NEW
Font size
WorksheetsKeeping the environment
Total questions: 26
Worksheet time: 14mins
Why is carbon dioxide important for plants?
Carbon dioxide gives plants their green color.
Plants can release carbon dioxide into the air.
Plants use carbon dioxide to make their own food.
Carbon dioxide lets plants absorb their roots.
Every ecosystem supplies the basic needs for the organisms that live there. What are the basic needs of all organisms?
Air, water, food, habitat
Food, water, habitat, space
Air, water, food, protection
Food, attention, change, water
Which organism in a food web is a producer?
Aphid
Beetle
Rosebush
Spider
Ecosystem change for many different reasons. Which of the following is a natural cause of changes in an ecosystem?
Farming
Housebuilding
Hurricanes
Pollution
Which organisms release oxygen into the air as part of the carbon dioxide - oxygen cycle?
Consumers
Decomposers
Predators
Producers
A place where living things live is known as a _______.
land
soil
habitat
earth
Habitats provide living things with _______.
air, water, food, space, and energy
air, water, food, space, and shelter
air, water, food, space, and sunlight
air, water, food, space, and friends
Each habitat has its environment. We can tell if an environment is healthy by observing its _______.
condition
situation
population
communication
A _______ is a group of living things that live and reproduce in the same place.
habitat
population
team
environment
Our _______ is the surroundings in which we live.
habitat
place
earth
environment
The characteristic of _______ environments are clean, produce fresh air and water, and also fit for living things to live in.
nice
wonderful
healthy
kind
A statement that does not belong to the characteristic of a healthy environment is _______.
full of smoke
clean
have plenty of fresh air
fit for people, animals, and plants to live in
We should not burn wood and rubbish, because burning produces a lot of _______.
dust
ashes
smoke
fog
Living things could be _______ if they live in an
unhealthy environment.
happy
healthy
harmed
guilty
Three important factors that living things need to grow and develop well in the environment are _______.
clean, safe and pleasant
clean, save and pleasant
clean, fresh and pleasant
clean, beautiful and pleasant
'The 3R Concept' stands for _______.
Reduce, Re-use, Recycle
Re-use, Recycle, Re-energy
Recycle, Re-energy, Reduce
Re-energy, Reduce, Re-use
Reduce means _______.
Using trash to remake new goods that can be sold again.
Finding a new way to use trash so that we don’t have to throw it out.
Cutting back on the amount of trash we make.
Part of 'The 3R concept'.
Re-use means _______.
Using trash to remake new goods that can be sold again.
Finding a new way to use trash so that we don’t have to throw it out.
Cutting back on the amount of trash we make.
Part of 'The 3R concept'.
Re-use means _______.
Using trash to remake new goods that can be sold again.
Finding a new way to use trash so that we don’t have to throw it out.
Cutting back on the amount of trash we make.
Part of 'The 3R concept'.
Recycle means _______.
Using trash to remake new goods that can be sold again.
Finding a new way to use trash so that we don’t have to throw it out.
Cutting back on the amount of trash we make.
Part of 'The 3R concept'.
The correct statement about saving energy is _______.
to turn off electrical equipment when they are not in use
taking a walk or cycle to a nearby place
to collect rainwater and use it to wash the floor outside your house
pack items that can be recycled and bring them to a recycling center
The correct way for keeping our air clean is _______.
turning off electrical equipment when they are not in use
to take a walk or cycle to a nearby place
to collect rainwater and use it to wash the floor outside your house
pack items that can be recycled and bring them to a recycling center
