Can someone be a solid and a liquid at the same time? sounds impossible! what do u think
you need cornstarch, measuring cup, mixing spoon, and a bowl
step one:place one cup of cornstarch in a large bowl. step two:add about one fourth through one half cup of water and mix to a thick paste. step three: the powder is solid the water is a liquid do u think the mixture will be a solid or a liquid? step four: actually its both with your hands knead a handful of mixture it will become firm as long as u keep kneading. step five: stop kneading quickly puch the mixture with your fist it feels hard may even crack step six: watch the mixture now that you have stopped kneading it will return to its original form. step seven push your fingers into it very slowly they will slide in as though the mixture is a liquid raise your hands and see it pour through your fingers.

what happens as it strands, the mixture is a liquid its just water with powder floating in it however when u hit it the water molecules are forced into the middler of each grain of powder so the mixture is solid.