Lesson Worksheet: Introduction to Environmental Balance Science
In this worksheet, we will practice describing ecosystems and environmental balance.
Q1:
Anthony and Amelia are talking about ecosystems. Who is right?
- AAnthony
- BAmelia
Q2:
Fill in the blank: An ecosystem is an environment that features living things .
- Aand nonliving things
- Bonly
Q3:
Fill in the blank: Environmental balance is the balance of an ecosystem.
- Asaprophytic organisms in
- Ball the parts of
- Cthe predators in
Q4:
Fill in the blanks: Environmental can happen when natural circumstances cause organisms to appear or disappear in an environment. A group of organisms become extinct when they an environment.
- Abalance, appear in
- Bimbalance, disappear from
- Cimbalance, appear in
- Dbalance, disappear from
Q5:
Fill in the blank: An ecosystem is composed of things.
- Aonly living
- Bonly nonliving
- Cliving and nonliving
Q6:
Which of these lists states all of the things an ecosystem can include?
| List 1 | List 2 | List 3 |
|---|---|---|
| Plants Predators Decomposers Prey | Water Soil Air Rocks | Water Animals Plants Soil |
- AList 3
- BList 2
- CList 1
- DAll of the lists
Q7:
The organisms in an ecosystem constantly interact with nonliving things and with each other. If these interactions are undisturbed, what does this lead to?
- AImbalance
- BBalance
Q8:
A new island is discovered. It is an ecosystem in balance.
What factor could cause an imbalance?
- ANew plants
- BDeforestation
- CNew diseases
- DNew predators
- EAll of the answers are correct.
Q9:
Look at these pictures of possible ecosystems.
Which of the pictures is an example of an ecosystem?
- AForest
- BPuddle
- CRock
- DLog
- EAll of the answers are correct.
Q10:
An ecosystem, such as the one below, remains in balance because of the relationships between the living and nonliving things.
Fill in the blank: Plants and soil have a relationship because plants .
- Aneed carbon dioxide
- Bare prey
- Cneed water and nutrients
- Dare eaten by animals
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