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11 Cards in this Set
- Front
- Back
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Heterogeneous Mixtures |
When the components in the mixture aren't evenly distributed. E.g. Cereal, mnms |
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Homogeneous Mixtures |
When the components in the mixture are evenly distributed. E.g. Salt and Water |
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Mixtures |
A substance that has been mixed with another. E.g. Cake, blood, bread etc. |
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Pure substance |
A substance that is completely pure. It hasn't been mixed and no other substances are involved. |
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Decanting |
Decanting is when the heavier item stays at the bottom of the pan, glass etc. The lighter substance (liquid) goes out but the heavier item stays. E.g. Panning for Gold: When you separate the water and the gold stays at the bottom and doesn’t come out with the water |
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Filtration |
When you use something to separate two mixtures. A filter is a barrier with many small holes in it to let smell etc come through. E.g. Tea bag: When you usethe teabag to keep the leaves from the tea, Pasta, Gas mask. |
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Magnetic Separation |
When the magnet seperates the mixtures attracted to magnets (metal) from the other stuff. E.g. Junkyards: Separate the metal from the garbage Magnetic belts |
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Evaporation & crystallisation |
Evaporation is when the water goes up into the sky. E.g. When you're at thebeach and the salt water is in your hair the water goes into the sky and thesalt stays behind |
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Solutions |
When a mixture does not separate by itself - a solution. When you mix sugar and water together, the sugar disappears because it dissolves evenly into the water. |
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Solvent and Solutes |
The substance dissolving is called the solute. The liquid into which the solute dissolves into is called the solvent. |
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Emulsions |
An emulsion is a colloid of two or more liquids. Usually one liquid is the 'base' and the other is broken into tiny droplets spread throughout the 'base' liquid. E.g. milk, with tiny droplets of fats and oils spread throughout the base (which is water), another example could be chlorine water. |
