WorksheetsPractice Test in Science 4
Total questions: 10
Worksheet time: 3mins
Red tide is affecting the northern coast of the country.
Noise Pollution
Land Pollution
Water Pollution
Air Pollution
When a material was cooled, what happens to its temperature?
disappear
remain the same
increased
decreased
Water on rivers and streams become contaminated with plastic wastes
Helpful
Harmful
Which of the following materials will SINK in the water?
big stones
empty bottle
styro cup
feather
Piece of bread
Sink & non-porous
Sink& porous
Float& porous
Float&non-porous
What will happen to butter when heated?
Melt
Solidify
Freeze
Flowering of trees for early onset of fruiting.
Helpful
Harmful
Which of the following changes in the materials is NOT harmful to the environment?
Throwing garbage in the canal.
Using paper bags when shopping.
Throwing hospital wastes into the river.
Using detergents in washing clothes in the
river.
Lung infections and other respiratory diseases become rampant due to excessive smoke from factories and motorized vehicles.
Harmful
Helpful
Chicken manures release foul odor all over the town.
Water Pollution
Land Pollution
Noise Pollution
Air Pollution
