Ecosystems - Worksheet 3
Grade 4•Science•Ecosystems
Aligned to: 4-LS2-1
Answer the following questions about ecosystems.
1.
Which evidence best shows that living and nonliving things in an ecosystem depend on each other?
A.Rocks are found near rivers
B.Plants use sunlight, water, and soil nutrients to grow, and animals eat the plants
C.Clouds move across the sky
D.Sand is on the beach
2.
A pond ecosystem has fish, frogs, insects, and plants. What would most likely happen if a drought dried up half the water?
A.Nothing would change
B.Only the fish would be affected
C.Many organisms would be harmed because they all depend on water
D.The plants would grow faster
3.
Which is a nonliving part of an ecosystem?
A.Tree
B.Bird
C.Sunlight
D.Grass
4.
What is an ecosystem?
A.Only the animals in an area
B.Only the plants in an area
C.All living and nonliving things in an area
D.Just the weather in an area
5.
What might happen if all the plants in an ecosystem died?
A.Animals would have more food
B.Herbivores would have no food
C.Nothing would change
D.More plants would grow
6.
Water is a living part of an ecosystem.
7.
Changes in one part of an ecosystem can affect other parts.
8.
An ecosystem only includes living things.
9.
FishSunlightTurtleRocksFrogSand