wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Ch 4 - Ecosystems

Total questions: 18

Worksheet time: 14mins

Name
Class
Date
1.
What is the main source of energy for the entire planet?
a)
crops
b)
magnetic fields
c)
sunlight
d)
the ocean
2.
The first trophic level of an ecosystem consists of:
a)
plants
b)
herbivores
c)
carnivores
d)
detritivores
3.
What type of animal would occupy level B in a pyramid of numbers?
a)
wolf
b)
frog
c)
rabbit
d)
grass
4.
Which of the following habitats would have an inverted pyramid of numbers?
a)
The gulf of Mexico
b)
The prairie in Nebraska
c)
An oak tree in a backyard
d)
A rainforest in South America
5.
Which of the following returns carbon to the atmosphere?
a)
photosynthesis by plants
b)
precipitation in the atmosphere
c)
burning of fossil fuels
d)
temperature increases
6.
The following diagrams represent a pyramid of numbers for two different ecosystems. What do the models represent?
a)
the total biomass at each trophic level
b)
the total amount of energy in the ecosystem
c)
the amount of energy available at each trophic level
d)
he number of individuals present at each trophic level
7.

The represents a pyramid of numbers for two different ecosystems. What is the primary consumer for the terrestrial ecosystem?

a)
snakes
b)
mice
c)
grasshoppers
d)
grasses
8.
Which statement BEST describes how matter moves within and between ecosystems?
a)

Matter flows in a one-way direction

b)

Matter cycles between trophic levels

c)

Matter is made and destroyed as it is used

d)
Matter cycles through food webs and biogeochemical cycles.
9.
What processes of the water cycle return water vapor directly to the atmosphere?
a)
water retention and runoff
b)
freezing and precipitation
c)
evaporation and transpiration
d)
condensation and evaporation
10.
What is the mostly likely cause of algae blooms?
a)
nitrogen
b)
methane
c)
carbon dioxide
d)
low oxygen levels
11.

What type of organisms are called producers?

a)

herbivores

b)

plants

c)

parasites

d)

carnivores

12.

Label the steps of the carbon cycle in the correct location.

13.

Water Cycle, #1

Drag each term to the correct spot on the diagram to complete the water cycle!

14.

What role do decomposers play in the carbon cycle?

a)

They produce carbon dioxide through respiration

b)

They convert carbon dioxide into oxygen

c)

They store carbon in the soil

d)

They eat plants and release carbon dioxide

15.

How do animals contribute to the carbon cycle?

a)

By absorbing carbon dioxide during photosynthesis

b)

By releasing carbon dioxide through respiration

c)

By filtering carbon out of the water

d)

By planting trees

16.

Between 6am and 6pm the rate of ​ (a)   is greater than the rate of ​ ​ (b)  

Choose from the below words
transpiration
combustion
photosynthesis
cellular respiration
17.
What does not produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
18.

Correctly label each trophic level