Let battle commence! An interactive activity from the Association for Science Education (ASE), where students use video clips of displacement reactions together with animations to investigate the Reactivity Series for metals.

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Ball on a tether released (horizontal plane)

Circular motion: ball on tether released (vertical plane)

Circular motion: horizontal ball in a hoop (Tim holding)

Circular motion: vertical ball in a hoop (clamped)

Circular motion: vertical ball in hoop (Tim holding)

Collisions: inelastic collision top view

Collisions: inelastic little spin

Collisions: large mass into small mass from above

Collisions: oblique collision

Collisions: rebound (v-t)

Collision: small mass into large mass

Collisions: two equal mass head on above (drift)

Collisions: equal mass straight (x-t)

This activity from Subtangent is based on the four colour theory, which is used by mapmakers. Resources include examples of colouring maps correctly, together with additional challenges, which cover a range of ability, for students to try themselves. Solutions for the challenges are also provided.