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air pressure posts

Breathe life into balloon lungs Activity

by Ariel Marcy, 28 September 2023 | 0 comments

Plastic drink bottle with bottom cut off and replaced by a balloon.

Have you ever wondered how your lungs move air around? Safety: This activity involves using scissors to cut into a plastic bottle. Ask an adult for help with this step and cover the resulting sharp edges with duct tape.

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Heron’s fountain Activity

by Fiona Midson, 15 February 2023 | 0 comments

Make a fountain that doesn’t need an electric pump. This fountain was designed by Heron, a Greek teacher and inventor in 1st Century CE. Safety: This activity involves using an electric drill, a sharp knife and a hot glue gun. Adult help is required.

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Mountain air pressure Activity

by David Shaw, 12 November 2020 | 3 comments

Holding up an eempty drink bottle with mountain in the background.

Here’s a great excuse for a trip up a mountain! Grab some bottles and learn why it’s hard to breathe at the top of tall mountains.

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Levitating card Activity

by David Shaw, 5 September 2019 | 0 comments

Man blowing through a cotton reel.

Normally, when you blow on a piece of card, it flies away. But in this activity, you can blow to pull the card towards you with the science of air pressure!

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Vacuuming marshmallows Activity

by David Shaw, 27 June 2019 | 1 comments

Image of a cracked marshmallow in a glass bottle.

In this hands-on activity, you’ll make your own vacuum chamber and watch marshmallows turn into fluffy clouds of sugar!

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Make a cloud Activity

by David Shaw, 3 May 2018 | 0 comments

Photo of a glass jar with water in the bottom and a baloon stretched over the opening.

Create a cool cloud inside a jar using these instructions.

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Green eggs Activity

by David Shaw, 13 April 2017 | 0 comments

An egg with a green yolk in a bowl

Time for an Easter trick! There are lots of eggs around at this time of year, but this one is sure to raise some eyebrows. And when you’re finished, you can get your parents to help you cook your green egg, so you can gross out your entire family!

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This is a hold-up Activity

by Mike, 4 October 2013 | 0 comments

Inverted plastic cup containing green water, with a card pressed beneath to keep the water in.

Written by Justin McGuire This activity may splash some water around, so try it over a sink or outside.

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