Review the key ideas from Lessons 6-10, then test yourself with 10 multiple-choice questions and 3 short-answer questions.
Quick Review
Focus:
Key terms: Change of state, Melting, Freezing
Focus:
Key terms: Solute, Solvent, Solution
Focus:
Key terms: Conservation of mass, Closed system, Open system
Focus:
Key terms: Respiration, Photosynthesis, Combustion
Focus:
Key terms: Hazard, Risk, Safety goggles
Multiple Choice (10 questions)
1. What happens to the temperature of pure ice while it is melting?
2. Which process is the reverse of condensation?
3. In a saltwater solution, which is the solvent?
4. Which method would you use to separate sand from water?
5. According to the law of conservation of mass, what happens to mass during a chemical reaction in a closed system?
6. Why does a piece of iron appear to gain mass when it rusts in open air?
7. Which gas is produced during photosynthesis?
8. What type of reaction occurs inside a battery to produce electricity?
9. What does a risk assessment help you do?
10. Which piece of equipment protects your eyes during practical work?
Short Answer (3 questions)
Put what you have reviewed to the test! Jump through the checkpoint questions in game form.
Play GameTick the box when you have finished the questions and played the game.