We compare the density of oil, salt water and fresh water using displacement tanks.

We demonstrate the effects of imbalances of pressure. A metal can is crushed by atmospheric pressure.

We make a Cartesian diver using a drinking straw and sticky tack.

We lower a helium-filled balloon into liquid nitrogen to see how the change in temperature affects its volume.

We use a Hero's engine model to show how equal and opposite forces can cause propulsion.

We use eggs to show how different rates of deceleration affect the outcome of collisions.

We interleave the pages of notebooks to see how hard it is to pull them apart.

We use a plumb line and hook to find the centre of gravity of an irregularly shaped piece of card.