wood
Clay is not a good material when making a road. When clay dries, it is easily broken. Clay is also not a strong enough material for lots of heavy vehicles to be on it.
Materials with low density, such as foam or hollow plastic, are good choices for making boats that can float for longer periods of time. Additionally, incorporating waterproof seals and a well-designed shape can help improve the buoyancy and overall floatation of the boat.
Fibre glass is a good material to make boats it is a mixture of glass and plastic.
It depends who is making the boat.
Rubber is a good material for making elastic bands because it is flexible, durable, and can be easily stretched and return to its original shape. It also has good elasticity and resilience, making it ideal for repeated stretching and contracting without losing its strength.
making sure the tomb is stable on the sail boat,making sure the rowers are are pulling the resource boat correctly,making sure the sail boat was going the right direction,making sure the resources are secured on the boat,making sure the sailboat gets out of control
Because it is a poor conductor of heat
Water
The answer depends on what you intend to build. Balsa is a very lightweight but flimsy material that is good for building model airplanes, among other things, but may not be useful if you intend on using it for any type of load-bearing.
If you are buying a boat that has been previously used, it is a good idea to inspect the boat in person before making a purchase. It still might be worthwhile to look at a new boat before buying as well.
Yes it does because depending on the materials of the boat and how much their mass is can change the buoyancy of the toy boat. Boat can be designed to have less volume in order for it to have less density and be able to float. So if the material's mass is alot if can make the boat sink. If the material's mass is not alot then it can help the boat float. If the shape is designed to have more volume than mass it will float. If not then it will sink.
A boat floats by keeping water outside, regardless of any material