Tag Archives: jet engine

How does a Jet engine work?


Have you been in an aeroplane?

Did you know that if  the jet engine wasn’t invented we’d be keeping our feet on the ground?

Jet engines move the aeroplane forward with a force that is produced by a tremendous thrust!

What is a Thrust?

Thrust is the force that pushes the aeroplane engine forward.

Sir Isaac Newton discovered that for “every action there is an equal and opposite reaction.”

Check out the air flow!

An engine does this by taking in a large amount of air, the air is then heated, compressed and slowed down.

The air is then forced through spinning blades and mixes with jet fuel, making the temperature of the air as hot as three thousand degrees!

This hot air powers the turbine (a part of the engine). Finally, when the air leaves, it pushes backwards out of the engine, making the plane fly!

Did you know?

That the cry of a blue whale is louder then the sound of a jet engine? It can be heard hundreds of kilometers away! Looks like nature got there first!

Jet Engine Balloon


You’re a bit too young to fly a real jet engine, but here’s a fun activity you can do that will teach you about pressure!

What you’ll need:

- Scotch tape

- A drinking straw

- a long balloon

- 3 metres of nylon string

- trees, poles or chairs to tie the string to

How to do it:

1) Take one end of the string and tie it to a tree or a post

2) Slide the straw onto the string

3) Tie the other end of the string onto another post or tree, making sure the string is tight

4) Blow up the balloon and hold the opening so the air won’t escape

5) Face the opening of the balloon towards the post you tied the other end of string to, rest the balloon on the string and tape the balloon to the string

Go Jet Balloon!

6) Release the balloon!

Why did that happen?

When you let go of the balloon all of the air inside rushes out! Which causes the balloon to speed across the string!

Episode – Jet Engine


Oh dear Morc and Skelly are at it again and somehow Garth and Bev have gotten mixed up in the mess!

Skelly has challenged Morc to a boat race, but when everyone gets out to sea the oars are lost overboard and they can’t get back to shore!

Luckily Garth and Bev see a jellyfish propelling himself through the water and get the great idea to propel the boats back to shore. Grandfather Lir is so proud of his grandchildren he sends them through the time spiral to meet Frank Whittle who invented Jet propulsion. The invention that makes planes go really fast through the air!