Science Club

S1 pupils are invited to come along to science every Wednesday lunch time at 12:45 until 1:15.

This experiment is called the elephants toothpaste and is a popular teacher demonstration in science clubs. The process involves adding a chemical catalyst in this case Potassium Iodide to Hydrogen Peroxide.

The catalyst breaks down the hydrogen peroxide into water and oxygen. The Water mixes with the washing up liquid that was added which creates the foam and the rapid production of Oxygen causes the foam to be pushed out of the tube. Food colouring is added to make striped like toothpaste.

P1210666JPG
P1210667JPG
P1210668JPGP1210669JPGP1210670JPGP1210671JPGP1210685JPGP1210686JPG

Today’s experiment shows how plants take in nutrients. By adding food colouring to water and then seeing how a flower will change colour when it takes in the water.

P1220014JPG P1220053JPG P1220055JPG P1220056JPG P1220062JPG P1220072JPG