Year 3 have been continuing their work on forces but finding out which surface has the most friction.  

"If it has the most friction then the car will not go far" Riley

"The table is super slippery and very very smooth so the car will go further.  There is less friction" Grace

"Grass is very bumpy and the ground is rough so this will have lots of friction" Connor M

The children started by writing their own question to investigate and writing down their predictions. Using the word 'because' they had to try to justify their ideas by providing reasoning.  We talked about variables we would have to take into account so that the test was fair.  Working in groups, the class tested different surfaces and measured the distance a toy car travelled.  They recorded their findings and used these to draw conclusions.

"The concrete was not as smooth as the table so it didn't go as far" Conor M

"The grass was the worst surface because it was bumpy.  The car only went 0cm!!!" Arthur