Tuesday 24 May 2016

Mad Science By Elijah


TITLE:  Mad science



Mad Science
It was around midday, me and my friend Dylan or also known as Dk Plays YT (go and subscribe to his channel). We were sitting on the mat with the rest of the hub waiting for our teacher. I was reading the Science experiments up on the board. The first one was the fizz inflator, the next one was Dancing raisins "I wonder what that is", I thought. The last on was the Supa Dupa Lupa!!!!! I was most looking forward to was the fizz inflator. Finally the teachers came and instructed us to go to certain places in the hub. We went to the lino first to do the fizz inflator.

We all found a seat and opened our chromebooks and looked for the heading Fizz Inflator In a doc. Dylan said I would take notes and he would write down the ingredients, hypothesis and instructions. Mrs parker (our favorite teacher) started explaining chemistry formulas or symbols, H2O and lots of other symbols. She explained how yeast needs sugar to feed on.

Once she'd explained everything she showed us the first experiment. First she added a bit of water and sugar. Then She poured in a spoonful of yeast. She quickly put a balloon over the top of the bottle. We were surprised It didn't explode. Dylan immediately put his hand up and asked why it didn't explode. Mrs parker said "It didn't do anything because the yeast needs time to eat the sugar so eventually the balloon will blow up", Mrs Parker explained. "The balloon should be pretty big at lunch", She said.

Now it was time for the next experiment. This one Mrs Parker had another bottle. She filled it with vinegar. She grabbed up the balloon and filled it with baking soda. This time we were really wondering how this would react. We both had experience with volcanos when we were in kindergarten so we had a bad feeling about this. She tightened the balloon onto the top of the bottle. Then she suddenly tipped it so the baking soda fell into the vinegar. Mrs Parker was holding on to the balloon very tight so it didn't fly off. Amazingly the balloon started to blow itself up. It started to fizz up like a fizzy drink after it had been shaken.

We wondered why. Mrs Parker started to explain how the baking soda reacted when it was poured into the vinegar. Finally it was time to go onto the next experiment. It sounded really cool. It was called Dancing raisins. Dylan and I walked excitedly over to where that experiment would be performed. Mr Stuart explained the instructions even though we had already read it. We wondered what would happen. We were using soda water, raisins and a transparent plastic cup. We got on with the experiment.
We got some soda water from mr stuart and went off to our table. We made predictions on what was going to happen. "I think the raisins will jump out of the cup", I said. We kept on talking. Finally Mr Stuart came round with some raisins. We grabbed 5 or 6 each and threw them in the cup. It got a bit fizzy, but luckily it didn't spill.The raisins had air bubbles all over them. Then suddenly 3 of them floated up to the top, they stayed there for 15 seconds then floated back down. It happened about 5 times over 1 minute and 30 seconds. Mr Stuart came round and gave our cup a flick. He said it might make some more float up, but they only floated back down. The raisins weren't floating up as much now.

Dylan and I were typing down notes rapidly. We didn't know why were floating yet. It was time to go down to the mat so Mr Stuart could explain why the raisins reacted like that. I think it was because when the raisins get tipped into the water they float to the bottom, then all the bubbles in the cup cling onto the raisins. The bubbles lift the raisin up to the top. The raisin floats up. The bubbles keep it up for a bit then pop. The gives the raisin back its weight and floats back down to the bottom. Now it was time to go onto the next experiment. We walked to the next experiment, our heads bulging with knowledge.

This was Whaea Nins experiment. It was the amazing hoop glider. Whaea Nin explained what to do. She explained how the physics worked. Finally we got started. She roughly cut us 1 big piece of paper. We had a choice of hot glue or tape. I chose tape. I thought it was the easiest. I made a circle. Then we did the same thing except smaller. We put a straw through then threw it. It flew really well. Then we tidied up.

This was an awesome school day. I learnt loads. My favorite thing was the fizz inflator. I was really suprised it didn't explode and I wondered if You could put much more in and make an explosion.

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