91热爆

24 September 2014

18 March 2004 1544 GMT

James Piercy from the Inspire Hands-on Science Centre shows you the postcard challenge

Here is something you can challenge your mates to do: can you step through a postcard?

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Have you tried the experiments - were they good or do you know one that's better?

Have your say, e-mail norfolk@bbc.co.uk

Other Science experiments:

Postcard trick

Lumpy custard

Burp in a pot

Colourful cabbage

Gooey slime ball

A-Z Norfolk Science

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If you want to look really clever then you can challenge your mates to the postcard test!

All you need is a postcard and scissors

Give them a postcard and a pair of scissors and see if they can work out how to step through the postcard.

Seems impossible? Not if you know how!

To do this challenge all you'll need is a postcard and a pair of scissors.

Instructions:

	Step 1 Fold the postcard in half length-ways.
Step 2 Cut a slit into the folded edge, until you are about 1cm from the end.
	Step 3 Do this again all the way along the postcard until you reach the end.
Step 4 Now turn the card around and do the same on the other side.