Our volcano was put to good use when we created a simulation of an eruption using a mixture of white vinegar (ascetic acid: CH3COOH), washing up liquid and food colouring and Bicarbonate of Soda (baking soda: NaHCO3) and warm water. Although this reaction was quite good we decided to create a bigger eruption using our diet cola and Mentos. This was our recreation of the Mount Krakatoa eruption!
Year 5 investigated how to separate solids from a mixture. Sand, salt, metal objects and stones were mixed together. The groups then used magnetic attraction to extract metal from the mixture. The teams then sieved the mixture to remove larger particles. Water was then added to the mixture to create a solution and this was then filtered to remove the sand and smaller particles of stone etc. Finally, evaporation was used to get rid of the water so that the salt crystals could be reclaimed.
During our lessons on classifying organisms, we looked at Carl Linnaeus' system. Then, we started to create classification keys, which we used to classify a variety of sweets. Yummy!
Year Six have been learning about classifying organisms and have been studying the work of Swedish scientist Carl Linnaeus. During these tasks, we created a mnemonic to help us remember each level of his classification system.