Today (October 4), we did notes on buoyancy. We also watched a Bill Nye video. Down below, you will see what we did.
What does it mean to "displace" water? Explain.
It is when water moves out of the way due to an external object/force.
Explain why the clay ball sinks but the same size clay boat floats.
The shape (of the clay) makes the difference. > More surface area.
Things displace as much water as they weigh.
Who was Archimedes? What did he discover?
Archimedes was a Greek philosopher/scientist who discovered the results of water being displaced. He also discovered volume.
How do fish control their buoyancy? Explain.
Fish have swim bladder. Inside their swim bladder, there are air bubbles that the fish use to control how they swim.
Define the following:
★ Negatively Buoyant ★
The object sinks.
★ Positively Buoyant ★
The object floats.
★ Neutrally Buoyant ★
The object does not float nor sink. It stays in the middle/ in between/ in neutral.
Explain how hot air balloons work.
People configure how much hot air they'll use to make the hot air balloon go up or down. If you displace hot air, you go up, you'll float. FACT: It is known that if the weather outside is cold, hot air balloons work much, much better.
It is when water moves out of the way due to an external object/force.
Explain why the clay ball sinks but the same size clay boat floats.
The shape (of the clay) makes the difference. > More surface area.
Things displace as much water as they weigh.
Who was Archimedes? What did he discover?
Archimedes was a Greek philosopher/scientist who discovered the results of water being displaced. He also discovered volume.
How do fish control their buoyancy? Explain.
Fish have swim bladder. Inside their swim bladder, there are air bubbles that the fish use to control how they swim.
Define the following:
★ Negatively Buoyant ★
The object sinks.
★ Positively Buoyant ★
The object floats.
★ Neutrally Buoyant ★
The object does not float nor sink. It stays in the middle/ in between/ in neutral.
Explain how hot air balloons work.
People configure how much hot air they'll use to make the hot air balloon go up or down. If you displace hot air, you go up, you'll float. FACT: It is known that if the weather outside is cold, hot air balloons work much, much better.