Ch. 3 Lesson 1 What are

ecosystems?

environment• everything that surrounds

a living thing• has living parts (plants,

animals) & nonliving parts (air, water, soil, climate)

climate• weather in a place all year

ecosystem• living &

nonliving parts of an environment that interact with each other

Name the living and nonliving parts of this ecosystem.

Interacting parts of an ecosystem

Living NonlivingPlants Light/heat

Animals Air/water

Other living things

Rocks/soil

• place where a living thing makes its home

habitat

population• all the living things of the

same kind that live in the same place at the same time

community• all the

populations that live together in the same place

• populations in a community depend on each other

Youtube video-Population, Community, Ecosystem

Ecosystems change over

time.

What is something

else that can cause an

ecosystem to change?