As part of our science week investigations we made simple yet effective lava lamps.
We discussed how and why the different materials behaved the way they did and were all amazed at just how easy they were to make.
Here’s how to do it, in case you want to try it at home:
You will need:
Vegetable oil
Water
Food colouring
Salt
A clear cup or container
What to do:
Fill your cup with water (3/4 full)
Add food colouring (about 5 drops)
Fill the rest of the cup (1/4) with vegetable oil (or similar)
Sprinkle salt in the top
Watch what happens …
Can you explain the different effects or reactions?
One comment on “Lively Lava Lamps!”
I liked that very much