Learning about science.

 In Te Maunga this week, we had a visit from the Northland Science Roadshow. We learnt about rockets, water testing and spectroscopy. Our class got split into 3 groups. I was in group three and we were first to do the rockets. We used plastic bottles as rockets. I learnt about the amount of pressure you had to have in the bottle to make it go far. Next we did water testing. For water testing we used two chemicals called nitrate and ammonia. I learnt that if you put a different amount of the chemicals in water it changes color. We looked at the different types of water and they weren't drinkable. The last activity we did was spectroscopy. We got a box with a slit in it and a CD. We had to slide the CD into the slit in the box and it made the CD look like it had a perfect rainbow on it. I really liked doing science projects with the Northland Science Roadshow.