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Kitchen Chemistry Adventure

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Kitchen Chemistry Adventure

Freya, Anahera and Mei are helping prepare a dairy-farm morning tea. Read each mini-investigation and answer the questions. Do not taste experiments. Ask an adult before handling kitchen ingredients.

The fizz test

Anahera adds a spoonful of baking soda to a cup of vinegar. The mixture fizzes and makes bubbles. The bubbles are a gas forming as the ingredients react.

1.What did Anahera see when she mixed the baking soda and vinegar?
  • Bubbles and fizz
  • Ice forming
  • The cup disappearing
2.The bubbles show that a gas is forming. True or false?
3.Draw or describe one thing Freya could notice while watching this mixture. Use a clue from the mini-investigation.

A thicker mixture

Mei stirs flour into water in a bowl. The flour spreads through the water, and the mixture becomes cloudy and thicker. No bubbles appear.

4.What happened to the water when Mei stirred in flour?
  • It became cloudy and thicker
  • It turned into a solid rock
  • It made lots of fizz
5.Which mixture made bubbles: flour and water, or baking soda and vinegar?
6.Circle the best word: Flour and water make a mixture that is (thick / invisible).

Spot the change

At morning tea, Freya stirs sugar into warm water. The sugar seems to disappear, but it has dissolved and is still in the water.

7.The sugar has vanished forever when it dissolves. True or false?
8.Which action helps sugar dissolve in water?
  • Stirring
  • Looking at it
  • Putting it beside the cup
9.Freya wants to compare how fast sugar dissolves in warm and cold water. What should she keep the same in both cups? Name one thing, such as the amount of sugar or the amount of water.
10.Draw one kitchen mixture you would like to investigate safely with an adult. Add a label or tell what you would look for.
Draw your mixture and add a label showing what you would watch for.

3 printable pages

  • Kitchen Chemistry Adventure, page 1 of 3: The fizz test

    Page 1

  • Kitchen Chemistry Adventure, page 2 of 3: A thicker mixture, Spot the change

    Page 2

  • Kitchen Chemistry Adventure, page 3 of 3: 9. Freya wants to compare how fast sugar dissolves in warm and cold water. What

    Page 3

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