1) What does it mean to " displace" water? Explain
When water is pushed out of the way due to an outside force or object.
2) Explain why the clay ball sinks but the same size clay boat floats.
The shape of it made a difference and it is also called surface area.
3) Things displace as much water as they weigh.
4) Who was Archimedes? What did he discover?
Archimedes was a Greek scientist who discovered that you can figure out how much volume of an object there is if he knew how much water it displaced.
5) How do fish control their bouyancy? Explain.
Fish control their bouyancy because they have swim bladders which helps them regulate the air inside them to keep them buoyant.
6) Define the following:
Negatively Bouyant: When an object sinks.
Positively Bouyant: When an object floats.
Neutrally Bouyant: When an object is not sinking or floating ( middle )
7) Explain how hot air balloons work.
Hot air baloons float by bouyancy. It floats in the air, because it displaces the cool air to go higher.
When water is pushed out of the way due to an outside force or object.
2) Explain why the clay ball sinks but the same size clay boat floats.
The shape of it made a difference and it is also called surface area.
3) Things displace as much water as they weigh.
4) Who was Archimedes? What did he discover?
Archimedes was a Greek scientist who discovered that you can figure out how much volume of an object there is if he knew how much water it displaced.
5) How do fish control their bouyancy? Explain.
Fish control their bouyancy because they have swim bladders which helps them regulate the air inside them to keep them buoyant.
6) Define the following:
Negatively Bouyant: When an object sinks.
Positively Bouyant: When an object floats.
Neutrally Bouyant: When an object is not sinking or floating ( middle )
7) Explain how hot air balloons work.
Hot air baloons float by bouyancy. It floats in the air, because it displaces the cool air to go higher.