Life Science
Biology
Marine & Environmental Science
Science Fair
100

The process by which green plants and some other organisms use the energy of sunlight and simple chemicals to produce their own food

photosynthesis

100

The study of living organisms

Biology

100

organs for taking oxygen from water

Gills

100

The systematic study of the natural world through observation and experimentation in order to formulate general laws

Science

200

 the smallest unit of life in creation

Cell

200

consisting of a single cell

Unicellular

200

A community of organisms that interact with each other and their physical environment

Ecosystem

200

An educated guess that attempts to explain an observation or answer a question

Hypothesis

300

a method of sorting things according to shared qualities or characteristics

Classification

300

consisting of more than one cell

Multicellular

300

A close living situation between two species where at least one of the species benefits

Symbiosis

300

an explanation of the natural world that has been thoroughly tested and is supported by a significant amount of evidence

Scientific theory

400

An organism that breaks down the dead remains of other organisms

Decomposer

400

organisms that obtain their nourishment from dead organisms

Saprophytes

400

the production of visible light by living organisms

Bioluminescence

400

a description of a natural phenomenon or principle that is supported by a significant amount of evidence and often includes mathematical terms

Scientific law

500

a cell with distinct, membrane-bound organelles

Eukaryotic cell

500

An organism’s function in its habitat, including its relationship with other organisms

Niche

500

the variable of part of an experiment to which all others will be compared

Control

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