This week in Year 5, we have been putting on our lab coats and diving into the fascinating world of science! Our focus has been on exploring reversible and irreversible changes, and it’s safe to say we’ve had a lot of fun along the way.
To begin, we set out to investigate reversible changes by separating a mixture of sand, iron, and salt. Armed with tools like magnets, sieves, filters, and even a hairdryer, the children worked methodically to reverse the mixture back into its original components. They used magnets to attract the iron, a sieve to separate the larger grains, and a filter to remove the fine salt from water. It was amazing to see the children’s problem-solving skills and teamwork in action, as they experimented and refined their methods to achieve the best results.
Next, we turned our attention to irreversible changes by baking our very own biscuits! This was an exciting and delicious experiment. The children learned that once butter, flour, salt, and sugar are mixed and baked, the change is permanent – the ingredients can no longer return to their original forms. The science behind this irreversible change is fascinating, and it was wonderful to see the children’s excitement as they made the connection between theory and real-life applications. Plus, the classroom smelled amazing!
These hands-on experiments have helped our young scientists understand the differences between reversible and irreversible changes in a memorable and engaging way. They’ve also honed their observation and critical thinking skills, which are essential in science and beyond.
