Does ice melt fastest on land, in fresh or salty water?
Ice melting is a global climate change issue, so we're giving you the chance to become a climate scientist at home with this cool experiment!
Watch this video to get started, then follow the instructions and record your results at www.npl.co.uk/...
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Our Measurement at Home challenges are a chance for everyone to have some fun and learn about the science of measurement. How heavy, how long, how fast, how bright....? All these measurements will be investigated and you will find out why measurement matters in our everyday lives.
This is your chance to be curious, take some measurements and compare your results. Join in, have fun and learn some real practical science!
Follow us on social media and share pictures of your tests using the hashtag #MeasurementAtHome.