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Mind Stretcher Chapter 20

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Presentation on theme: "Mind Stretcher Chapter 20"— Presentation transcript:

1 Mind Stretcher 10-24-17 Chapter 20
1. What is the average temperature in November? 2. What is the average rainfall in June? 26.9 degrees Celsius 20 cm

2 Crash Course Kids: The Basics of Freshwater (4 min.)

3 FRESHWATER and ESTUARY BIOMES Write: Rivers, Lakes & Streams above your title on your page!

4 FYI: Stream and River Ecosystems
Chapter 20 FYI: Stream and River Ecosystems The water in brooks, streams, and rivers flows from melting snow, rain or a spring. Plants have a hard time growing in fast moving waters, animals rely on seeds and leaves that fall in the water.

5 Pond and Lake Ecosystems
Chapter 20 Pond and Lake Ecosystems Life near Shore The Littoral Zone: contains most of the plant life and is home to small animals. Life Away from Shore – Open Water Zone: as far as sun reaches; home to bass, trout, larger fish; Algae grows as deep as sunlight reaches. Deep Water Zone: Beneath open water zone; No sun here; Catfish, carp, worms, bacteria

6 Chapter 20

7 Chapter 20 Wetland Ecosystems Wetlands - Found around lakes, low-lying areas, and estuaries; Soil contains a lot of moisture Marshes - grasses and small plants; muskrats, turtles, frogs, birds, etc. Around estuaries - called “Salt Marshes” Swamps - trees and vines; fishes, snakes, birds, etc. Around estuaries: Called “Mangrove Swamps”

8 Marsh Swamp

9 Marshes and Swamps are IMPORTANT!!!
They filter water which removes pollutants and keeps them from entering drinking water, oceans, and freshwater. They provide shade & cover for habitat and breeding grounds. They are natural areas for run-off and can hold large amounts of water, which prevents flooding. (Hurricane Katrina)

10 Estuaries Provide Diversity
Estuaries are the most diverse water habitat, often referred to as “ nature’s nursery”.

11 Where Waters Meet… Estuary- freshwater from rivers and saltwater from the ocean mix here. “Brackish” - water mixture that is not completely fresh or completely salty. This water mixture allows for many freshwater & saltwater species of animals and plants to survive: marsh grass, small plants, & algae, crabs, worms, clams, oysters, fish, turtles, & alligators

12 Estuaries

13 Let’s Review! a freshwater ecosystem an estuary an ocean a pond
In which area are you most likely to find plants that can tolerate water that has constantly changing salt levels? a freshwater ecosystem an estuary an ocean a pond

14 Let’s Review! The biome pictured below is characterized by a low lying area covered with water. It contains trees and vegetation… swamp marsh savanna grassland

15 Let’s Review! rivers lakes estuary streams
Which of the following is NOT considered a freshwater biome? rivers lakes estuary streams

16 Let’s Review! The biome pictured below is characterized by a low wet land that has many grasses and other plants, but no trees. This biome is a… swamp marsh savanna grassland

17 BrainPop- Everglades Username: lovinggood Password: pop

18 Ch. 20-3 Freshwater Ecosystems Interactive Textbook
Read the passage & answer the questions along the sides as you go You may underline or highlight the text Finish the brief section review on the back DUE THURSDAY!!!

19 TOD: Think, Pair, Share Freshwater is not salty!
What makes a freshwater biome different from a marine biome? Give 3 examples of freshwater ecosystems. Freshwater is not salty! Ex: rivers, lakes, streams, ponds


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