Fourth Grade-כיתה ד
Students in Fourth Grade built cars using K’nex. Using a falling weight system the children tested the principals of force and motion. The students recorded and compared their observations. They concluded that adding a heavy weight to the falling weight system pulls the car farther and faster than a lighter weight. They also observed that a car with a heavy load moves slower than a car with a light load. Next, the children will test the effects of friction on the force and motion of their cars.