Once again, Room 12 was full of fun and happy Scientists.
Today's science experiment created bouncing raisins.
Equipment needed for this experiment:
- Jug of warm water
- White Vinegar
- Baking soda
- Recording book
Firstly, we put warm water into the container. Next we put two level teaspoons of baking soda into the warm water. Then we put 3 raisins into the water and after that we filled the whole container with vinegar and it exploded like a volcano. Then our raisins started bouncing straight away. The raisins bounced for 20 minutes, they were still bouncing when we went to morning tea.
Firstly, we filled the container to the half way mark with warm water, added 2 big teaspoons of baking soda, 3 raisins and lastly, we put white vinegar in the container. The liquid exploded like a VOLCANO! Just before morning tea our raisins in the container started to bounce.
When we came back from morning tea one was still bouncing.
Ryan, Simarpreet, Cody, Jade and Lochie:
Before morning tea we followed the same method as the other groups, however, we only added 1 raisin to start with. After about 10 seconds the raisin started bouncing. Next we put three more raisins in and nothing was happening, so, we put more baking soda then the raisins started bouncing like mad. This was before morning tea and when we came back from morning tea they were still bouncing. It is now midday and as we are writing our part of this blog, two raisins are still bouncing.
Vincent and Leikahr:
We put the warm water into a container followed by 4 raisins, next we put two level teaspoons of baking soda and lastly we filled the container up to the top with vinegar. WOW, the raisins started bouncing straight away. In the first experiment the raisins bounced for about 20 minutes. We repeated this experiment and added less raisins and more vinegar and an hour and 15 minutes later they are still bouncing.
Caleb, Ryan Stutter, Alex, Cole and Zoe:
Firstly, we filled the container to the half way mark with warm water, then added 2 big teaspoons of baking soda, 3 raisins and lastly, we put white vinegar in the container. The liquid exploded like a VOLCANO! Just before morning tea our raisins in the container started to bounce and when we came back from
morning tea one raisin was still bouncing.
Hamish Yash, Naesha, Shivali, Nandini and Yandri.
This group recorded two experiments:
Firstly we poured warm water to the half way point in the container, we measured two level teaspoons of baking soda into the water. Next, we put one raisin in the container, we filled the container with the vinegar and bubbles formed and attached themselves to the raisins which made the raisins start to bounce.
Second experiment :
We used warmer water, 2 raisins, approximately 3 teaspoons of baking soda in the water and poured the vinegar up to the top of the bottle. Bubbles formed and attached themselves to the raisins and the result was that the raisins bounced faster.
The group believe that adding warmer water, more baking soda and less vinegar made this experiment's raisins bounce faster.