Year 3 Light Sources

This half term, Year Three have investigated light sources and the need for light to be able to see. We investigated materials which best reflected light and the purpose for which we might need reflective materials, for example, to be safe when walking home. We also investigated the reasons why we need to protect ourselves when out in the sun and looked for patterns in the way that the size of shadows change when we move the light source in relation to an opaque object. Fair testing was a big focus in these investigations to ensure that we were manipulating the variables. 

To finish off the term, we combined our learning in history about mummification with an investigation over time on drying out tomatoes. The children chose between rice, flour and salt to absorb the liquid from the tomatoes and then left them for over a week to see the effect. It was very interesting to see the results that each choice had on the tomatoes!