This lesson focuses on teaching children that forces can be transferred from being balanced to unbalanced using pushes and pulls. The activity involves completing a paragraph demonstrating their understanding of forces and identifying examples of balanced/unbalanced forces within the classroom. The success criteria includes: * I know what forces are measured in * I know that a force is a push or pull * I can explain the difference between a balanced and an unbalanced force * I can place a force on an object * I can draw and label a diagram explaining what a force looks like

Here is an activity/worksheet I have used to teach children across KS2 to investigate whether shape affects air resistance, using the following success criteria: • I know forces affect how objects move • I can explain what air resistance is • I can explain how air resistance affects real life objects • I can design objects with good/bad air resistance The activity involves children filling in the gaps in a paragraph to demonstrate their understanding of air resistance, then identifying what air resistance might be happening in picture scenarios, before being creative and designing two paper aeroplanes; one with bad air resistance, and the other with good - explaining how they can predict what will happen.

This lesson recaps what materials are and different examples. It then focuses on why materials are chosen for specific purposes, the properties of materials to suit a particular purpose (e.g. why we wear clothes made out of cotton), and ultimately the lesson focus is to compare different materials and conduct experiments to select the best material for a bike seat. Included is a whole lesson presentation and worksheet for comparing the materials.