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Posts by David

The tooth fairy’s finances News

by David, 23 May 2019 | 0 comments

There’s a lot we don’t know about the tooth fairy. We don’t know what they look like, or how they get around, or even what they do with all the teeth they gather. But researchers around the world have been keeping tabs on the finances of this elusive tooth collector.

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Mixing it up! A quick quiz Quiz

by David, 22 May 2019 | 1 comments

Black lightning bolt in purple circle

This quiz will take you from the number zero to 7.5 billion kilometres out in space! Can you answer this mixed batch of questions across science and maths? If you’re after more fun science for kids, subscribe to Double Helix magazine!  

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Run an election Activity

by David, 16 May 2019 | 1 comments

Someone is numbering the boxes on a ballot paper

Running an election is a good way to let everyone have a say. In this example, we will be voting for the tastiest vegetable, but if you design your own ballot papers, you can use this method to run an election about anything!

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Sibling survey Brainteaser

by David, 15 May 2019 | 3 comments

Brain icon

Emily has twice as many brothers as she has sisters. Her brother Bill has one more sister than he has brothers. How many boys and girls are in Emily and Bill’s family?

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Do cats recognise their own names? News

by David, 9 May 2019 | 2 comments

Plenty of owners will tell you their cats are smart, compassionate and wonderful creatures. Scientists are curious about whether this is actually the case. Until this year, scientists weren’t even sure if cats knew their own names.

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What’s in a name? A quick quiz Quiz

by David, 8 May 2019 | 1 comments

Black lightning bolt in purple circle

Scientists love to name things. In this quiz you can discover all kinds of strange and wonderful names that scientists use in their jobs, and where those names come from.

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Bubble nets at home Activity

by David, 2 May 2019 | 0 comments

Someone is scooping confetti out of a bowl of water with a measuring cup

If you thought humans were the only fishers who use nets, think again! Humpback whales work together to net and herd fish, making the fish easier to eat. But these whale nets are made of bubbles! To learn more, it’s time to blow some bubble nets ourselves.

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The triple bounce Brainteaser

by David, 1 May 2019 | 4 comments

Brain icon

I’m thinking of a two digit number. If you add the digits together and then multiply by three, you get the number back again! What number am I thinking of?

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Where did whales come from? News

by David, 25 April 2019 | 0 comments

A four legged animal with big sharp teeth is swimming after a fish.

When you think about it, whales seem a bit strange. They live in the ocean, but breathe air. That suggests that millions of years ago, their ancestors walked on land. But the change didn’t happen overnight.

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How fast do you fall? A quick quiz Quiz

by David, 24 April 2019 | 0 comments

Black lightning bolt in purple circle

From objects in free fall to the fall of the dinosaurs, we’ve got some tricky teasers for you today. Hope you don’t trip up!

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