Long answer questions
1. Describe an activity to show that the volumes of different objects are different although
their masses are the same. What do you conclude from this?
2. Explain how would you measure density of an irregular solid using a Eureka can.
3. How do you measure density of a liquid using a graduated measuring cylinder?
"W 4. How do you measure density of a liquid using a density bottle?
5. Compare densities of solids, liquids, and gases.
6. How does a hot air balloon work?
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Therefore, in order for a hot air balloon to work, fire is used to heat the air inside of the balloon so that it is warmer than the cold air outside of the balloon. This results in the balloon floating upwards. Some balloons may also have a small compartment filled with hydrogen gas or helium to aid its flight.
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