer.
Match the names to your parts before you build. New parts appear when you first need them. You can point, say the name or show a grown-up.
Tissue has tiny spaces between fibres. Water can travel through them; layers can also trap some particles.
Look for: Find the same tissue type for both strips in a comparison.
Before using it: Keep tissue type and water amount the same when testing strip width. A filter result is not water purification.
Your turn: Feel dry tissue, then predict what a damp edge might do.
A balloon can hold air. Escaping air can push a car; a rubbed dry balloon can attract tiny paper pieces.
Look for: Find the uninflated balloon and its neck.
Before using it: An adult inflates and ties it where needed. Keep broken pieces away from young children and stop if anyone has a latex allergy.
Your turn: Point to the neck where air will leave; save the test for the mission.
A tray catches spills, cups hold samples or form a model, and a dry workspace protects our tools.
Look for: Choose the exact container and dry surface in the mission list.
Before using it: Experiment cups stay separate from food and drinks. Keep electronics away from liquids and clean up before storing parts.
Your turn: Show where a spill would land and where electrical parts will stay dry.
A video demonstration will appear here when it is ready. You can follow the written step now.
Before we build, match these names to the parts in front of you. Tissue and paper strips. Tissue has tiny spaces between fibres. Water can travel through them; layers can also trap some particles. Find the same tissue type for both strips in a comparison. Keep tissue type and water amount the same when testing strip width. A filter result is not water purification. Balloon. A balloon can hold air. Escaping air can push a car; a rubbed dry balloon can attract tiny paper pieces. Find the uninflated balloon and its neck. An adult inflates and ties it where needed. Keep broken pieces away from young children and stop if anyone has a latex allergy. Tray cup and dry workspace. A tray catches spills, cups hold samples or form a model, and a dry workspace protects our tools. Choose the exact container and dry surface in the mission list. Experiment cups stay separate from food and drinks. Keep electronics away from liquids and clean up before storing parts. Pause and point to the part that will do the main job in this mission. If it is missing or looks different, ask a grown-up before building.
WHAT YOU'LL USE
Kit list: match the named parts to your box and its component cards. Home list: gather these before starting; some may also be supplied in your kit. Reuse components between missions. Stop and ask a grown-up if an essential part or label is missing.
BEFORE YOU BUILD
Adult handles the balloon. Remove broken pieces at once. Grown-up move: Inflate and tie the balloon; remove broken pieces.
YOUR REWARD
PREDICT BEFORE YOU BEGIN
What do you think will happen? Say it, point to it or draw it. Then test your idea.
YOUR CHALLENGE
SKILL BRIDGE
Use the exact samples listed in What you need. Match container size and keep the stirring method the same.
BUILD PATH
STEP 1 OF 6
Adult: inflate and tie a dry balloon.
A video demonstration will appear here when it is ready. You can follow the written step now.
Adult: inflate and tie a dry balloon.
WHAT'S REALLY HAPPENING?
Rubbing can transfer electric charge to the balloon. The charged balloon rearranges charge in nearby tissue, creating attraction without touching.
CLEAN, RESET AND STORE
Ask your grown-up to follow the supplied disposal instructions. Keep glitter and solid pieces out of drains. Clean the tray, wash your hands and store labelled materials away from younger children.