One piece of foil will sink and the other will float. The piece of foil scrunched above water traps some of the air, which...

At home 5-11 11-14

Food colouring and oil don't mix, and as the two separate the food colouring sinks into the water, leaving trails of colours.

At home 5-11 11-14

The salt increases the density of the liquid, which means less of it is picked up when the straws are lifted.

At home 5-11 11-14

After about 20 mins the juice and the water will have swapped places because water is less dense than sugary fruit juice.

At home 5-11 11-14

The diver sinks when you squeeze the bottle, and rises when you let go. Squeezing the bottle squeezes everything inside it...

At home 5-11 11-14

You should find that the orange floats when its skin is still on, but sinks after you peel it off! Orange skin is full of tiny...

At home 5-11 11-14

You should find that the diet or unsweetened drinks float and the sugary ones sink. Now weigh each can. Whether something...

At home 5-11 11-14