Science 8 | Biology | Unit 2. Food and digestion Teeth

Choose the correct answer.

What is the function of canines?

Cutting

All are correct

Tearing

Grinding

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Tearing

Grinding

Cutting

All are correct

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The bulk of the tooth is made of

Bone

Gum

Enamel

Dentine

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Dentine

Enamel

Gum

Bone

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Which types of teeth are used to crush and grind food?

molars & canines

molars & premolars

premolars & canines

molars & incisors

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molars & premolars

premolars & canines

molars & incisors

molars & canines

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What are the functions of Incisors teeth?

for cutting and chopping food

for crushing food

for grinding food

for swallow the food

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for cutting and chopping food

for swallow the food

for crushing food

for grinding food

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How many molar teeth do we have?

ten

six

eight

twelve

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twelve

eight

six

ten

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Match the options with the correct characteristics.

enamel

dentine

pulp cavity

fibres

containing blood vessels and nerves.

a layer containing living cells, not as hard as enamel.

help to hold the tooth in the jawbone.

a very hard covering, containing calcium.

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enamel

dentine

pulp cavity

fibres

containing blood vessels and nerves.

a layer containing living cells, not as hard as enamel.

help to hold the tooth in the jawbone.

a very hard covering, containing calcium.

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Which food has a lot of calcium that can help you grow strong teeth?

milk

chick

candy

banana

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milk

candy

chick

banana

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What should you do right after you have a sugary snack?

go to the dentist

bake an apple pie

brush your teeth

take a long nap

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brush your teeth

take a long nap

go to the dentist

bake an apple pie

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What are canine teeth?

It use to cutting and chopping the food.

It are sharp, pointy teeth.

It are help your tongue to swallow the food.

It are your 4 front teeth.

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It are sharp, pointy teeth.

It use to cutting and chopping the food.

It are help your tongue to swallow the food.

It are your 4 front teeth.

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What is a tiny hole in your tooth called?

germ

plaque

cavity

root

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cavity

plaque

root

germ

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The protective layer of a tooth is called

Enamel

Gum

Dentine

Bone

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Enamel

Gum

Dentine

Bone

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Match the options with the correct definition.

Incisors

Canines

Premolars

Molars

have broad surfaces with ridges on them. They are used for crushing and grinding food when you chew.

are more pointed than incisors. In humans, they are used in the same way as incisors.

are like premolars, but sometimes a bit bigger. They are also used for crushing and grinding food.

are chisel shaped, with a sharp edge. They are used for biting off small pieces of food so that you can take the food into your mouth.

Giải thích

The correct answer

Incisors

Canines

Premolars

Molars

have broad surfaces with ridges on them. They are used for crushing and grinding food when you chew.

are more pointed than incisors. In humans, they are used in the same way as incisors.

are like premolars, but sometimes a bit bigger. They are also used for crushing and grinding food.

are chisel shaped, with a sharp edge. They are used for biting off small pieces of food so that you can take the food into your mouth.

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