Wednesday 20 November 2013

MATERIALS

We investigated a selection of materials and realised they have lots of different uses, properties and characteristics. We learnt new words such as absorbent, buoyant, transparent and flexible. 

 
  
 
 
 
 
We found suitable materials for the lenses of a pair of sunglasses. They need to be transparent, waterproof and coloured. 


No good, I can't see through this!
 
 

I can see through but it's too blurry.

 

Ah, this looks better, I can see you!
 

How do I look?

 
We investigated the best material for a coat to keep James Bear warm, we needed to use thermometers in our investigation.  

 
 
 
   


We discovered that the wadding was the best material, it only fell to 32 degrees centigrade but the others fell to between 28 and 31 degrees. They all all started off at 36 degrees and we measured them with a thermometer after 2, 5 and 10 minutes.

 

No comments:

Post a Comment