BUOYANCY
1. What does it mean to displace water? Explain.
Displacing water means that an object pushes or moves the water out of the way. The object displaces the water.
2. Explain why the clay ball sinks but the same size clay boat floats?
The clay ball sinks because of it's shape. The clay boat floats, because it's in the right shape (surface area which will make it float).
3. Things displace as much water as they get heavier.
4. Who was Archimedes? What did he discover?
Archimedes was a greek scientist that discovered buoyancy by putting subjects into bath tub filled with water.
5. How does fish control their buoyancy? Explain.
Fishes have a swim bladder that fills their bladder with air, so that they can control their buoyancy how they sink or float.
6. Define the Following:
-Negatively Buoyant:The object sinks.
-Positively Buoyant: The object floats.
-Neutrally Buoyant: The object doesn't float or sink.
7. Explain how hot air balloons work?
The hot air balloon works, because they have buoyancy too. It floats in the air, because it displaces the cool air to go higher. With hot air the ballon goes up faster than the cool water.
Displacing water means that an object pushes or moves the water out of the way. The object displaces the water.
2. Explain why the clay ball sinks but the same size clay boat floats?
The clay ball sinks because of it's shape. The clay boat floats, because it's in the right shape (surface area which will make it float).
3. Things displace as much water as they get heavier.
4. Who was Archimedes? What did he discover?
Archimedes was a greek scientist that discovered buoyancy by putting subjects into bath tub filled with water.
5. How does fish control their buoyancy? Explain.
Fishes have a swim bladder that fills their bladder with air, so that they can control their buoyancy how they sink or float.
6. Define the Following:
-Negatively Buoyant:The object sinks.
-Positively Buoyant: The object floats.
-Neutrally Buoyant: The object doesn't float or sink.
7. Explain how hot air balloons work?
The hot air balloon works, because they have buoyancy too. It floats in the air, because it displaces the cool air to go higher. With hot air the ballon goes up faster than the cool water.