Science worksheets for class 4
Access printable science worksheets for class 4
What are the living and nonliving things in an environment or area?
predator
producer
ecosystem
abiotic factor
An organism that can make its own food
decomposer
producer
consumer
Breaks down and feeds on the remains of other organisms
decomposer
consumer
producer
Small consumers that are hunted and eaten by larger consumers
producer
prey
predator
Interacting food chains found in an ecosystem
food web
food chain
predator
An animal that hunts and eats other animals for energy
prey
predator
decomposer
These organisms cannot make their own food; they must eat something for energy
decomposer
consumer
producer
NON-living things found in an ecosystem
biotic
abiotc
habitat
LIVING things in an ecosystem
biotic
abiotic
ecosystem
Choose the producer.
rock
tree
cow
bird
Choose the decomposer.
grass
elephant
bacteria
bird
Choose the consumer.
mushroom
horse
tree
grass
Choose the abiotic factor.
sunflower
dog
cat
table
Where does the food chain START?
with consumers that eat grass
with the sun giving energy to producers
with the sun giving energy to consumers
with consumers eating other consumers
A decomposer is also a producer.
True
False
Which of the following are factors that could cause extinction?
Destruction of animals' habitat
Climate change
Pollution
Increased human population (more people)
ALL of the above could cause extinction
What is scarcity and how could it affect an ecosystem?
Too many animals or plants in an area can cause the ecosystem to fail.
Too many animals or plants in an area can cause the animals to be too fat.
Too few animals or plants in an area can cause other animals to go hungry or die.
Too few animals or plants in an area can cause pollution.
Which of these living things is a producer?
horse
cow
fly
grass
Mice and grasshoppers are examples of prey.
True
False
Explain the flow of energy in this food chain (who passes energy to who).
The hawk gives energy to the snake. The snake gives energy to the mouse. The mouse gives energy to the grasshopper who gives energy to the grass.
The mouse gives energy to the hawk. The snake gives energy to the grasshopper. The grass gives energy to the snake.
The grass gives energy to the grasshopper. The grasshopper gives energy to the mouse. The mouse gives energy to the snake who gives energy to the hawk.
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