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Think you understand magnets? In this hands-on activity, use a magnet to make a needle float and then fall.

Alice, Bernice and Claire are all speedy bike riders. They decided to race against each other to find out who is fastest cyclist. They ran three races together. In two races, Alice beat Bernice. In two races, Bernice beat Claire.

Imagine a swirl of milk in a cup of tea, or a drop of food colouring in a glass of water. The way liquids move and flow is intricate and almost impossibly complex. But that doesn’t stop scientists from trying to understand this movement.

Do you know how frogs breathe? We do! Test your knowledge in our latest quiz covering topics from plants and stars, to rocks and bytes.

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

On Dr Vine’s desk there is some money. There are six pieces of Australian money. The money adds up to $63.

Earth is active down to its very rocks. Earthquakes and volcanoes shake our planet, and the continents themselves drift lazily across the surface. Compared to Earth, the Moon is a cold, hard rock. But even lunar rocks are more active than you might think.

There are a few funny words in this week’s quiz. You’ll need to be on top of your sci-vocab if you want to score 5/5!

Time to get creative! With some permanent markers and methylated spirits, you can use chemistry to make some cool looking t-shirt designs.

I have four playing cards: two of them are black and two are red. I turn them face down so you can’t see the colours, and shuffle them so you don’t know which is which.