Step Through A Christmas Card
You Just Couldn't Resist!
There's some serious science behind why you just clicked!
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Be careful with this one. Not because itâs a dangerous experiment but because you could hurt the feelings of a friend or family member.
Make sure you check first before you go stepping through a Christmas card. Youâll see what I mean!
What do I need?
- A Christmas card that itâs ok to step through (ruin!)
- Scissors
STEP1Â â Get an adult to help out with making 5 cuts equally spaced through the âspine sideâ of the card through to about 2cm away from the opposite edge of the card.
STEP2 â Your card will now be divided into 6 sections. Next, turn your card around.
WARNING: DONâT cut the outer 2 sections.
STEP3 â Make 4 cuts on the inner 4 sections from the outside edge of the card to 2 cm away from the âspine edgeâ.
STEP4 â Keep the card in the same position and cut through the âspine edgeâ on the 4 inner sections of your card.
STEP5Â â Now itâs time to put this thing to the test. Open your card up and have a go at stepping through it!
Whatâs going on?
Seemed like it was going to be impossible didnât it?
This experiment is all about Topology (the science of shapes).
In order to be able to step through the card we need to create a space in the card thatâs bigger than us.
Kind of seems impossible but as youâve just seen we can actually make a shape much bigger than us out of a pretty small card. Baffling but incredible.
Take a deep breath. Breathe out. Obviously you just used your lungs but did you know that the surface area of your lungs is about the same as that of half a tennis court! This is just like the our Step Through Christmas Card where shapes can be much bigger than we might first think.
More Fun Please! -Â Experiment like a real scientist!
- Whatâs the smallest card that youâre able to step through?
- Can you come up with a better design to make a bigger shape from a smaller card?
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You'll get your FREE copy of 'Don't Eat Your Slime', weekly 'Top Secret Science Experiment Printables' and occasional awesome offers. Happy experimenting! đ
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