Changes Around Us — Science STD 6 — Question

We should breathe through the nose and not by the mouth, because ____

How are the items given in the box grouped as?

Ruler.

Sharpener.

Eraser.

Pencil.

Water colours.

Name the phenomenon due to which our right ear appears as left ear when we see our face in the mirror.

You might have observed the preparation of ghee from butter and cream at home. Which method(s) can be used to separate ghee from the residue?

1. Evaporation.
2. Decantation.
3. Filtration.
4. Churning.

Which of the following combination is the correct answer?

Which gas dissolve in water that helps in breathing aquatic organism?

Direction: Read the passages given below and answer the questions that follow. Passage. Lemonade is prepared by mixing lemon juice an sugar in water. You extracted lemon juice from lemon and used some method to remove solid particles of pulp from it before mixing it with water. Now you add sugar and ice to the above solution before serving it. Which process have you used to remove pulp from lemon juice?

Which of these includes culturing of earthworms and redworms?

What causes the formation of salt from sea water?

The symbol for a closed switch is shown in:

Which is substance was traditionally used in thermometers but is now avoided due to toxicity?