3.2 Living in Water. A) VENN diagram - a type of knowledge organizer

Transcription

1 3.2 Living in Water A) VENN diagram - a type of knowledge organizer Read pages 90 to 91. Compare and contrast rivers and lakes. List points on the river side that apply only to rivers. List points on the lake side that apply only to lakes. Where the circles intersect, list all the points you can think of that apply to both rivers and lakes.

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3 life is found near the bottom Fast-moving water move water into basins fewer plants more likely to have a rocky bottom Uniform temperature important part of water cycle contain plankton, such as algae home to frogs, insects birds, plants, fresh water source fish most life is near the shore Slow-moving Water catch and store run-off deep larger organisms Plants nutrients in sediment on bottom thermocline

4 phytoplankton Microscopic, free floating plant organisms, a type plankton that produce their nutrients through photosynthesis. organism = a living thing Microscopic = small and can t be seen by naked eye

5 zooplankton Microscopic, free floating animal organisms, a type plankton, that are tiny animals that eat other types of plankton for food Note: they eat both other zooplankton and phytoplankton

6 estuary is an area of wetland that builds up where a river meets the ocean. nutrients that come from the land, rivers, and the ocean accumulate here ideal environments for both plants and animals

7 bioindicator species Organisms that are sensitive to pollution or other environmental changes; (ex: plants and animals) Monitoring the numbers of these organisms helps scientists to gather information about the health of an ecosystem. Ex: a) Invertebrates (no backbone), like salt water clams b) Insects like stonefly, caddisfly, mayfly larvae in freshwater

8 Larvae in fresh water that are bioindicators andcollege.co m/programs/e nvironmental-a pplied-science -technology/ Mayfly caddisfly stonefly

9 Mosses on trees are a major bioindicator species loss of moss OR changes in mosses indicate air pollution. Scientist testing mosses. He will send samples to a lab for testing for heavy metals (cadmium, arsenic) that come from industrial air pollution. article

10 bioluminescence is the ability of certain marine fish and invertebrates to light up part of their bodies through a chemical reaction. plankton

11 It must be quite dark to see the plankton,(( Maldives)

12 Lightfish Deep Ocean

13 Sea Jelly

14 Moon Jellys PEI

15 C) 4 ways wetlands are important The vegetation acts as filters for removing pollutants from the water (trees, shrubs, grasses, cattails, lilies)

16 C) 4 ways wetlands are important Wetlands hold a huge quantity of water, which helps prevent flooding Wetlands are like a big sponge. Sussex NB, (HINT: don't build malls and parking lots over wetlands and next to rivers).

17 C) 4 ways wetlands are important Vegetation (plants) acts as filters for removing pollutants from the water.

18 C) 4 ways wetlands are important They act as a resting point for many migrating birds.

19 D) Where is the greatest abundance of life found in the ocean? found in the top 180 m of water ie the Surface Layer, aka Mixed LAYER (warmest layer)

20 E) Canada is home to what percentage of the world's wetlands? ¼ or 25% of the WORLD s wetlands

21 F) How do organisms that live deep in the ocean use bioluminescence to survive? Deep-ocean organisms use bioluminescence to 1. find food 2. attract a mate 3. scare away predators. G) What percent of ocean life forms live in total darkness? 10%

22 H) What percent of ocean life lives on the continental shelf? Why? 90% because that is where the greatest food source is located (both plant and animal sources).

23 Find the meaning of the non bolded terms Ri5AEXA/edit?usp=sharing

24 1. Where do warm currents originate? 2. How do warm currents affect climate? 3. Where do cold currents originate? 4. How do cold currents affect climate? 5. How does the difference in temperature between water and land affect weather systems? 6. Why is Britain s climate much milder than northern Labrador's, even though both places are at approximately the same latitude? See P82-83

25 1. Warm currents originate near the equator, where the Sun s heat is most intense. 2. Warm currents affect the climate by transferring their heat to the atmosphere. 3. Cold currents originate in the Arctic and Antarctic regions. 4. Cold currents affect the climate by drawing heat from the air. 5. The difference in temperature between water and land affects weather systems by producing breezes that alter the process of evaporation and condensation near the shoreline. A warm body of water can radiate heat into the air, and a cold body of water can draw heat from the air. 6. Britain s climate is warmer than northern Labrador's climate because the Gulf Stream carries warm water to the British Isles.