When we went to the museum we had some afternoon tea. Then we got to go into the lab to do some science experiments. We have been studying kitchen chemistry at school so it was really cool to have a session about 'Lotions and Potions'.
For one experiment we had to put acetone in a styrofoam cup to see what the reaction was. The cup melted away into a very cold goopy liquid in the bottom of the tray.
We made a neutral liquid using red cabbage in water. We put this water in long tubes and added a number of different ingredients to see what the reaction was. Acids turned the liquid pink and bases turned the water dark purple. It was lots of fun to see which was which.
Kate was our educator for the day and she showed us an experiment called elephant's toothpaste. She added warm water, food colouring, dish liquid and hydrogen peroxide to a bottle. Then she mixed dissolved yeast into warm water and combined the two mixtures. The reaction was a green frothy mixture bubbled up out of the bottle and down the sides.
We made gas in a jar by adding some ingredients to baking soda and water. We sealed them in a plastic bag. When the mixture got shaken up it began to react. The reactions was a gas that filled the plastic bag. It became very tight and eventually it popped.
We filled a beaker with water and a few drops of food colouring. Then we added some vegetable oil. The oil and water did not combine no matter how much we mixed them. Then we added dome detergent and mixed it in. The oil disappeared!!!
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