Wednesday, 16 November 2016
Monday, 7 November 2016
Friday, 4 November 2016
Title - gummy worms experiments
Purpose: What do you want to learn/find out?
To find out when you put gummy-worms made out of sodium alginate in a solution calcium and chloride
Hypothesis: Try to predict the answer to the problem. Another term for hypothesis is ‘educated guess’. This is usually stated like ” If I…(do something) then…(this will occur)
I think it won’t work because the sodium alginate won’t go with the water only if you put in the calcium.
Materials: List everything you will need to conduct your experiment.
Calcium, chloride, sodium alginate, pipettes, and little cups, water
Experiment procedure: The fun part! Design a test or procedure to confirm or disprove your hypothesis. Write down each step so that someone else could do the same experiment.
1. We mixed water with calcium chloride.
2. After that we got the pipettes and filled it with sodium alginate.
3. Then we Fill the water and add the sodium alginate.
4. Then we watched the sodium alginate move around the cup of water.
5. When we finished watching it we took it out of the cup
6. Then we tipped out the water and all of us were holding the sodium alginate.
Analysis/Data: Record what happened during the experiment.
When we finished the little drops of sodium chloride were floating in the cup of water and calcium chloride.
The water didn’t go with sodium alginate.
When we took out the sodium alginate it was yuck, green and soggy.
When we added all the sodium alginate together the cup of water turned into to green.