Martina,
I like how you are connecting an area that the children are confident and familiar with (the clothing for different weathers/seasons) to how animals stay warm. This lets the children incorporate their own understanding to the topics of heat and of living things.
This can be a light touch, since the Primary Science Curriculum has little to say on how animals are adapted to different environments, for Infants it has:
- become aware of animals and plants of other environments
and
- become aware that animals and plants undergo seasonal change in appearance or behaviour