realizată de Nelson Mandella 17 ani în urmă
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By spinning the mixture quickly the solids go to the bottom straigt away.
A liquid that is less dense will float on top so when you slowy realese the more dense liquid the less dense liquid is left.
The liquid soaks through the paper disolving substances on the paper. Some of them are absorb through the paper faster so its easier to tell which ones they are.
Distillation evaporates water leaving behind impurities such as salt and cools the gas into liquid again.
If the mixture has metals that are attracted to a magnet in it magnetism can be used to remove them.
This method is used by heating water untill it turns into a gas leaving behind the sediment.
A method of separation for a mixture of a liquid and a solid. The sediment is left in the filter paper
Electric charges a given off when certain objects rub against each.
Bouyancy makes an upwards push on a boat or something in the water.
When an object is moving quickly the air particles push against the object.
Friction occurs when two things rub against each other. Frictional force works by opposing motion.
Magnetic force attracts and repels different types of metals.
Gravity is the force of attraction between two objects like a human and the earth.
A force is either a push pull or twist. It can either be contact or non-contact.
