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By Fiona Midson and Beth Askham Here is ‘acute’ quiz for you to size up! Answer these questions to see if you are in shape.

If you dug a hole straight down, what would you find? Earth isn’t just solid rock all the way through. There’s a thin rocky crust floating on the slowly flowing mantle, a liquid outer core and solid metal inner core. It turns out that Mars has a similar internal structure to Earth.

Black holes have such strong gravity that nothing, not even light can escape its clutches. We like to imagine that they are far away, like the supermassive black hole in the heart of our galaxy. But there may be black holes much closer to home. We’re just not very good at seeing them – after…

Here are five space science questions to challenge you. Is your mind a great expanse, or are you a bit spaced out?

This quiz has a focus on bodies, from celestial to human. How much do you know about the universe? Do you really know how you’re put together? Answer these questions to find out!

We have a few questions from the world of metrology! That’s the science of measuring things. So have a go, and see how you measure up!

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!

Do you know your trees, moons and non-metals? We’ve got a bunch of tricky trivia here for you this round! If you’re after more fun science for kids, subscribe to Double Helix magazine!  

Getting 5/5 in this quiz won’t guarantee you a Nobel, but it might give you a hint on how to get one!

Sometimes space missions can seem a bit faddish. Four spacecraft are currently orbiting Mars, and at least three missions are looking for new planets outside our solar system. But the new hotness, it seems, is asteroids.