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Worksheetsch. 4 science test
Total questions: 22
Worksheet time: 12mins
1. Which is a decomposer?
2. All the fish in a pond died. What will most likely happen to this ecosystem?
The fish-eating animals will move to another pond.
Flooding will cause the pond to increase in size.
The animals in the ecosystem will all become herbivores.
The pond will dry out to form a desert environment.
3. Most food chains begin with a –
predator
large animal
carnivore
green plant
4. What makes its own food using the sunlight, air, and water?
predators
people
producers
populations
5. The ecosystem shown below is the home to what type of animals?
river animals
desert animals
grassland animals
forest animals
Eastern cottontail rabbits are commonly found in forest communities eating grass, leafy greens, and shrubs. These rabbits can best be described as –
carnivores living in an aquatic ecosystem
producers living in a water-related ecosystem
omnivores in a food chain
herbivores in a terrestrial ecosystem
7. Arrows in a food chain, always point to the organism-
doing the eating
on top of the food chain
being eaten
known as the producer
8. Which THREE images are fresh-water ecosystems?
9. An animal that hunts other animals is called a –
producer
decomposer
predator
prey
10. What would most likely explain why a black bear population would move away from a forest?
The thick trees became too difficult for the bears to freely roam.
There was so much rain that the bears could not get dry.
All the trees in an area were cut down and used for lumber.
Temperatures in the winter months were colder than usual.
11. Chipmunks run quickly to hide when a hawk circles in the air. To the hawk, the chipmunk is –
a producer
its prey
a consumer
its ecosystem
12. What term would best describe this consumer?
omnivore
carnivore
producer
herbivore
13. What are TWO living components in an ecosystem?
sunlight
plankton
soil
air
decomposer
What is the source of energy in this food chain?
zebra
sun
consumer
cheetah
15. Ecosystems are complex and diverse. They –
have more nonliving components than anything else
protect habitats through conservation
contain both living and nonliving components
measure their success by the number of living creatures
16. What are FOUR examples of aquatic ecosystems?
marsh
swamp
grassland
ocean
river
17. What are FOUR examples of terrestrial ecosystems?
desert
grassland
marsh
forest
rainforest
18. What THREE animals are part of a rainforest ecosystem?
toucan
deer
lizard
octopus
monkey
19. What terrestrial ecosystem is being described in the cause-and-effect chart?
rainforest
desert
forest
marsh
This is an example of a -
producer
food chain
carnivore
habitat
the monarch butterfly population was the greatest in -
2014
2016
2018
2020
22. The monarch butterfly population was the least in -
2014
2016
2018
2020
