Unit 0 Lesson 1 Check for Understanding
Classification of Matter
Directions: For each sample of matter, determine if it is a substance or a mixture. If it is a substance, determine whether it is an element or compound. If it is a mixture, state whether it is homogeneous or heterogeneous.
| Sample | Pure Substance (C or E) | Mixture (Ho or He) | |
|---|---|---|---|
| 1. | Tin (Sn) | element | |
| 2. | salt water | Mixture Ho | |
| 3. | chocolate chip cookie | Mixture He | |
| 4. |  | Element | |
| 5. | Water or Ice H2O | Compound | |
| 6. | air | Mixture ( Ho ) | |
| 7. | salad dressing | Mixture ( Ho ) | |
| 8. |  | Element | |
| 9. | Cl2 | Element | |
| 10. | Ca | Element | |
| 11. |  | Compound | |
| 12. | sandy water | Mixture Ho | |
| 13. | Carbon Dioxide (CO2) | Compound | |
| 14. | Soil | Mixture He | |
| 15. |  | Mixture Ho | |
| 16. | glucose (C6H12O6) | Compound | |
| 17. |  | Mixture He | |
| 18. | Rust (Fe2O3) | Compound | |
| 19. | rocky road ice cream | Mixture Ho | |
| 20. | O3 | Element |