The Living Organisms and Their Surroundings — Science STD 6 — Question

What happens when two or more drops of iodine solution fall on starch substance?

Which process is used to separate bacteria from water?

Fill up the blank:
Changes in our surrounding that makes us respond to them are called _______.

You have learnt that a tail is present in a tadpole but it disappears as it grows into a frog. What is the advantage of having a tail in the tadpole stage?

When we pour a few drops of mustard oil to water, the oil floats on the surface of water. Why?

Which of the following objects can be classified as soft?
Chalk, chair, brick, wax, wool, steel bowl and sponge

Have you ever observed sieves being used at construction sites to separate pebbles and stones from the sand?

To which part of the magnet do none or only a few iron filings (or pins) stick?

Why is water important for our body?