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Worksheetsecosystem 4th grade
Total questions: 40
Worksheet time: 23mins
What breaks down the remains of dead organisms and adds nutrients to the soil?
Producers
Consumers
Decomposers
The Sun
Who can make their own food through a process known as photosynthesis after receiving energy from the sun?
Producers
Consumers
Decomposers
The sun
What organisms eat plants and animals to gain energy?
Producers
Consumers
Decomposers
The sun
Which of these is not a decomposer?
Mushroom
Fungi
Bacteria
Lion
Which of these is not a consumer?
Tiger
Squirrel
Fish
Apple Tree
Which of these is not a producer?
Tree
Flower
Grass
Bird
Which of these organisms is responsible for changing the sun's energy into food?
Tree
Human
Dog
Hippo
Which of these shows how energy flows among the animals?
A neighbor has built a house beside your house. Some of your plants are dying. Predict which of the following could be a reason?
The plants are extinct.
The house allows more animals to eat the plants.
The house has decreased the amount of sunlight the plants receive.
The house has decreased the amount of water the plants receive.
What is this?
Food Web
Food Chain
What is this?
Food Web
Food Chain
Which of these is a source of energy for a shark?
Algae
Fish
Squirrel
Bird
Infer which population would increase if the number of mice increased?
Owls
Grass
Rabbits
Birds
If the grass in this area died, what would happen to animals in the food web?
All animals would be affected
The grasshoppers and rabbits would die
Some animals may have to find a new place to live due to the lack of food
all the above
What do carnivores eat?
other consumers
plants
both
What do herbivores eat?
other consumers
plants
both
What do omnivores eat?
other consumers
plants
both
Why do you not see some birds during the winter months?
They are hiding
They are hibernating
They are migrating
They die
Plants need _____ to make food.
light
protection
to stay warm
All living things are called _________.
prey
organisms
partnerships
Some animals _______ from one ecosystem to another to find food and water.
migrate
adapt
hibernate
During the coldest months of the year, some animals _________.
compete
camouflage
hibernate
Which of these is a source of energy for a shark?
Algae
Fish
Squirrel
Bird
Anything that makes the air, land, or water dirty is called _________.
migration
pollution
adaptation
