cycles in nature. the cycles of matter three cycles that moves matter among the environment and...
TRANSCRIPT
Cycles in Nature
The Cycles of Matter
Three cycles that moves matter among the environment and living thingsWater cycleCarbon cycleNitrogen cycle
The Water Cycle – Let’s review
The Water Cycle
The movement of water among oceans, atmosphere, land, and living things.
Precipitation- water moving from atmosphere to landEx: rain, snow, sleet, hail91% falls into the ocean, 9% on land
renews fresh water supply
The Water Cycle
Evaporation- water moving from the land to the atmosphereThe sun’s heat causes water to change
from liquid to vapor
Condensation- water vapor becoming liquid again due to cool atmosphereTranspiration- water moving from living things back into the atmosphereEx: evaporation from leaves, perspiration
from humans
The Water Cycle
Ground Water- precipitation that seeps into the ground and is stored in underground caverns and porous rockProvides water for the soil, streams, rivers,
and oceans
Our water supply is not getting larger so we must protect our fresh water from pollution!!
The Water Cycle
The Carbon Cycle
The Carbon Cycle
The movement of carbon from the environment into living things and back again
Carbon is essential to all living things because it is part of our molecules.
The Carbon Cycle
Photosynthesis- carbon moves from the environment into living thingsPlants use carbon dioxide from the air to
make sugarAnimals get carbon from eating plants
Respiration- carbon moves from living things back to the environmentSugar molecules are broken down to
release energy and carbon dioxide is given off when we exhale
The Carbon Cycle
Decomposition- carbon moving from dead organisms back to the environmentFungi and bacteria decompose dead
organisms
Combustion- the process of burning fuelBurning fossil fuels releases carbon back
into the atmosphere
The Carbon Cycle
The Nitrogen Cycle
The Nitrogen CycleThe movement of nitrogen from the environment to living things and back again.78% of our atmosphere is nitrogen gas
Nitrogen fixation- the process of bacteria changing nitrogen gas into usable nitrogen for plantsAnimals get nitrogen from eating plants
Other bacteria decompose dead animals and animal waste and return nitrogen to the atmosphere
The Nitrogen Cycle
Dr. Destruction Comic Strips
You will be responsible for creating a comic strip featuring an evil villain who plans to destroy an ecosystem by interrupting one of the cycles that runs in an ecosystem.Choose one cycle from the following: Water Cycle Carbon Cycle Nitrogen Cycle
Dr. Destruction Comic StripsThe comic strip must explain: The way the cycle works How the villain plans on disrupting the cycle What effects the villain’s interruptions will
have on the cycle What plan your superheroes have for
stopping the interruption
You will be graded on: Having all requirements in your comic strip Using color and creativity in the final product All members will be graded on the final
project with a participation grade added based on their involvement in the project.