Forces

In Science we have been learning about forces. During Science Week, we looked at push and pull forces.

This week, we learned that Gravity is a force that pulls things to the ground. To explore Gravity, some of us made gravity art by dropping paint onto paper. We tried to defy gravity by trying to keep balloons in the air and we played with parachutes. We tried the parachutes in the class, outside in the playground and most fun of all, we dropped them off the balcony, up beside the office.

After our gravity investigations, we learned about what makes things move fast or slow. We had to design an experiment to make a toy car move fast and another to make it go slow. We were not allowed to put a push or pull force on the car.

In groups, we worked out that using a cardboard ramp would make the car move. A steep ramp made it go fast and a shallow ramp made it move slowly. We were then asked what we could change about the car only, to make it go faster. We were not allowed to change the ramp.

We worked out that if the car came from higher up, gravity would give it a help. Some of us thought about friction and said that if the wheels were wet, the car would go faster because there would be less friction. At the end, just before we finished, some us realised that if we made the car heavier, that would also make it go faster.

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