I can distinguish between materials that sink in water and those that float.
I can alter/add to a floating object so that it will sink, or alter/add to a non-floating object so that it will float.
I can assemble materials so they will float, carry a load and be stable in water.
I can modify a watercraft to increase the load it will carry.
I can modify a watercraft to increase its stability in water.
I can evaluate which materials are appropriate to the construction of watercraft (waterproof material, waterproof joints,between parts, stiffness of material, buoyancy of material).
I can develop or adapt methods of construction (following a design plan).
I can adapt the design of a watercraft so it can be propelled through water.
I can explain why a given material, design or component is appropriate to the design task.
I can alter/add to a floating object so that it will sink, or alter/add to a non-floating object so that it will float.
I can assemble materials so they will float, carry a load and be stable in water.
I can modify a watercraft to increase the load it will carry.
I can modify a watercraft to increase its stability in water.
I can evaluate which materials are appropriate to the construction of watercraft (waterproof material, waterproof joints,between parts, stiffness of material, buoyancy of material).
I can develop or adapt methods of construction (following a design plan).
I can adapt the design of a watercraft so it can be propelled through water.
I can explain why a given material, design or component is appropriate to the design task.