Understanding Dissolving
A Grade 7 science worksheet exploring the concepts of dissolving, solutions, solutes, and solvents.
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Standards
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Understanding Dissolving
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Read each question carefully and answer to the best of your ability. This worksheet will test your knowledge of dissolving and solutions.
1. What is the process called when a substance mixes evenly with a liquid to form a solution?
Melting
Dissolving
Boiling
Evaporation
2. In a sugar water solution, what is the sugar considered?
Solvent
Solution
Solute
Suspension
3. The substance that does the dissolving is called the .
4. When a substance dissolves, its particles spread out evenly to form a mixture.
5. A solution that contains the maximum amount of solute that can be dissolved at a given temperature is called a solution.
6. Stirring a mixture will always decrease the rate of dissolving.
True
False
7. Increasing the temperature of a solvent generally increases the rate at which a solid solute will dissolve.
True
False
8. Describe two factors that can affect how quickly a solid dissolves in a liquid.
9. Provide an example of a common solution you encounter every day and identify its solute and solvent.
Use the words below to complete the sentences.
10. In a salt water mixture, salt is the and water is the .
11. When you mix sugar into tea, the resulting mixture is called a .
12. If you keep adding sugar to water until no more will dissolve, you have created a solution.