Sinking and Rising

What You'll Need

  • A tall glass or bottle
  • Food colouring
  • Salt
  • Water
  • 30 mins
  • Ages 2 - 6
  • Inside
  • A Little Messy
Oil will float on water
At least that’s what I think,
Here’s a little game to play
Can you make it sink?

Getting Started

  • Pour water into the tall glass/bottle until it’s two thirds full, then add a few drops of food dye.
  • Now add a few tablespoons of vegetable oil and leave it to settle.
  • And now a few pinches of salt – watch what happens.
  • And more salt.

Now… what’s happening?

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