Margo brought along an experiment with lots of scientific equipment she could teach us the names to.
She had a beaker, a test tube, a pipette, a drip tray, a scoop.
Her hypothesis was that if she combined vinegar and baking soda there would be a reaction ( explosion) and gas and liquid would bubble up out of the test tube over into the drip tray.
She was right!
She repeated the experiment in a larger container with more baking soda and vinegar and she hypothesised that the reaction would also be BIGGER - she was right again.
We talked about how after an experiment the things in the experiment have changed and aren't still vinegar and baking soda... so you couldn't reuse the vinegar and pour it in with the unused stuff or it would not work.
We also talked about some ways to speed up an experiment - stirring, shaking, heating up or adding a catalyst because Margo tried stirring the leftovers to make it speed up and it did work.
Wow that was lots of science words!
Georgia has studied a famous scientist Rosalind Rosevelt.
Rosalind took the first photo of DNA which showed its structure and found out all about it.
Georgia had prepared an amazing powerpoint which she had timed exactly to her words.
She also had colour photocopies of the structure of DNA for us to look at up close.
We thought we learned flash words with Margo... then Georgia taught us Deoxyribonucleic acid!
Bradley also tried his experiment at home before he shared it with us.
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