Part 1: Paired Web Quest — 20 minutes

Work with a partner. Use teacher-approved websites. Record the organisation or website name, then write ideas in your own words rather than copying.

Organisation or website name: ______________________________________________

Word bank: solute solvent solution concentration dilute volume

Sentence stems: “A solution is more concentrated because…” “Dilution happens when…” “The solute is… and the solvent is…”

1. What is concentration in a solution?

2. What is dilution? Describe what happens when solvent is added.

3. Find one household or environmental example of a concentrated solution and one dilute solution.

4. Explain how to dilute 100 mL of cordial safely and fairly. Include what happens to the concentration.

5. Why can seawater be described as a solution? Identify its solute and solvent.

One useful fact I found:

My rewritten explanation of concentration or dilution:

Part 2: Compare Solutions

Each ● represents 1 g of solute. Each cup represents 100 mL of solution. Compare the amount of solute per given volume.

Solution A: ● 100 mL

Solution B: ● ● 100 mL

Solution C: ● ● ● 100 mL

6. Rank Solutions A, B and C from most concentrated to most dilute. Explain your reasoning.

7. Solution X contains 2 g of salt in 100 mL. Solution Y contains 4 g of salt in 200 mL. Are their concentrations equal or different? Show your thinking.

8. Complete the sentence: A solution becomes more dilute when the same amount of solute is mixed with a __________ volume of solvent.

Answer: ______________________________________________

Part 3: Individual Assessment

9. Define concentration in your own words.

10. Explain how to dilute 100 mL of cordial.

11. Compare 1 g of solute in 50 mL with 1 g of solute in 100 mL. Which solution is more concentrated? Explain.

12. Give one real-life example of dilution.

Multiple-Choice Questions

Choose the best answer for each question.

13. What is the solute?

The substance that dissolves

The substance that does the dissolving

The container

14. What is the solvent in salty water?

Salt

Water

The solution

15. What is a solution?

An evenly mixed solute and solvent

Only the solid part

A substance that cannot dissolve

16. Concentration describes the amount of solute compared with the…

Colour of the solution

Volume of the solution

Temperature of the room

17. Which change makes a solution more concentrated?

Adding more solvent

Adding more solute to the same volume

Adding an empty cup

18. What does dilution mean?

Adding solvent to reduce concentration

Making solute disappear

Heating a solution until it boils

19. Which solution is more concentrated?

2 g of sugar in 100 mL of water

1 g of sugar in 100 mL of water

They are equally concentrated

20. Which pair has equal concentrations?

2 g in 100 mL and 4 g in 200 mL

1 g in 100 mL and 4 g in 100 mL

2 g in 100 mL and 2 g in 200 mL

21. Which statement is correct?

A darker solution is always more concentrated.

Concentration depends on solute and volume.

A dilute solution contains no solute.

22. If some solvent evaporates and the solute remains, the solution usually becomes…

More concentrated

More dilute

Unchanged in concentration

Concentration in Solutions Worksheet

Concentration in Solutions Worksheet

Part 1: Paired Web Quest — 20 minutes

Part 2: Compare Solutions

Part 3: Individual Assessment

Multiple-Choice Questions

About This Worksheet

Free in Kuraplan

Print-Ready

AI-Generated

For Teachers & Parents

Need a custom version of this worksheet?

More Science Worksheets

Danforth: Authority and Conscience

Natural Resources Science

Natural Resources Science

Vitamins, Minerals, and Protein Science

Exploring Science Materials

Waka Buoyancy Science Worksheet

Science Skills Made Simple

Safe Science Inquiry Worksheet

Explore more free resources