Benchmark on Chemistry on Dec 6.
This week we are wrapping up the relationship between properties of matter and the changes that happen to that matter.
We performed multiple labs to prove the possible signs of a chemical change, including gas, color changes, precipitates, and heat and light.
Precipitate
Instant Sunshine: 2 clear liquids mix and form a yellow solid and yellow liquid in a chemical reaction
Glow Worms: 2 yellow translucent liquids were mixed together in a chemical reaction
Color Change
Universal indicator mixed with milk of magnesia shows the series of color changes that happen when we add vinegar
Gas
We blew up a balloon by mixed vinegar and baking soda in a test tube and placing the balloon on top to fill it. We also mixed calcium chloride with baking soda to create a bag full of gas.
North Pole Bureau of Investigations: Case 1225
We also solved a mystery about mixed-up cookie ingredients, by testing for reactions with iodine, vinegar and water. Ask yourself or your student, what the mystery ingredients turned out to be.
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