Water moves from jar to jar due to capillary action and surface tension. The surface tension of the water keeps the water from falling off the paper towel onto the table below as it creeps up the paper towel. Preheat the oven to 170C/150C Fan/Gas 3. Grease 6 x 20cm/8in loose bottom sandwich cake tins (approximately 4cm/1½in deep) and line the bottoms with greaseproof paper. Dust the tins with flour, then shake out the excess. Divide the remaining buttercream into 6 equal portions and place in bowls. Colour the buttercream in the same way you coloured the cake batter, then place each colour into a separate piping bag.

Rainbow Dust ProGel® Concentrated Food Colour, Orange Rainbow Dust ProGel® Concentrated Food Colour, Orange

STEAMsational offers STEM and science lesson plans and teaching resources to provide a firm STEM foundation for children in the classroom or home. The walking water science experiment is great at any time of the year, but it is especially perfect for spring. I love doing rainbow activities in the spring, so this was a great addition to our rainbow theme activities. If you are looking for simple science to do with the kids and something that will really WOW them, this is definitely one to try. Plant foods are full of fibre, and fibre is what keeps your digestive system running optimally. Plus, fibre and other plant nutrients are prebiotics: food molecules for your gut bacteria that also help keep you healthy.

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Capillary action is the force that is applied to the molecules in the water as they are absorbed by the towel. The pressure gently pushes the water all the way through the towel, and down into the jar next to it.

Rainbow Experiment That Works Like Magic 2- Ingredient Walking Rainbow Experiment That Works Like Magic

Put some sunshine in your belly with these cheerful yellow vegetables of the rainbow diet. Try some spiralised squash instead of pasta, or even a simple baked potato topped with some other lovely rainbow foods. Corn

Bring bold and bright colours to every delicious treat! With our range of food colouring and colour gels, you’ll be all set to personalise all of your cakes and bakes. As well as transforming your icing, you can also use it to create colourful sponges and much more. Choose from every shade imaginable, available from top brands like Rainbow Dust, Wilton and Colour Splash. The water is able to move upward against gravity because of the attractive forces between the water and the fibers in the paper towel. Using a knife or a cheese grater, trim the sides of the cake to within a few millimetres of the cake board it’s sitting on. Add a splash of milk to the buttercream and beat for 30 seconds to loosen. Put 2 spoons of the buttercream on the top of the cake, then spread the buttercream towards the edges and down the sides with a palette knife. Scrape of any excess and discard. This layer should be very thin, almost translucent in parts. Return the cake to the fridge for 10 minutes.