Simple Machines — Science STD 6 — Question

Air becomes ……………. at higher altitudes.

Plants appear green in colour due to the presence of ………… . (sunlight, chlorophyll )

Pluto takes ………….. years to complete its revolution around the sun.

………….. planets of the size of the earth can get accommodated on Jupiter.

If a ball is released from the terrace of a building, it comes down in ………… motion. On the other hand, it reaches the ground in ………… motion if it is thrown with a force away from the terrace in a direction parallel to the terrace.(linear, non-linear, uniform linear, non-uniform linear, uniform circular, random, circular, non-uniform circular)

Noise pollution is a …………… issue.

Liquids have a …………… volume.

Plants respire by means of ………….. on their stems and leaves. (plants, microscopic pores.)

The human skeletal, system is divided into ………….. parts.

Iron is melted to make …………… .