FIZZ

We mixed some powders today and made sherbet. Here is the recipe we used (although we times it by 30!)

1 tablespoon icing sugar

1/4 teaspoon baking soda

1/4 teaspoon citric acid

1 teaspoon jelly crystals.

Mix all the ingredients together until there are no lumps. Make sure you keep everything dry so there is no reaction before you eat it. Best eaten with a lollipop.

When the sherbet hits your mouth there is a chemical reaction with your saliva.

May 23rd

Today in Science we looked at "Splitting Inks." We each drew a snake with felt pens. We used lots of different colours. We then dipped our pictures in water and watched the ink spread. Different inks travel at different speeds making patterns. This is called chromatography.

We learned that our banknotes use special inks that are hard to copy. If the police suspect someone has made their own banknotes they can use a chromatography test to see what ink has been used.

SCIENCE

Every Friday we've been going to the science room to do different topics around science. This week we looked at crystals.

We dissolved washing soda in boiling water. We kept adding more and more washing soda until no more would dissolve. Then we hung a paper clip in the water and we're waiting for crystals to appear.