This afternoon we have tested the effects of friction. We wanted to see which surface had the least amount of friction on for walking. We tested 5 different surfaces: wooden floor, grass, concrete, tarmac, laminate and carpet.
Which surface do you think will have the least amount of friction?
This afternoon in science we tested whether or not our boats would float. In teams we worked together to create our boats , using plastic bottles, and other materials. Most of our boats floated but one which had holes in the bottle started to sink. So as a class we discussed how we could improve the boat and came up with the solution of covering up the holes, which would help the boat float as no water could get inside.
This afternoon, we have been busy designing a boat. We have learnt about the different types of forces that are affected within water resistance. Water resistance slows objects down when they are trying to move through the water.
We have designed this boat because it is light so it will float and it is streamlined so it will glide in the water.
This afternoon, we have tested how air resistance acts upon a force. We have learnt that as an aeroplane files through the sky, it has to push through the air around it. Friction between the air and the plane slows the plane down, which is known as air resistance.
We tested our paper aeroplane designs and measured which aeroplane travelled the furthest.
This afternoon, we have been creating journey sticks. This week in literacy, we have focused on autobiographies. Today, we story mapped our plan, focusing on the key events in our lives. This afternoon, we spent creating a journey stick of our life so far.
This afternoon, we were investigating the difference between irreversible and reversible changes. Reversible means being able to form its shape again and irreversible means its the change cannot be undone.
We carried out a experiment using a variety of different food types: toffee, potato, chocolate, eggs and butter. We had to decide whether these types of food where reversible or irreversible.
Can you think of any more food types that may be reversible?
Starting this weeks science week, we were investigating which material would be the best insulator. We were testing out different materials for a new lunchbox lining. We found that plastic was the best material because it kept the ice-cube the coldest for the longest. We tested fabric and foil too.