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Entry Task: Lab Notebook 9/29/14

Explore the environment and diverse organisms living in the Great Salt Lake. Learn about the lake's salt content, rainfall impact, and create a food web to understand the intricate relationships between different species.

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Entry Task: Lab Notebook 9/29/14

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  1. Entry Task: Lab Notebook 9/29/14 • In at least 4 sentences, describe what you think biodiversity means.

  2. The Great Salt Lake Ecosystem Learning Target: I can describe the environment and biodiversity of the Great Salt Lake.

  3. Where is the Great Salt Lake?

  4. Environment of the Lake TURN & TALK: How might the amount of rainfall received further affect this lake? • There are salt flats that surround this lake. • The salt then leaches into the lake making it SALTY!! • It is saltier than the ocean. • It ranges from 5-27%. • The ocean is 3.5% • There are 2 rivers that dump water into the south side of the lake. • What kind of water is river water? • What does that do to the salt content of the lake? Cooking soups… what if it’s too salty? What do you do to fix it?

  5. Salinity Calculations • Salt concentration can be measured in: • Percent Salinity • Parts Per Thousand (= % x 10) • Salt concentration can be inferred as: • Density of Water • Density of water = 1 gram / cm3 = 1 g / mL • If density is greater than 1 g/mL, there is something dissolved in the water (i.e. salt)

  6. Biodiversity of the Lake • Many organisms live in or near the lake. • Northern Harrier is a bird. • It eats the Avocet, another bird. • Avocets eat Brine shrimp and Brine fly. • Eared Grebe also eats Brine fly. • Brine fly eats Cyanobacteria and Diatoms. • Brine shrimp also eats Cyanobacteria, Diatoms and it’s the only one that eats Halobacteria.

  7. Biodiversity of the Lake • Cyanobacteria is a bacteria. It doesn’t eat because it makes it’s own energy from the sun. • Diatoms are algae. They also make their own energy from the sun. • Halobacteria are Archaea. They also make their own energy from the sun.

  8. Vocabulary Review (Part 1) • Network: Used to diagram a system consisting of factors (nodes) and the relationship between those factors (edges) • Nodes: Factors in a network • Edges: The relationship between nodes Network Edge Node Node

  9. Vocabulary Review (Part 2) • Biotic factors: living things • Abiotic factors: non-living things • Ecosystem: the biotic and abiotic factors in a given place

  10. New Vocabulary Words Turn to your vocabulary section of your journal and add these words. Skip a line in between each word. Biodiversity How many different kinds of organisms there are in a given place. Food Webs A diagram showing who eats what Food Web Energy Northern Harrier Avocet

  11. Your Task • You will work in your table groups to create a food web of the Great Salt Lake ecosystem. • There is a checklist of tasks that you must make sure you show on your poster. • These are initial ideas so if you don’t know, make an educated guess! You don’t have to be right, just thoughtful!

  12. Exit Ticket: Progress Check

  13. Why is the GSL so salty? • http://www.utah.com/stateparks/great_salt_lake_facts.htm

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