Summary Unit 19: Gravitational and frictional forces

Forces can be of different types such as Gravitational force and frictional force.

Gravitational force is a force which pulls all objects downwards and causes objects to have weight.

While frictional force, has many effects and can be useful or even cause problems. Problems caused by frictional force are for example it can slow down objects, it could overheat engines and wear out tyres. But the problems could be overcomed using lubricants and rollers and wheels.

Science E-Portfolio tag: Electric Circuit-Building activity

      I liked this project because it was fun.We get to learn more about making electric circuits because I have did this at grade 4 but this was more complicated than the one we made at grade 4 because we were asked to make 2 electric circuits which are parallel and series.

     There were 7 groups and each group has 4 members. My group managed to make only one electric circuit. Even thought we managed to make 1 electric circuit we still get to do the other one soon. It was a fun activity and I'm looking forward for more.