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Posts by David

How changing dog food changes dog poo News

by David, 4 August 2022 | 0 comments

Cute Silkie Terrier dog next to a bowl of dog food.

If you get bored eating the same thing over and over, spare a thought for dogs. Many pet dogs eat the same thing every day, week after week. And a change in food can be abrupt – empty the old bag of dog food, and start with something brand new. But how long does it take a dog to adjust to a new diet?

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Reflective roads Activity

by David, 3 August 2022 | 0 comments

Road paint is surprisingly shiny! Image: ©iStock.com/NYC Stock Photos

Have you ever sat in the front seat of a car at night? Road reflectors, street signs and even road paint all shine bright under car headlights. Make your own ‘road paint’ and see if you can make it shine with glass beads!

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Ride the wave – a quick quiz Quiz

by David, 28 July 2022 | 3 comments

This quiz is all about waves. Will you ride it to victory, or will you wave goodbye to your high score?

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Two candles brainteaser Brainteaser

by David, 27 July 2022 | 3 comments

Brain icon

Barry has 2 candles that are both 60 centimetres long. One will last for 1 hour, and the other will last for 2 hours.

Barry lights both candles at the same time. Later, he blows them out at the same time.

The next day, Barry realises that one of the candles is half the length of the other.

Assuming they both burnt evenly, how long were they burning for?

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A maths prize for packing balls News

by David, 21 July 2022 | 2 comments

Box bursting open with green balls spilling out.

Have you ever struggled to pack balls back into your toy box? The Fields Medal, one of the most famous prizes in mathematics, was recently announced. One of this year’s winners, Ukrainian mathematician Maryna Viazovska, is an expert in packing balls in boxes. But there’s a catch! Her findings work in 8 dimensions (D) and beyond.

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Try a tangram Activity

by David, 20 July 2022 | 0 comments

a duck shape made of smaller shapes

This traditional Chinese puzzle, known as a tangram, reveals some surprising properties of squares!

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Up in the air – A quick quiz Quiz

by David, 14 July 2022 | 0 comments

Here are 5 fresh questions to juggle for this week’s quiz. Will you score high, or come crashing to Earth?

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Five makes 80 brainteaser Brainteaser

by David, 13 July 2022 | 2 comments

Brain icon

Can you find 5 consecutive (counting upwards) numbers that add up to 80?

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Turn a t-shirt into a bag Activity

by David, 7 July 2022 | 0 comments

a black bag with the slogan: stand tall, be strong, wear a crown and be kind

Need a bag to carry your library books, or to tote home your shopping? Here’s a way to turn an old t-shirt into a new bag, no sewing needed, during Plastic Free July.

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Australia’s fascinating land snails News

by David, 6 July 2022 | 1 comments

Australia has many amazing land snails. There are currently about 1,500 described species and another 1,000 waiting to be named.

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