Using Resources

What does mixture consist of?

• A mixture consists of elements not chemically combined together.
• A mixture consists of two or more elements or compounds not chemically combined together.
• A mixture consists of compounds not chemically combined together.

How can mixture be seperated?

• filtration
• crystallisation
• chromatography

What is chromatography?

• Chromatography is a method for separating undissolved substances from one another.
• Chromatography is a method for separating substances.
• Chromatography is a method for separating dissolved substances from one another.

What is evaporation?

• Evaporation is used to separate a soluble solid from a liquid.
• Evaporation is used to separate a liquid from a liquid.
• Evaporation is used to separate a unsoluble solid from a liquid.

What is filtration?

• Filtration can be used to remove solid from solid.
• Filtration can be used to remove solid from liquid.
• Filtration can be used to remove liquid from liquid.

What is distillation?

• Distillation is a process which uses evaporation in order to obtain a solvent from a solution.
• Distillation is a process which uses evaporation and condensation in order to obtain a solvent from a solution.
• Distillation is a process which uses condensation in order to obtain a solvent from a solution.

What is potable water?

• Water that is not safe to drink is called potable water
• Water that is safe to drink is called potable water

Is potable water a pure water?

• No
• Yes

What is the first stage of producing potable water?

• passing the water through filter beds
• choosing an appropriate source of fresh water
• sterilising

What is the second stage of producing potable water?

• passing the water through filter beds
• choosing an appropriate source of fresh water
• sterilising