1st Class Science Human Body and their Needs Teeth

Teeth

Category : 1st Class

*   Teeth

 

Remember the following about human teeth:

It lies inside the mouth-

It is very hard.

It is of white colour.

It is used for chewing and tearing of food items.

A human baby has 20 milk teeth that start developing from the age of 6 months and last till the age of 5 to 6 years.

An adult has 32 teeth and they are called permanent teeth.

 

Let us see the picture of human teeth:

 

 

common.jpg

 

Where do the human teeth lie?

(a) Inside chest                                                

(b) Inside mouth

(c) Inside legs                                                   

(d) Inside neck

 

Answer: (b)

Explanation

Option (B) is correct, because human teeth lie inside the mouth.

Therefore, rest of the options is incorrect.

 

 

  How many milk teeth grow in the babies?

(a) 11                                                                    

(b) 5

(c) 15                                                                    

(d) 20

 

Answer: (d)

Explanation

Option (D) is correct, because babies has 20 teeth. Therefore, rest of the options is incorrect.

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