This week, Year 3 became scientists as they carried out a fascinating enquiry based on the question:
“Which substance is the most effective at cleaning dirty coins?”
The children were given a range of everyday substances to test, including both acidic substances such as lemon juice, vinegar and fizzy drinks, and alkaline substances such as toothpaste and soapy water.
Before starting the investigation, the children made predictions about which substance would clean the coins most effectively and which would be the least effective. They also discussed which substances they thought were acidic or alkaline and considered whether this might affect the cleaning results.
Working scientifically, the children carefully observed the condition of the coins before and after testing each substance. They recorded their findings and compared the effectiveness of each cleaning solution.
The investigation sparked lots of discussion, with pupils making links between their results and the properties of different substances. Year 3 demonstrated excellent scientific skills by making predictions, carrying out fair tests, observing changes and drawing conclusions from their results.
A fantastic afternoon of scientific discovery was enjoyed by all!
