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Lesson 26 of 84 · Matter and Atoms
LessonThe Particle Model of Matter
What You'll Learn
A mixture contains two or more substances that are not chemically combined. You can often separate a mixture using physical methods like filtering, evaporating, or using a magnet.
Key Words
- product
- conservation of mass
Steps
Step 1 — Read
Read about Matter and Atoms and write down three key facts.
Step 2 — Do
Separate a mixture of sand, salt, and iron filings using a magnet, water, and a filter. Record each step and what you separated.
Step 3 — Observe
Draw a detailed diagram of what you observe.
Step 4 — Record
Write a conclusion: what did your results show? Did they match your prediction?
Check Your Understanding
Question 1
1 of 3What is sublimation?