1. The density of air is 1.2 g/L at 25 °C. TRUE FALSE
2. Mass is measured with a balance ⚖️. TRUE FALSE
3. When a balloon is deflated 🎈, the mass of the balloon increases. TRUE FALSE
4. Volume is measured with a graduated cylinder 🧪. TRUE FALSE
5. A classroom can contain at least 100 kg of air. TRUE FALSE
6. Warm air is denser than cold air. TRUE FALSE
7. The water-displacement method can be used to collect a gas. TRUE FALSE
Next exercise 🔀