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You would never add a heap of salt to your ice cream, but this tasty treat can be made by taking advantage of a chemical property of salt and a bit of elbow grease. Here’s how! Safety: The ice in this activity can get very cold, well below freezing. Take care not to touch it…

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!

Written by Caitlin DevorThere’s life under ice. Scientists found an entire community of bacteria living 800 metres under the surface of glaciers in Antarctica. These bacteria rely on each other to survive in the dark, isolated, subzero lake.