While investigating acids and alkalis, some of our Year 7 students produced a beautiful rainbow of colours in a test tube. Acid at the the top (red), alkali at the bottom (violet) and every colour in between:

Students from Tanjong Katong Secondary School, Singapore joined us on Wednesday 27 November to make rocket fuel and then fire them off from our school field toward our Head of Secondary, Mr Skinner:

Mr Hari prepares to use our rocket launcher.

3 … 2 …

1 … fire!

… plop.

We try again – fire!

It worked! Can you see it?

A perfect parabolic flight path.

Now you see it

Now you don’t