2. EQ: What is an ecosystem?
Vocabulary Words
Environment
Ecosystem
Population
Community

3. Ecosystems
All living things around you make up the environment. An environment includes living things and nonliving things. Living things include people, animals, and plants. Non- living things include soil and weather.

4. Ecosystems
All the things that interact in an environment make up an ecosystem. An ecosystem has two parts- living and nonliving things. An ecosystem can be small or large, wet or dry, cold or hot.

6. Individuals and Populations
One deer is an individual. A group of deer is called a population. A population is a group of the same kind of plant or animal living in the same ecosystem.

7. Individuals and Populations
Individual Population

8. Communities
Amazon Rain Forest Blue Ridge Mountains Plants, animals, and people live together. They live in a community. A community is all the populations that live in the same place. Look at these different communities.

9. Review Questions What is an ecosystem? Give an example.
What are the 2 parts of an ecosystem? Give and example.
What is the difference between individual and populations? Give an example.
What is a community?

10. EQ: What are the roles of producers, consumers, and decomposers?
Vocabulary Words
producer
omnivore
consumer
herbivore
carnivore
decomposer

11. Producers
Any living thing that makes its own food is called a producer. Plants are producers. Producers can be small, like moss, or large, like an oak tree.

12. Consumers
An animal that eats plants or other animals is called a consumer. Consumers cannot make their own food. Consumers must eat other living things.

14. There are 3 kinds of consumers, herbivores, carnivores, and omnivores.

18. Decomposers
A decomposer eats dead plants or animals. Decomposers also break down waste. Earthworms are decomposers. They eat dead plants. Fungi are decomposers too. They break down wood from dead trees.

20. Review Questions What are producers? What are consumers?
Describe the 3 kinds of consumers.
Give an example of each kind of consumer.
What are decomposer and how do they help the Earth?

21. EQ: How does energy flow through an ecosystem?
Vocabulary Words
habitat
niche
food chain
prey
predator
food web
energy pyramid

22. Habitats
A habitat is an environment that meets the needs of a living thing. An insect’s habitat can be small as the space under a rock. A migrating bird’s habitat can cross a continent.

23. Types of Habitats

25. Niche Each living thing in a habitat, has a role, or niche. A niche
is how a living thing works within an ecosystem.
A niche includes these things:
where a plant or animal lives
how it reproduces
where the animal gets its food
how an animal stays alive
What is the niche of the
lion in the picture?

26. Food Chains
A food chain shows the path of food energy. Most food chains start with producers, or plants that get energy from the sun.

27. Prey and Predators
Consumers that are eaten are called prey. Consumers that eat prey are called predators. Can you locate the prey and the predators in the picture?

28. Food Webs
A food chain shows how an animal get energy. When food chains cross, they make food webs. Food webs can be on land and in the ocean.

29. Food Webs Top Level Consumers 2nd Level Consumers
Eats 2nd level consumer but when top level consumers die, decomposers help break down their remains
2nd Level Consumers
Eats a first level consumer
1st Level Consumers
at the bottom of food web. They each producer

30. Energy Pyramid
An energy pyramid shows how much energy is passed on from one thing to another. Producers are at the bottom of the energy pyramid.

31. Energy Pyramid

32. Review Questions What is a habitat? Give an example.
What things are included in a niche?
Describe the difference between a food chain and a food web.
Give examples of a prey and predator. How are they different?
What does an energy pyramid show? Give an example?

33. EQ: What factors influence ecosystem?
Vocabulary Words
abiotic
biotic

34. Living Things Affect Ecosystem
Plants and animals are the living parts of an ecosystem. Living parts of an ecosystem are biotic, which means they are living.

35. Living Things Affect Ecosystem
Plants and animals affect the ecosystem in many ways. HOW? 1.Plants are food for animals, so if a plant dies, there is less food for the animals.
2. Birds and deer spread seeds. This causes the plants to grow in new places.

37. Non - Living Things Affect Ecosystem
Soil Sunlight Water Ecosystems have no living parts also. Sunlight, air, water, and soil are nonliving. These nonliving parts of an ecosystem are called abiotic.

38. Climate Affect Ecosystem
Climate also affect an ecosystem. It affects the soil, the plants that grow in an ecosystem, and the animals that live in an ecosystem. How do you think the climate has affected these ecosystems? Think about the soil, animals, and plants that may thrive there.

39. Review Questions
Describe the difference between abiotic and biotic. Give examples.
How does climate affect an ecosystem?
How does living and non living things affect and ecosystem?