3rd Grade Ch. 3 Lesson 4 What are Water Ecosystems

Ch. 3 Lesson 4Ch. 3 Lesson 4What are water What are water ecosystems?ecosystems?

fresh-watereco-

systems

lakes ponds rivers streams

moving water

surrounded by

land

wetland• low land that is covered by

water at least part of the year

Wetland video clip

• example: Everglades• “river of grass”

• water – shallow & flows very slowly

Everglades National Park

Welcome to the Florida Everglades video clip

saltwater ecosystem

top

deep sea

saltwater ecosystems

•oceans cover much of Earth’s surface

•most sea life on top

•rivers flow ocean

salt marsh•wetlands when fresh water from rivers mix with salt water from ocean

Salt Marsh Facts and Fun video clip

Examples:

Wetlands- Everglades

Lakes & ponds

Rivers & streams (moving water)Oceans contain salt

Cover much of Earth’s surface

Rivers flow into them

Most life is at the top