2- 23 in science class

We started to talk about physics and how to prove that an object is moving and in which direction. Also how to see the speed of the object by the time and distance traveled. One experiment we did was we looked at a basketball through a rolled up piece of paper and came to the conclusion that the ball was moving to the right; we figured that out because the paper needed to be moved to keep the ball in sight. There were also a series of 7 pictures and we needed to find what was moving. in each picture, some of the objects were in different spots. with that, the conclusion was that the trees and buildings in the background were stationary and the cars and train and people were moving.