Lesson 1
All of Earth's organisms and the environments in which they live
Biosphere
the continuous circulation of nitrogen from air to soil to organisms and back to air or soil is the:
Nitrogen Cycle
Which organisms use energy from the Sun to make their own food?
Producers
The overlapping food chains in an ecosystem
Food Web
A process through which a liquid changes into a gas
Evaporation
All Earth's liquid and solid water
Hydrosphere
excess water that flows over Earth's surface from a storm or flood is
Runoff
Organisms that cannot make their own food are
Consumers
Sunlight, carbon dioxide, and water are necessary for plants to
Produce Energy
Water that falls from clouds to the ground in the form of rain, sleet, hail and snow
Precipitation
Are a collection of different components that all work together
Systems
3 states of Matter
3 states of Water
Solid, Liquid, Gas
Ice, Liquid, Water Vapor
Are organisms that break down dead or decaying plant and animal materials.
Decomposers
What is at the base of a Food Chain?
Producers
Continuous movement of water between Earth's surface and the air, changing from liquid into gas into liquid is
The Water Cycle
What are the 4 systems?
atmosphere, hydrosphere, biosphere, and geosphere
Energy source for the water cycle
The sun
A simplified model that shows a single path for energy flow through an ecosystem is
Food Chain
Which spheres interact in a mountain?
biosphere, geosphere and atmosphere
The continuous exchange of carbon dioxide and oxygen among living things
Oxygen-Carbon Cycle
Blanket of gases surrounding Earth
Atmosphere
Is a waste product produced by all living things, including plants, when they use energy:
Carbon Dioxide
The movement of energy from one organism to another in a food chain or food web
Energy Flow
The part of Earth from its surface to its center
Geosphere
The process through which a gas changes into a liquid
Condesation