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December Science Challenge

Get involved in our December Science Challenge to make a Snow Globe.


  • An Empty Jar and Lid
  • Water
  • Glycerin
  • White Eco Glitter
  • Small Animal Toys, Houses, or Trees to Decorate Snow Globe


1. Glue the toys or other decorations to the inside of the lid, making sure the lid can still fit on the jar.

2. Fill the jar halfway with glycerin, then fill it almost to the top with water, then stir to mix.

3. Add a small amount of eco glitter. Stir with a spoon to test the ‘snow’ effect, and add more until you get the flurries or blizzard you like.

4. Fill the jar up the rest of the way, until the water is just above the top of the jar.

5. Gently put the lid on and screw it securely to the jar.

6. Wipe any water off the jar, and put some waterproof tape around the lid.

7. Enjoy your snow globe!

How does it work?

Glycerin has a very high viscosity. Viscosity is how ‘thick’ a liquid is, how easily it pours. Honey and syrup have pretty high viscosities, water has a very low viscosity. Having a mixture of water and glycerin means the liquid inside your snow globe slows the glitter down as gravity pulls it down. This helps it look more like snow.

Scientist of the Month

Our Scientist of the Month for December is Katie Bouman. Can you write some facts about this amazing Scientist?

What is her Science Specialism? When was she born? Where does she live? What has she achieved? Why is she the Valence Scientist for December?

Download the PDF's below to help with this months Science Challenge.