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Home » Science Experiments for Kids » The cow jumped over the moon catapult

The cow jumped over the moon catapult

Modified: Apr 7, 2023 · Published: Jun 22, 2016 by Emma Vanstone · This post may contain affiliate links · 1 Comment

Discover how force affects the motion of a projectile and how changing the launch angle affects the distance travelled with this easy catapult investigation based on the Cow Jumped Over the Moon nursery rhyme.

You can see how to build a simple lolly stick catapult in this video.

I’ve designed this activity to appeal to young children, but it can easily be extended for an older audience.

Hey diddle diddle, the cat and the fiddle,

The cow jumped over the moon.

The little dog laughed to see such fun

And the dish ran away with the spoon!

Lollystick catapults are inexpensive, easy to make and appeal to children of all ages. I’ve given this one a Preschool/Early Years theme by simply drawing a cow on a ping pong ball, but you could also use a ball as the Moon and investigate the conditions needed to catapult the cow over the Moon or even draw planets and lay them on the floor as different targets.

Older children could design and make a target either stuck to a wall, a free-standing structure or as a real challenge, how about a target that flips backwards when hit?

Links to Literacy 

Write a new version of the traditional nursery rhyme, including the words catapult and force.

Write instructions for a game, including a catapult and a target.

Links to Maths

Create a target ( this could be Moon shaped ) with different numbers in different areas. The children can then keep track of either other’s score over three attempts to hit the target.

lolly stick catapult with a table tennis ball  decorated like a cow

Questions to ask about the cow jumped over the moon catapult

How do you think force affects the speed a catapulted ping pong ball travels?

How do you think force affects the distance a catapulted ping pong ball travels?

The greater the force, the greater the speed and distance.

How can we test this using a catapult?

The further down you push the milk bottle top, the greater the force applied to the ping pong ball and the faster it will travel.

How to work scientifically

Design a question to answer

Does the ping pong ball travel further if more force is applied?

Does the ping pong ball travel higher if launched from a greater angle?

What will happen if the centre part of the catapult is made taller using more lolly sticks?

Make a prediction – for example

If more lolly sticks are added to the catapult, the ping pong ball can be launched from a greater angle, meaning it will reach a greater height.

Design a fair test

Think about how to make the investigation fair.

  • Use the same catapult
  • The same person should apply the force
  • Measure from the same release point.
  • Repeat at least three times and find the average distance/height.

Design a method of recording data

How about a table or voice recording?

Do the observations answer the original question? Was the prediction correct? If not, why not?

How could the investigation be improved?

cow jumped over the moon - catapult

Extension tasks

Think about the angle the ping pong ball is launched from. To travel the furthest distance possible, a projectile should be launched from a 45-degree angle. More than this, and the projectile will go higher but cover less distance.

Can you draw this?

Projectile – an object that is launched into the air by a force.

Catapult – a mechanism that launches a projectile.

Thank you to the fantastic Imagination Tree for the inspiration for this activity.

Catapult the cow over the moon

Last Updated on April 7, 2023 by Emma Vanstone

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Safety Notice

Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources.

These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. The adult involved is fully responsible for ensuring that the activities are carried out safely.

Reader Interactions

Comments

  1. Melissa

    April 23, 2020 at 2:59 pm

    Love this! Thank you!

    Reply

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