Floating
Building
Cargo
Boat Parts
Displacement
100
Why do boats float?
Buoyancy
100
Why are the design and the materials of your boat important?
Without the proper shape and materials, your boat will not float.
100
If you were to carry a large cargo, would you rather have a narrow boat or a very wide boat?
Very wide boat
100
What is the part of the boat that catches wind to move it forward?
The sail
100
What does displacement mean?
The object placed into the water will push away the surrounding water in order to float.
200
Why does buoyancy make boats float?
If something is buoyant, it is lighter than the water and can float on top. If an object is heavier than the water, it will sink.
200
When your boat does not soak up any water, it can be called...
waterproof
200
Where on your boat would you begin to load your cargo?
In the middle
200

What is the part of the boat that keeps it stable?

The keel - center from front to back for balancing

200

Who discovered the idea of displacement?

Archimedes
300
List three materials that float and three materials that sink.
Float: wood, air mattress, glass jar, leaf, feather, rubber duck, sponge, ice, styrofoam


Sink: brick, regular mattress, paper clip, penny, car, couch, TV, your desk

300
How do metal boats float?
They are shaped to take up more surface area in the water and are hollow so they are lighter than the water surrounding it.
300
What would happen if you loaded all of your cargo at the back of your boat?
The back of the boat would tip over
300
What does stable mean?
Your boat is balanced and will not tip over in the water.
300
How was displacement discovered?
Archimedes sat in a bathtub that was filled to the top and the water overflowed.
400
How do life jackets work?
They are filled with extremely light and airy material, which is lighter than water, so it can prevent you from sinking in the water.
400
What will happen to your boat if it is not airtight?
Even with a tiny hole or opening, water will get into your boat and begin to sink because of the heavier weight of the water.
400
How should you organize cargo on a boat?
The cargo needs to be distributed evenly throughout the boat
400
What is the hollow part of the boat located at the bottom?
The hull
400
What did Archimedes yell out when he discovered the idea of displacement?
Eureka!
500
What will happen if you are in the water floating on your back and you deeply inhale air?
You will float more toward the top of the water.
500
What must you remember when sealing and bonding joints on your boat?
Make sure all joints and openings are completely sealed or bonded with waterproof materials that will last in the water.
500
Which is an easier cargo for your boat to carry: chests filled with gold coins or a pile of logs?
A pile of logs
500
What year did the Titanic sink?
1912
500
What year was Archimedes born?
287 BC
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