GRAMMAR: TOPIC SENTENCES SUPPORTING SENTENCES CONCLUDING SENTENCES.
Ecosystemsnossaclassevirtual.weebly.com/.../ecosystems.pdf · Understanding Ecosystems Use the...
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EcoSystems
Source: Purposeful Design Science—level 3
What lives in your environment?
Think about all the things plants and animals need to survive. All
living things need air, food, water, and shelter. An organism is a
living thing. Is a plant an organism? Is a fly an
organism?
All organisms need a place to live. Everything around an organism is
its environment. In an environment, an organism finds everything it
needs to live including air, food, water, and shelter. An environment
includes living and nonliving things.
Nonliving things include rocks, minerals,
air, and water.
An ecosystem consists of a group of
living and nonliving things that Interact with each other in an
environment. How do plants and animals use nonliving things in their
environment? How can a rock be helpful to a plant and animal? God
has given us the responsability for the other living things on this earth. In
order to do this job, we need to learn all we can about how plants and
animals live.
The scientific study of the relationship
between living things and their environment is
called ecology. Ecology is important because it
helps us identify problems within our
environment. A scientist Who studies the
relationship between living things and their
environment is called an ecologist.
A heron can find food, water, shelter,
and air in this wetland environment
Understanding Ecosystems
Use the vocabulary words to complete the sentences:
1. An ____________________ is a living thing.
2. The scientific study of the relationship between living things and their
environment is called ________________________.
3. A scientist who studies the relationship between living and nonliving
things is called an ___________________.
4. An _________________ is everything around an organism.
5. An _________________ consists of a group of living and nonliving
things that Interact with each other in an environment.
What can you do to help the environment?
______________________________
______________________________
______________________________
______________________________
______________________________
What do animals eat?
God designed some animals to eat plants and some animals to eat
other animals. A producer is an organism that can make its own food. A
tree is a producer. Can you name another producer?
A consumer is an organism that eats
food. A consumer can eat a producer or a-
nother consumer. A bear is a consumer that
can eat either a producer such as a Berry,
or a consumer such as a fish. Can you think of another consumer?
environment - ecology ecologist - ecosystem
organism
An organism that breaks down dead plant and animal material to
return to the soil is called a decomposer. A decomposer, such as an
earthworm or an ant, helps keep
areas clean by getting rid of dead
materials.
Food Chain and Food Web
Animals eat plants and other animals to
get the food they need to live. A food chain
is the way food passes from one organism
to another. A food web is formed when se-
veral food chains are connected together.
This means that some animals can eat more than Just one type of food.
Understanding a Food Chain
1. Complete the cart by writing a name under each heading.
2. Use the Word Bank to complete the sentence.
One Word will not be used.
3. How does a decomposer help an ecosystem?
_______________________________________
_______________________________________
Decomposer Producer Consumer
Word Bank
berries fox frog rabbit
A food chain shows _____________ eaten by a
_____________ that is eaten by a _____________.
Bush Berry Mushrooms
Grasshopper
What do animals hunt?
Imagine IF you had to go out and Hunt for your food like many
animals do? God created some animals to Hunt for their food. A
predator is an animal that hunts another animal for food.
A Fox is a predator of a rabbit because it hunts the
rabbit for food. The animal that is hunted is called
a prey. The rabbit is prey for the Fox.
Can you name another predator and its prey?
Once an animal has died, there are animals that will eat the remains.
An animal that eat dead plants and animals is called a scavenger.
Hyenas and vultures are scavengers that eat dead animals.
Identifying Animals
Use the Word bank to complete each sentence. One Word will not be used.
1. A ______________ is a predator of a ___________________.
2. A _______________ is a scavenger that eats ___________ animals.
3. A fish is _______________ for a bear.
4. Why are scavengers important to an ecosystem?
__________________________________________________________________________________________________________________
Word Bank
Vulture Mouse Dead Prey Fox predator