1. Streamlined objects
Streamlined is a process and reduces more air resistance and it is easier for the object to move. Streamlined objects can be in water, air and land. Also it is natural or man made.
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Size?
Shape?
Mass?

2. Which shape was the most streamlined?
How could you tell this?
In this experiment, which was the independent, dependent and control variable?
Why is it important for a moving object to be streamlined?
In this experiment, how would you work out the speed for each shape?