1-5
6-10
11-15
16-20
21-25
100

Earth's core, mantle, and crust all the material above and below the surface of Earth that forms the planet's mass.

Geosphere

100

a diverse group of organisms that interact in a common location

Community

100

a group of chemicals that contain no carbon. Examples include ammonia, hydrogen sulfide, all metals, and most elements

Inorganic

100

Organism that eat mostly green plants or algae

Herbivores

100

Sequence of organisms in which each organism is a source of nutrients or energy for the next level of organisms

Food Chain

200

Envelope of gasses surrounding Earth.

Atmosphere

200

Group of interbreeding individuals of the same species,usually living together in a group

Population

200

An organic compound; or any substance containing carbon-based compounds, especially produced by or derived from living organisms.

Organic

200

Consumer that feeds on both primary and secondary consumers

Tertiary Consumer

200

Consumer organism that feed on detritus freshly dead organisms

Detrivore

300

All of the gaseous, liquid, and solid water on or near Earth's surface

Hydrosphere

300

an individual animal, plant, or single-celled life form.

Organism

300

Organisms such as a plant that makes food it needs from compounds in soil,carbon dioxide, air, and water by using sunlight

Producer

300

Animals that feed on primary consumers.

Secondary Consumer

300

Consumers that get their nutrients by breaking down nonliving organic matter such as leaf litter, fallen animals and dead animals

Decomposer

400

Zone of the earth where life is found. It consists of parts of the atmosphere

Biosphere

400

a nonliving part of an ecosystem that shapes its environment.

Abiotic

400

Geographical area composed of different ecosystems and characterized by a distinct climate and certain species that are able to survive there.

Biome

400

Organism that eats mostly green plants or algae.

Primary Consumer

400

Animals that can use both plants and other animals as food sources.

Omnivore

500

Biological science that studies how living things interact with the living and nonliving parts of their environment

Ecology

500

Consisting of living organisms. An ecosystem is made up of a biotic community

Biotic

500

One or more communities of different species interacting with one another and with the chemical and physical factors of their own nonliving environment

Ecosystem

500

Organism that cannot produce its own food and get it organic nutrients by feeding on the tissues of producers or other customers

Consumer

500

Animal that feeds mostly on other animals

Carnivore

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