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Food pipe

Teeth

Q3. Ravnish was absent in the science class and was unable to understand the importance
of saliva in the mouth. As a friend explain him and clear his doubt.

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Q4. Nitin and Puja are confused between the two types of intestines. In the box below write
about the two types of intestines and their functions to clear the confusion.

Q5. Nitya is eating an orange. The orange will pass through her digestive system, which has
the many parts. Mention the parts of the digestive system in the correct sequence for the
orange to pass through it.

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