Monday, August 19, 2013

Measurement Monday

Today we made bread and tried to make a fizzy lemonade drink with our acids and bases.  We finally got the recipe right for the last four kids who thought it was yum,  everyone else, well I guess baking soda isn't your favourite taste.  We all learn from our mistakes though!





 









3 comments:

  1. Hi my name is Irirangi from Putaruru C2.

    I was looking at your blog post about baking. The photos I looked at were very interesting and looked fun at the same time. Baking and also using chemical things is what I like to do. I really enjoyed looking at your photos.

    Do you think you could explain more about mixing the base with the acid please.


    From Irirangi

    ReplyDelete
    Replies
    1. We added 1 tsp of baking soda to a jug of water, some food colouring and the juice of 6 lemons. Mixing an acid (lemon juice) and a base (baking soda) made a reaction which makes CO2 gas and is fizzy. Fun

      Delete
    2. Hi Irirangi,

      I have sent Mr Quinn the link for our fizzing and foaming science. We started by making sherbert in class. We like to do lots of science and cooking in our maths lessons. It gives us good problems to nut out. Here is the sherbert recipe for you to try. Jelly crystals work really well instead of raro.


      .
      Sherbet fizz

      What you need
      ½ cup of icing sugar
      ¼ teaspoon of citric acid
      ¼ teaspoon of baking soda
      ¼ teaspoon of tartaric acid
      ½ tablespoon of powdered cordial
      A teaspoon each for tasting
      A stirring spoon
      Measuring spoons
      A mixing bowl

      What you do


      1.Place the icing sugar in the mixing bowl. Taste a little of this.
      2.Taste the powdered cordial. Mix it in with the icing sugar. Taste the resulting mixture.
      3.Taste a small amount of baking soda. Mix it in with the previous ingredients. Taste the resulting mixture.
      4.Taste the citric acid and then the tartaric acid. Add these two ingredients to your mixture.
      5.Finally, taste your finished product.

      Delete