CBSE Class 5 Science: Air and Water MCQs

Air trapped inside the inverted cup occupies space and keeps the tissue dry.

The extra air inside the ball has mass.

Our bodies use oxygen from the air.

Nitrogen accounts for about four-fifths of air by volume.

Moving air turns the blades, which can drive a generator.

Some liquid water changes into water vapour by evaporation.

Water vapour in the surrounding air cools and condenses.

Sedimentation is the settling of suspended particles.

Decantation separates the upper liquid from settled material by pouring.

A cloth may trap larger particles, while microbes and dissolved substances can pass through.