When water is transferred from a glass to a bowl as shown in the given figure, its ___________ changes.
colour
mass
weight
shape
Anjali took a small quantity of soil in a container. She covered it with a plate and heated slowly. After ten to fifteen minutes she removed the plate. She observed some droplets of water on the cover. This shows that soils has:
gravel
sand
humus
moisture
Ice is __________ form of water.
solid
liquid
gaseous
none of these
When we pour ice cubes into jug of water ice floats on water. Why?
Ice is heavier than water
Ice is solid while water is liquid
Ice has white colour
Ice is lighter than water
The particles of smoke and dust rise up in the atmosphere and cause __________ .
soil Pollution
water Pollution
noise Pollution
air Pollution
If you pour some water into a funnel containing clayey soil:
water trickles down quickly and easily.
water sinks down easily.
water does not trickle down easily.
water will be repelled and evaporated.
Select the INCORRECT statement?
Water exists in three forms
All living things need water
Sea water is sweet
Impure water causes diseases
Which of the following is not a property of air?
Air occupies space
Air exerts pressure
Air has no mass
Air cannot be seen
Burning of fire needs:
oxygen
carbon dioxide
nitrogen
water vapour
Air pollution is caused by:
insecticides
sewage
loud speakers
smoke
