Rainbow Water Density Tower
Aim - To observe how substances with different densities interact
Materials
Glasses - 1 per group
Food colouring (red, blue, green and yellow - you can make purple and orange by combining two colours)
Sugar or Salt (and measuring spoon)
Measuring cup - 1 per colour (you can have 6 colours to work with, or limit it to 4 colours)
Measuring syringes
Water (warm water from a tap or kettle)
Plastic spoons to mix the sugar and food colouring in the water
Pots of water to rinse syringes between each colour
Plastic plates or trays to protect the table from sticky sugar water
Results
The different densities did not mix because they are different layers. When we put different amounts of sugar in each cup the density changed and that's why the colours did not mix.
Explanation
Look at the websites below and also do research of your own - Then write a paragraph explaining ‘the science’ behind the experiment. Why do we see the results that we did?
Saveer & Arhans Result:
Rishi & Aaravs Result:
thats an incredible expirement rishi! I really like the way you made sure that the colours didn't mix because you wrote that they are not meant to.
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