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WorksheetsThe Dirt on Decomposers
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
For lots of different living things, waste is actually a good source of ___
a)
shelter
b)
energy
c)
water
d)
life
2.
Organisms, like bacteria, insects and worms, that break down waste are called ___
a)
carnivores
b)
herbivores
c)
decomposers
d)
omnivores
3.
Energy flows through a system of living things in a "what eats what" model called ___
a)
the carbon cycle
b)
a food chain
c)
the water cycle
d)
an energy line
4.
The food chain example, from the video, had energy flowing from the mouse to the ___
a)
tree
b)
raccoon
c)
apple
d)
owl
5.
Where do decomposers fit in a food chain?
a)
at the beginning
b)
at the end
c)
in the middle
d)
any time there's waste
6.
Decomposers break waste down into ___
a)
bacteria and some fungi
b)
nutrients and other chemicals
c)
plants and trees
d)
insects and worms
7.
Chemicals go into the ground and are taken up by ___
a)
the sun
b)
plants
c)
decomposers
d)
animals
8.
In an ecosystem, decomposers break down ___
a)
nutrients
b)
waste
c)
insects
d)
worms
9.
Which organisms keep waste from piling up in an ecosystem?
a)
decomposers
b)
plants
c)
mice
d)
owls
10.
Losing the decomposers in a food chain would completely mess up ___
a)
the Lion King movie
b)
a clean desk
c)
the nice balance
d)
the garbage
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