Post on 24-May-2015
3/12/12 A/B DayLEQ: How are aquatic and terrestrial food webs connected?
1. What is a wetland? 2. What is a tributary?3. What is a watershed?4. How are estuaries and wetlands similar? How are they different?5. Copy and complete: Most of our freshwater is located [underground/in lakes and rivers/frozen in glaciers and polar ice caps]
Track your progress!-1 = 96 -9 = 64 -17 = 32-2 = 92 -10 = 60 -18 = 28-3 = 88 -11 = 56 -19 = 24-4 = 84 -12 = 52 -20 = 20-5 = 80 -13 = 48 -21 = 16-6 = 76 -14 = 44 -22 = 12-7 = 72 -15 = 40 -23 = 8-8 = 68 -16 = 36 -24 = 4
Today’s LEQ: How are aquatic and terrestrial food webs connected?
By the end of today, you should be able to…
1. Identify aquatic and terrestrial animals2. Describe how energy flows through different
trophic levels3. Explain the concept of interconnected food
webs
Focus Vocabulary:
128. Producer129. Consumer130. Decomposer131. Photosynthesis132. Aquatic/Terrestrial133. Trophic Level134. Food Web
Draw a T-Chart in your notes:
Sort these into your T-Chart!
Seaweed
BearEagle
AlgaeMouse
SharkTree
Snake KrillFish
Ant Turtle Rabbit
FrogShrimp
DolphinHuman
HOW DID YOU SORT THEM?!
Ways we could sort them…
Plants or Animals?
Water or Land?
Predators or Prey?
Draw this in your notes:FOOD CHAIN
FOOD CHAIN
PRODUCERS: Make their own food by PHOTOSYNTHESIS (using sunlight to
create energy)
BrainPop: Photosynthesis
Chemical Reaction: Photosynthesis
CO₂ + H₂O C₆H₁₂O₆ + O₂
Carbon Dioxide
Water
Glucose (plant food)
Oxygen!
What are the reactants?What are the products?
FOOD CHAIN
PRODUCERS: Make their own food by PHOTOSYNTHESIS (using sunlight to
create energy)
PRIMARY CONSUMERS: eat plants
FOOD CHAIN
PRODUCERS: Make their own food by PHOTOSYNTHESIS (using sunlight to
create energy)
PRIMARY CONSUMERS: eats plants for energy
SECONDARY CONSUMER: eats primary consumers for energy
Identify: producer, primary consumer, secondary consumer, and tertiary consumer
Draw this in your notes:
Producers Consumers
Sort these into your T-Chart!
SeaweedBear
Eagle
AlgaeMouse
SharkTree
Snake KrillFish
Ant Turtle Rabbit
FrogShrimp
DolphinHuman
Which of our consumers are primary consumers? Which are secondary or tertiary consumers?
FOOD CHAIN
PRODUCERS: Make their own food by PHOTOSYNTHESIS (using sunlight to
create energy)
PRIMARY CONSUMERS: eats plants for energy
SECONDARY CONSUMER: eats primary consumers for energy
DECOMPOSERS: Break down dead things to get energy
Brainpop: Food Chains
1st Trophic Level
What is in the first trophic level?
Which of these are in the first trophic level?
SeaweedBear
Eagle
AlgaeMouse
SharkTree
Snake KrillFish
Ant Turtle Rabbit
FrogShrimp
DolphinHuman
1st Trophic Level
2nd Trophic Level
What is in the second trophic level?
Which of these are in the second trophic level?
SeaweedBear
Eagle
AlgaeMouse
SharkTree
Snake KrillFish
Ant Turtle Rabbit
FrogShrimp
DolphinHuman
1st Trophic Level
2nd Trophic Level
3rd Trophic Level
What is in the third trophic level?
Which of these are in the third (or fourth) trophic level?
SeaweedBear
Eagle
AlgaeMouse
SharkTree
Snake KrillFish
Ant Turtle Rabbit
FrogShrimp
DolphinHuman
How does energy go through the food chain?Not all trophic levels in the food chain are created
equal! Every organism in the food chain takes in energy, either from the sun (through photosynthesis) or from eating something else. But, every time something gets eaten, it doesn’t transfer all of its energy—just some of it. For example, it takes a rabbit lots of energy to grow bones and teeth, but hawks don’t EAT bones and teeth, so the hawk doesn’t get all of the energy that a rabbit has!
As a result, every time we go UP one trophic level, only about 10% of the energy gets passed on. That’s why we draw food chains in a pyramid—the 1st trophic level (the producers) have a TON of energy, so it’s place on the pyramid is much bigger than the secondary and tertiary consumers (like eagles or sharks) at the top of the pyramid.
MOST ENERGY!
LEAST ENERGY!
WHERE IS THE MOST ENERGY?
CONTEXT CLUES:
“Fish, shrimp, whales, krill, coral reefs, and kelp are all a part of the aquatic world”
“The terrestrial environment around my house is very interesting—there are trees, grasses, rocks, insects, and mammals such as raccoons and squirrels.”
Stop and Jot: Write your own definition of
Aquaman!
Aquatic Terrestrial
Aquatic
WORD WEB: What words do you associate with “aquatic”?
Terrestrial
WORD WEB: What words do you associate with “terrestrial”?
Draw this in your notes:
Aquatic Terrestrial
Sort these into your T-Chart!
SeaweedBear
Eagle
AlgaeMouse
SharkTree
Snake KrillFish
Ant Turtle Rabbit
FrogShrimp
DolphinHuman
Video on a bear eating a fish
• http://www.youtube.com/watch?v=QzZ4systdZc&feature=fvwrel @ 1:45
Bears and Salmon:
How are these animals related?
How are they different?
Draw this in your notes:Food Web: used to show the connections between different food chains
What are some ways in which aquatic and terrestrial food webs are connected?
What are some ways in which aquatic and terrestrial food webs are connected?
EOG Question:
Which of these is a primary consumer?
a) grassb) wolfc) hawkd) mouse
EOG Question: In an aquatic food web, which of the following would get its energy directly from the sun?
a) krillb) fishc) algaed) killer whale
EOG Question: Look at the following food chain:
grass cricket frog snakeWhich of these is the secondary consumer?
a) grassb) cricketc) frogd) snake
Draw your own food web: CIRCLE all the connections between aquatic and terrestrial
food chains!
SeaweedBear
Eagle
AlgaeMouse
SharkTree
Snake KrillFish
Ant Turtle Rabbit
FrogShrimp
DolphinHuman
Summarizer1. How do producers get their energy?2. What is example of a connection between an
aquatic and a terrestrial food chain?3. What is the difference between a primary
consumer and a secondary consumer?4. What trophic level are trees in?5. Why do you think decomposers are
important?6. Which trophic level of the food chain has the
most energy?
Discovery Education:Food Chains and Food Webs