Q.1.
If you evaporated sea water, leaving the salt behind, how could you collect the water?
Q.2.
How could a mixture of salt and sand be separated?
Q.3.
Which of the following is an example of a mixture?
Q.4.
You are trying to clean some muddy water by using a filter. Which of these materials would you use in building a home made filter?
Q.5.
Which one of the following is a solution?
Q.6.
What might you use to separate a mixture of sand and iron filings?
Q.7.
Which of the following would dissolve in water?
Q.8.
A tea bag is made from tea leaves and an especially porous paper. Besides being a container for the tea leaves, what is the purpose of the paper?
Q.9.
What method would be used to separate a solution of sugar and water?
Q.10.
What do we call a material that will not dissolve in water or another liquid?