Thursday, July 30, 2015

Science Experiment

Image result for baking soda and lemon juice

           Fizzing and Foaming

We want to find out which liquids are acid,we know that when we combine baking soda with vinegar we get a fizzing  and foaming reaction. Our teacher told us that baking soda is a carbonate and vinegar is an acid.
I think…
lemon juice - fizz
tomato - juice nothing
milk - foam
water - nothing
tea - nothing
grape - foam
What we need
  • baking soda
  • 6 small containers
  • 3 teaspoons the same size
  • tomato juice
  • lemon juice
  • grape juice
  • tea
  • water
  • milk
What we will do
  1. Put in 1 level teaspoon into each of the 6 containers.
  2. Add exactly the same amount of liquid to each of the containers.
  3. Observe carefully to see if there are any changes, smells,bubbles or sounds.
The lemon juice did fizz with the baking soda, the tomato foamed a little, the grape juice foamed, the tea did nothing and so did the milk and water.
What Farah, Manish, Aryan and me  found out is that when you mix all of them together after they were mixed they don’t fizz or foam.
Science Idea

Baking soda, also known as bicarbonate of soda, is a chemical compound made of sodium, hydrogen, carbon and oxygen. It is an alkaline substance that is similar to a salt and it reacts to acidic substances, including most liquids. The reaction gives off carbon dioxide gas. It exists naturally in bile and neutralizes stomach acids. Baking soda is often used in baking, personal cleansers and science projects because of its ability to react chemically with acids.

(This part was copied and pasted by Mrs Adams)
                                                                                                                            by Nadine

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