Unit 1 Natural Science

Here you have some videos with the topics covered in unit one. Enjoy

Senses

1. There are five senses – sight, smell, touch, taste and hearing.
2. Our senses help us to understand what’s happening around us.
3. Our senses send messages through receptor cells to our brain, using our nervous system to deliver that message.
4. There are four kinds of taste receptors on the tongue – bitter, sweet, salt and sour.
5. Some parts of the skin are more sensitive than others – this is because they have more receptor cells.
6. We taste food using both our sense of taste and smell.

HOW YOUR EYES WORK




HOW YOUR EAR WORK