Transportation in Animals and Plants — Science STD 7 — Question

Paheli says her mother puts Jadyfinger and other vegetables in water if they are some what dry. She wants to know how water enters into them.

As our population increases, we need more water for drinking, washing and other purposes. Does this affect the water table? Explain.

State the role of scavengers in cleaning of our environment.

Explain the reason for serving of tea in China clay cup and plates.

Give the name of few animals that can live in the polar region.

How can you distinguish metals from nonmetals?

Melting of wax is a change where a solid changes to liquid state. Give one more such change which you observe in your surroundings.

What is brine?

Fill in the blanks:Seed dispersal takes place by means of _____________, _____________ and _____________.

What does the changing view of the night sky throughout the year tell us?