Mixtures and Solutions

What You'll Learn

Solutions are special mixtures where one substance dissolves completely in another. Salt water is a solution where salt (solute) dissolves in water (solvent).

Key Words

neutron
electron
ion

Steps

Step 1 — Read

Read about Matter and Atoms and write down three key facts.

Step 2 — Do

Mix baking soda and vinegar in a sealed bag. Weigh the bag before and after. Did the mass change? Explain why or why not using the law of conservation of mass.

Step 3 — Observe

Compare the before and after states.

Step 4 — Record

Write your conclusion: did the results match your hypothesis? What would you change next time?

Check Your Understanding

Question 1

1 of 3

How is a compound different from a mixture?