In Te Maunga this week we had a visit from the Northland Science Roadshow. We learnt about rockets, spectroscopy and water testing. When we did rockets we learnt about what was in rocket gas. I learnt that they use methylated spirits to launch the rocket into outer space. In spectroscopy I learnt that when you look at the sun and it's white it is actually made of lots of colours. I learnt how rainbows are made. Rainbows are made when it rains because the sun reflects off the water droplets. We got glasses to see some cool rainbows. In water testing I learnt that the darkest shade of blue is polluted water and the darkest shade of yellow is
sewage water
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