Observe your surroundings carefully and write any three situations of your daily life where you can observe lines and angles.
Draw the pictures in your note book and collect some pictures.

Can you give any two axioms from your daily life.

Give two daily life situation where you observe the diffusion (AS_1)

(i) What do you mean by resonance ? (ii) Mention any two uses of its from your daily life.

Have you ever observed any water pollution in your area? What measures would you suggest to control it?

Can you say that salt is a liquid on the basis of change in its shape? Justify your answer. Take a sponge. Observe its shape.

You are observing top of your school building at an angle of elevation a from a point which is at d meter distance from foot of the building Which trigonometric ratio would you like to consider to find the height of the building?

Mendel studied inheritance of seven pairs of traits in pea which can have 21 possible combinations. If you are told that in one of these combinations, independent assortment is not observed in later studies, your reaction will be

Do you observe any soil pollution in your neighbourhood? What efforts will you make for controlling the soil pollution?