Details Activity Length 20–30 mins. Topics Forces and Motion Activity Type Exploration Language English Print

A catapult is a lever before, a stick or beam propped up by a fulcrum (a pivoting point). A lever will certainly magnify the force you put on it if the fulcrum (the pivoting point) is closer to your force than it is to the load.

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The catapult magnifies your force to throw a pompom in this activity. The larger the pressure, the farther the pompom goes.

These activities are component of Science World"s Big Science for Little Hands regime. They were developed and tested with Precollege and also Kindergarten educators.

Gadgets and also Contraptionsprintable guide

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Objectives

Use ramps, pulleys, levers and pendulums.

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Materials

A lever arm (e.g. wood ruler or jumbo popsicle stick)

A round fulcrum (e.g. spool of thread or fat marker)

Elastic bands

Spoons

Chalk or masking tape

A load (e.g. pompoms)

Key Questions

Can you acquire your pompom to the target/across the "water"? How deserve to you change the distance the pompom travels? Wright here must the pivot point (fulcrum) be positioned to make the pompom travel the shortest distance?

What To Do

Assemble the catapults ahead of time for younger students.Create “taracquire zones” on the ground or a table making use of chalk or tape, based on your catapult’s selection.Demonstrate how to load and launch the catapults.Encourage kids to attempt them out.Try adjusting the pressure you usage via the catapults to fire the pompoms different ranges right into different areas (e.g. push gently to move the load a short distance, push hard for a much longer distance.

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Extensions

For younger youngsters, erected the fulcrums of a number of catapults, each in a various place. Which catapult flings the pompom farther? For older youngsters, challenge them to change the area of the fulcrum themselves and also see just how it affects the distance the load travels. Hint: Set up the catapult with the fulcrum positioned so that it is least reliable at the begin of the expedition to encourage children to adjust it. Theme the taracquire zones, such as water with alligators or castles through guards. Add boxes or buckets to aim for. Competition – that can make their pompom travel the furthest? Have kids style and also decoprice their own catapult. Discover about the history of the catapult and also trebuchet. Explore teeter-totters and also other levers in your neighbourhood. Build a gigantic catapult outdoors and launch water balloons or pumpkins.