WorksheetsPre- Ecosystems
Total questions: 19
Worksheet time: 12mins
Name
Class
Date
1.
Chloroplasts are parts of cells found in some living things. They use sunlight to produce/make sugar, which stores energy for the organism.
Which group of organisms do you think have chloroplasts?
Which group of organisms do you think have chloroplasts?
a)
decomposers
b)
producers
c)
consumers
d)
scavengers
2.
A compost pile has dead and decaying plant and animal materials. As organisms decay they put nutrients back into the soil.
The organisms that break down this plant and animal material are called....
The organisms that break down this plant and animal material are called....
a)
producers
b)
decomposers
c)
consumers
d)
scavengers
3.
All organisms need plants to survive because
a)
plants produce carbon dioxide.
b)
plants take oxygen out of the air.
c)
plants are producers and provide food (energy ) for other organisms.
d)
Plants consume animals.
4.
Which organism in this food chain provides energy to all of the other organisms in this ecosystem?
a)
owl
b)
caterpiller
c)
flower
d)
snake
5.
Identify one consumer in this food chain.
a)
sunlight
b)
grass
c)
lion
d)
moon
6.
What would happen to the food supply for the frog if most of the caterpillars died?
a)
it would increase
b)
it would decrease
c)
it would stay the same
7.
A group of organisms that interact with their environment is called
a)
a niche
b)
a party
c)
an ecosystem
d)
a habitat
8.
Photosynthesis is
a)
heat energy from the sun turned into plants
b)
heat energy from the sun changed into light
c)
light energy from the sun turned into heat
d)
light energy from the sum changed into glucose (sugar)
9.
In order for organisms in an ecosystem to grow and reproduce, they need....
a)
light and sound
b)
light and water
c)
food and sound
d)
food and waster
10.
Look at the diagram of the carbon cycle. How is carbon dioxide removed from the atmosphere?
a)
animals eating plants
b)
decomposing matter
c)
green plants absorbing carbon dioxide
d)
animals breathing
11.
How can people reduce the amount of carbon dioxide going into the atmosphere?
a)
burn less coal, oil, and natural gas
b)
cut down more trees
c)
increasing factories
12.
The chameleon in this food chain would be classified as....
a)
producer
b)
decomposer
c)
consumer
d)
scavenger
13.
Which of the following organisms would most likely be at the beginning of this food chain?
a)
snake
b)
mongoose
c)
leaf
d)
caterpillar
14.
The arrows in this food chain represent....
a)
how the organsims in an ecosystem grow
b)
the direction the energy flows in an ecosystem
c)
the decreasing number of organisms in an ecosystem
d)
how organsims move in an ecosystem
15.
In the water cycle, which process has the main job of adding water into the ecosystem?
a)
evaporation
b)
melting
c)
photosynthesis
d)
precipitation
16.
How does nature recycle water?
a)
during photosynthesis
b)
through the water cycle
c)
in food webs
d)
during the carbon cycle
17.
Snow, sleet, hail, and rain are all examples of ________________.
a)
evaporation
b)
condensation
c)
accumulation
d)
precipitation
18.
What is the water cycle?
a)
the 3 forms of water
b)
the movement of water on, above, or below the surface of the Earth
c)
when water melts
d)
when clouds form
19.
Which stages does liquid water from the ocean turn into water vapor?
a)
condesantion
b)
evaporation
c)
precipitation
d)
run off
100 %
