Global Cycles Vocabulary
Food Web Vocabulary
Food Web
Earth and Water Cycle
Carbon Cycle and Ecosystem
100

a model that describes how water molecules move among Earth’s ecosystems and atmosphere

Water Cycle
100

an interaction in a food web where one population directly affects the abundance of another

Direct Effect

100
They are plants, algae and bacteria at the bottom of the food chain

Producers

100

When rain, snow, sleet, hail fall from clouds. This is called?

Precipitation 

100

The process in which carbon dioxide is released into the atmosphere

Cellular Respiration

200

a model that describes how carbon-based molecules move among Earth’s ecosystems and atmosphere

Carbon Cycle

200

a kind of consumer that uses the wastes or dead remains of other organisms as a source of energy and matter

Decomposer

200

They are consumer at the third level of the food chain

Tertiary Consumer

200

When the liquid water go from the river to the soil, this is called?

Absorption

200

Producers use this process to make glucose from carbon dioxide, water and the sunlight energy.

Photosynthesis

300

a model that describes how nitrogen-based molecules move among Earth’s ecosystems and atmosphere

Nitrogen Cycle

300

an individual path in a food web  

Food Chain

300

They are consumers at the top of the food chain

Top/Apex Predator

300

When the water molecules from the lake and soil turn into water vapor back into the atmosphere, this is called?

Evaporation

300

What carbon molecule is present in the breath you exhale?

Carbon Dioxide

400

a scientific law that states the amount of matter in a closed system stays the same, although the forms of that matter may change

Law of Conservation of Matter

400

a model that shows feeding relationships between organisms in an ecosystem

Food Web

400

What organism recycles the waste and dead organisms back to the ecosystem

Decomposer

400

What kind of system is Earth?

A Closed System

400

What form of carbon is present in plants and then is used for cellular respiration?

Glucose

500

 the re-planting of forests that have been cut down

Reforestation

500

a model that shows how much energy is transferred from one stage to the next in a food chain

Trophic Pyramid

500
This represents the transfer of energy and matter in a food web

Arrow

500

What is one exception to the law of conservation of matter where Earth gains matter

Space objects: meteors

500

The carbon dioxide molecules is the nonliving parts of the ecosystem. What is this called?

Abiotic