NEW ZEALAND TARANAKI

Acids you can eat!

Usually in science experiments the sense of taste is the one we don't use! But here's the exception to the rule....


This is the only time you should ever taste acids; these are food acids and are safe to eat. Other acids in the lab are poisonous.

If you are not sure or a bottle does not have a label on it saying what is inside, check with an adult that its OK to use.

Please read the important reminder below!

Sherbet recipe:

  • 1 Tablespoon Fruit drink powder
  • 1 teaspoon Citric acid
  • 1 teaspoon Tartaric acid
  • 1 teaspoon Baking Soda
  • 1 cup Icing Sugar.
  • Grind and mix well. Serve in paper bags.Yummy!

The Citric acid and Tartaric acid are weak acids. That is why they are safe to eat.

When dry, they are not able to react with other substances. But when wet with your saliva or spit, they taste sour and react with the baking soda.

Baking soda reacts with the acid and gives off carbon dioxide gas. Vinegar contains another food acid; Acetic acid.

You might be surprised to learn that your stomach contains a very powerful acid, called Hydrochloric Acid (HCl). Your body uses this to help dissolve and breakdown food into very small particles so your body can use it. See if you can find out why it doesn't dissolve you!

 

IMPORTANT REMINDER....

Usually in science experiments the sense of taste is the one we don't use! Many chemicals look like water but are very poisonous if you accidently drink them.

NEVER TASTE CHEMICALS TO SEE WHAT THEY ARE!

ALWAYS ASK AN ADULT FOR HELP WHEN CARRYING OUT CHEMISTRY EXPERIMENTS.


FIND OUT MORE:-

  1. Learn more about acids and testing for acids.
  2. Make your own indicator to test for acids using plant dyes.
  3. Build a rechargable battery that uses sulphuric acid.
  4. Use the Baking Soda and vinegar again to build a model volcano
  5. Find out what fruits contain citric acid.
  6. Tannic acid can be used to make a type of ink. Try it out here...
  7. The interactive pages...identify these pieces of lab equipment
  8. The interactive pages...weird metals and gases hide in this Periodic Table

RETURN TO FUN! Science Activities and Technology Projects

 

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