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FCAT Gr5, 1
Science Vocabulary
Word | Definition |
---|---|
atom | the smallest unit of an element that has all the properties of that element |
carnivore | an animal or plant that eats animals |
community | all the populations of organisms living together in an environment |
conservation | protection of natural resources |
consumer | an organism that eats other organisms |
decomposer | consumer that breaks down the tissues of dead organisms |
density | concentration of matter in an object |
ecosystem | a community and its environment |
energy | the ability to cause changes in matter |
energy pyramid | shows amount of energy that can pass from one level of a food chain to the next |
energy transfer | a change of energy from one form to another; for example, mechanical to electrical, solar to electrical |
environment | everything that affects an organism, including plants, animals, soil, weather, landforms, and air |
experiment | a procedure that is conducted under controlled conditions |
food chain | the ways in which organisms in an ecosystem interact according to what they eat |
food web | shows the interactions among food chains in an ecosystem |
force | a push or pull that causes an object to move, stop, or change direction |
friction | a force that acts against motion when surfaces rub against each other |
gravitation | the force that pulls all objects to one another |
gravity | the observed effect of gravitation |
habitat | a place in an ecosystem where an organism normally lives |