Glossary: Terms Starting with K
8 definitions in Science with links to the lessons that teach each word.
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key
ScienceFrom Grade 3
a tool of questions used to identify things
Learn it in: Classifying animals (Grade 3), Classification of organisms (Grade 6)
keystone species
ScienceFrom Grade 5
a species with a big effect on its ecosystem
Learn it in: Food webs (Grade 5)
kinetic energy
ScienceFrom Grade 5
energy of movement
Learn it in: Forms of energy (Grade 5), Particle movement (Grade 6), Forms of energy (Grade 6)
kingdom
ScienceFrom Grade 6
one of the largest groups of living things
Learn it in: Classification of organisms (Grade 6)