Show:
Floating/Sinking
Stability and Balance
Materials and Design
Definitions
Parts of a Boat
100
Does a metal key sink or float?
A metal key sinks.
100
True or False: The wider the boat is, the more unstable it is
False
100
True or False: The best way to patch up a hole is with your paper.
False
100
Waterproof
Does not let water in
100
What is the mast and what does it do?
it is a tall pole that holds up the ships sails
200
Does a pumpkin sink or float?
a pumpkin floats
200
Why does having two hulls in a catamaran make a boat more stable?
it is wider making it more stable
200
What should we coat a paddle boat with and why?
We should coat it with wax crayon because it is waterproof.
200
Sink
To sit below the surface of a liquid or at the bottom of a liquid
200
Where is the bow and the stern?
The bow is the front of the boat and the stern is the back of the boat.
300
How can we make a ball of plasticine float?
Make it into a boat-like shape
300

What is a boat part that makes the boat more stable?

the keel
300

What is good material to make a boat out of?

Wood, metal, plastic
300
Float
to sit at or above the surface of a liquid
300
What is the hull?
The hull is the bottom part of the boat that stretches from the front to the back.
400
A ball of plasticine sinks because it is _________ (more/less) dense than water.
It is more dense than water.
400
What will happen if the load on the boat is put all on one side?
The boat will tip
400

What should the shape of the paddle boat be at the front of it to make it move faster in water?

narrow/pointy
400
Buoyancy

to float (the upward force of the water pushing up on the surface of an object)

400
What does the rudder do?
flat piece of wood/metal/plastic that is at the back of the boat that steers the boat
500
What are the two things that make an object sink or float?
the type of material the object is and the shape of the object
500
Which material is less stable, wood or Styrofoam?
Styrofoam.
500
What are the three requirements to make a plasticine boat float?
high walls, wide hull, no holes
500
Density
How much an object weighs relating to its size
500
What does the keel do?
It is a heavy piece of wood/metal that increases stability (prevents the boat from tipping over)