Mixtures and Solutions: Quiz #1

WMS—Science 8--DIGIs Name:______

Mixtures and Solutions: Quiz #1 Date:______

MS1, MS2,Teacher: MS3 ______Period:____

MS1: Differentiate between a solute, solvent, and solution.

TO WI WWS JS INCOMPLETE

1. Shardanay dissolves 3g of cocoa powder into 100mL of milk, as shown below.

Label the solution, solute and solvent in the boxes above.

2. Extension (for TO): Solutions can be mixtures of solids, liquids and/or gases. Steel is one such example, as shown below. Identify the solute, solvent and solution in the diagram below.

Steel WMS—Science 8--DIGIs

MS2: Identify water as a solvent.

3. Based on your knowledge of solutions, what does the following list of solutions have in common?

 Acid Rain: contains dissolved hydrosulfuric acid (H2SO4)

 Ocean: contains dissolved oxygen (O2), carbon dioxide (CO2), and salt (NaCl)

 Lake: contains dissolved minerals, oxygen (O2) and carbon dioxide (CO2)

______

MS3: Describe how saltwater (oceans, saltwater lakes) becomes salty.

4. Using the following word bank, explain why the ocean is salty. You may use a labeled diagram if appropriate.

Word Bank evaporation condensation precipitation salt erosion ocean surface runoff WMS—Science 8--DIGIs

For a TO: Include an EXTRA FACT about the water cycle, oceans and/or lakes in your explanation.