Inside a Tooth
Age 10 · Science
A tooth has a hard outer layer, a softer layer under it, and a living center. Roots hold the tooth in the upper or lower jaw.
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Age 10: open this week
Browse Age 10In the picture
- Enamel: the hard white outer covering of the crown.
- Dentine: the yellow layer beneath the enamel.
- Pulp: the living center with nerves and blood vessels.
- Root: the part that anchors the tooth in the jaw.
Examples
- Biting into an apple presses on the hard outer layer of a tooth.
- A cold drink can cause a sharp feeling if the living center is exposed.
Key takeaways
- Teeth are anchored by roots in the upper and lower jaw.
- A tooth has enamel, dentine, and a living pulp with nerves and blood vessels.
Quiz: Inside a Tooth (Age 10)
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Which part of a tooth is the hard white outer covering?
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Which part of a tooth is alive and has nerves and blood vessels?
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What anchors a tooth in the upper or lower jaw?
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