Why Do We Need Teeth?
Science: Year 3 & 4 National Curriculum, topic 7.1.1
Why Do Humans Need Teeth?
Humans have two sets of teeth throughout their lives.
Two sets of teeth
- Humans have:
- 'Milk' or 'baby' teeth from the age of about 6 months until they are 12 years old.
- Adult teeth first appear around the age of six and a full set is usually complete by the age of 21.
Teeth cut our food
- Humans need teeth to cut and break down food into smaller pieces.
Food is absorbed
- Cutting food allows food to be digested and absorbed in the body.
- Nutrients from food are absorbed via the blood.
- Nutrients are what humans get from food to make their bodies work properly.
Test yourself on Why Do We Need Teeth?
What age do humans have 'milk' teeth?