section 2: flow of energy read page 26 and 27 together! … · 2018. 9. 9. · sun->...
TRANSCRIPT
SECTION 2: FLOW OF ENERGY
Read page 26 and 27 together! What does it mean to be interdependent?Where do humans get their energy?
ConsumersOrganisms that eat (consume) food
Producers- living thing(usually plants) at the beginning of a food chain capable of producing its own food through photosynthesis.
What is the formula for photosynthesis?
Scavengers and decomposers
Scavengers- organism that feeds off the remains of dead animals that are killed by other consumersExample- crows ravens and maggots
Decomposers- living thing that breaks down dead animals and plants or animal and plant wastesExample- fungi
Turn to page 32 of your textbook to find out whether they are helpful or harmful.
2.2: Food Chains Demonstrate the Flow of Energy in Ecosystems
Food Chain- pathway of energy flow from one living thing to another in an ecosystem
Energy is not recycled as it follows a one-way path.
Sun-> Producer-> primary consumer->secondary consumer-> decomposer
2.3: FOOD WEBSFood chains are a very simplified way to look at how energy moves through the environment. However, it is a complex process that can be shown in a food web.
Food Web- link-up of all the possible food chains in an ecosystem
Food Web Chain Reaction Page 40
Check and Reflect Page 43 #1-4
2.4: Matter Cycles in EcosystemsWater Cycle- the natural circulation of water from the surface of Earth to the atmosphere and back to the surface again.
page 45
Carbon Cycle- the circulation and recycling of carbon in nature
Objective Checklist:• I can identify the relationship between producers, consumers, and
decomposers in ecosystems• I can describe how energy and nutrients are stored in plants and animals• I can describe how food chains and food webs demonstrate the flow of
energy in ecosystems• I can describe how matter is recycled in ecosystems• I can predict changes to any part of a food web• I can describe the cycles of matter of water and carbon in ecosystems.