Health: The Ultimate Treasure — Science STD 8 — Question

What is formed when two gametes involved?

A girl is pushing a box towards East direction. In which direction should her friend push the box, so that it moves faster in the same direction ?

Why does the moon change its shape daily?

Explain the reason of not putting the sharp or pointed things into the ear.

Name any two glands which function as endocrine glands as well as exocrine glands.

Which is the most conspicuous change (clear visible change) in boys and girls during puberty?

Fill in the blanks with suitable words. Shrillness of a sound is determined by the _________ of vibration.

On what factor does the pitch of a sound depend?

You spill a bucket of soapy water on a marble floor accidently. Would it make easier or more difficult for you to walk on the floor? Why?

How do we see objects using light?