CSIRO
A scientist from the CSIRO came to school to do some science activities with us. We had a woman scientist which proves not all scientists are men. Her name was Kylie. We had 4 activities but my group only did 3. In my group there was Celia and Irena. The first one was making a fruit battery. My group chose an orange as the fruit; it was that or a potato. We were given a battery and some metals. There was copper, zinc, aluminum and iron. We had to figure out which metal would produce the most electricity. Scientifically it is zinc and aluminum that would produce the most electricity.
Our second activity we chose to do the disappearing sugar. We had to figure out which sugar would dissolve the fastest. Our hypothesis is that the smallest sugar crystal would dissolve the fastest. We had to put it in a bowl with the same amount of water every time in the bowl. There were 3 kinds of sugar crystals; small, medium and large. The bowl we used was a special bowl because the sugar had to be dissolve by stirring so there was a special place were the bowl was suppose to be put. We also had to put a small magnet inside the bowl so when we turned the speed up on the magnetic stirrer it would spin. The fastest was of course the small sugar crystal.
Our third activity was gas release. We had to figure out which gas pushed the air out of the beaker the most. There was Eno and Sal vital. We had a tray half full of water and a beaker we had to fill up to the top. I had covered the top of the beaker and turn it upside down into the tray then took out my hand. Then we stuck a tube up the beaker carefully. The tube was connected to a glass beaker. Then we put water into the glass beaker then put Eno. Then we cover it with a cork. And the water from the beaker started to push out because the gas put into the glass beaker pushed the water out. After we had finished the gas release experiment we found out that Eno was most effective.
