Questions:
1.Explain how to seperate solid particles of different sizes by sieving.
2.Explain how to separate indoluble solids from liquids by filtering or decanting.
3.Explain how to recover dissolved solids by evaporating the liquid from the solution.
4.Understand that we can decide how mixtures might be separated using knowledge of solids, liquids and gases.
Answers:
1. Use a sieve to put the sand and gravel on the sieve. The sand will come out.
2. Some can be separated by decanting or filtration.
3. When you evaporate salt water, salt is left behind.
4. We can separate alcohol from water by using a condenser.
1.Explain how to seperate solid particles of different sizes by sieving.
2.Explain how to separate indoluble solids from liquids by filtering or decanting.
3.Explain how to recover dissolved solids by evaporating the liquid from the solution.
4.Understand that we can decide how mixtures might be separated using knowledge of solids, liquids and gases.
Answers:
1. Use a sieve to put the sand and gravel on the sieve. The sand will come out.
2. Some can be separated by decanting or filtration.
3. When you evaporate salt water, salt is left behind.
4. We can separate alcohol from water by using a condenser.