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Tooth Shape and Function

Students will answer questions about the different kinds of teeth and how to keep teeth healthy.

'Tooth Shape and Function' worksheet

Key stage:  KS 2

Curriculum topic:  Animals, including Humans

Curriculum subtopic:  Teeth

Difficulty level:  

down

Worksheet Overview

QUESTION 1 of 10

Humans have two sets of teeth in their lifetime. We grow milk teeth as babies, which fall out and are followed by our adult teeth. 

Teeth come in different shapes and sizes because they do different jobs: 

- Our front four teeth - the incisors are used for biting and cutting. 

- The sharp, pointed canines are used for tearing. 

- Flat topped molars grind and crush our food. 

 

Our bodies start the process of food digestion by chewing food up into small pieces before swallowing it down into the stomach. We must take great care of our teeth all through our lives because micro-organisms in our mouths can damage teeth and gums by causing decay and painful gums. 

What are the teeth called which appear when humans are between 3 and 6 months old?

Permanent, adult teeth should last how long? There's only one correct answer!

10 years

until we turn 21

all of our adult life

50 years

12 months

What job do the flat-edged incisors do?

grinding

ripping

biting

The large, flat-topped teeth towards the back of our mouths have which scientific name?

Pointed and sharp, which teeth are shaped for tearing and piercing?

Micro-organisms in our mouths turn sweet foods into acid which causes decay and gum disease. This build-up of bacteria can be seen as a sticky white substance coating dirty teeth.

What do dentists call this goo?

saliva

decay

plaque

sugar

tooth paste

Is the following statement true or false?

 

Toothpaste containing fluoride is most effective because it helps strengthen teeth. 

true

false

How many teeth do adults usually have?

18

32

56

100

How are teeth fixed into the jawbone?

using superglue

by their roots

using enamel

screwed in

by the dentist

  • Question 1

What are the teeth called which appear when humans are between 3 and 6 months old?

CORRECT ANSWER
milk teeth
EDDIE SAYS
Our milk teeth fall out from about the age of six and are replaced by permanent, adult teeth.
  • Question 2

Permanent, adult teeth should last how long? There's only one correct answer!

CORRECT ANSWER
all of our adult life
EDDIE SAYS
With proper care, a healthy lifestyle and a balanced diet, permanent teeth can last a lifetime!
  • Question 3

What job do the flat-edged incisors do?

CORRECT ANSWER
biting
EDDIE SAYS
Think about eating an apple. We use our incisors to bite off a chunk.
  • Question 4

The large, flat-topped teeth towards the back of our mouths have which scientific name?

CORRECT ANSWER
molars
premolars
EDDIE SAYS
That chunk of apple has to be ground and crushed into smaller pieces before swallowing. That's the job of the molars.
  • Question 5

Pointed and sharp, which teeth are shaped for tearing and piercing?

CORRECT ANSWER
canine
canines
EDDIE SAYS
Canines are not so important for humans as they are for some other animals, especially meat-eating carnivores, eg cats.
  • Question 6

Micro-organisms in our mouths turn sweet foods into acid which causes decay and gum disease. This build-up of bacteria can be seen as a sticky white substance coating dirty teeth.

What do dentists call this goo?

CORRECT ANSWER
plaque
EDDIE SAYS
As well as tooth decay, gum disease is also caused by plaque. The acid it produces attacks the gums and can loosen healthy teeth so much that they fall out!
  • Question 7

Is the following statement true or false?

 

Toothpaste containing fluoride is most effective because it helps strengthen teeth. 

CORRECT ANSWER
true
EDDIE SAYS
Fluoride is a chemical added to toothpaste to make it more effective at fighting decay.
  • Question 8

How many teeth do adults usually have?

CORRECT ANSWER
32
  • Question 9

How are teeth fixed into the jawbone?

CORRECT ANSWER
by their roots
EDDIE SAYS
The part of a tooth we can see is not the whole tooth. Teeth have roots which fix them into the bone of the upper and lower jaws.
---- OR ----

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