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5th Vocab Review

Force a push or pull
Friction a force that opposes motion
gravity a force of attraction between two objects
balanced forces forces on an object that are equal in size and opposition in direction
unbalanced forces forces that cause a change in motion
position the location of an object in relation to a nearby object or place
motion a change in position
speed how the position of an object changes during a certain amount of time
velocity the speed of an object in a particular direction
food chain the transfer of energy from one organism to the next in an ecological community
food web a diagram that shows how food chains overlap
energy pyramid a diagram that shows how much energy passes from one organism to another up a food chain.
Photosynthesis the process by which plants and plant-like organisms make food
chlorophyll a green molecule
producers organisms that make their own food
consumers organisms that cannot make their own food
adaptation a characteristic that helps a living thing survive
instinct behaviors that animals know how to do without being taught
environoment all the living and nonliving things that surround and affect an organisms.
ecosystem all the organisms living in a place together with their environment
population a group of organisms of the same species in the same ecosystem
community the populations that live and interact in an area
habitat the place where an organism lives within an ecosystem
niche an organisms complete role or function in its ecosytem
astronomy the study of objects in space and their characteristics
stars huge balls of hot, glowing gas that produce their own heat and light
universe everything that exists
galaxy a group of billions of stars, the objects that orbit the stars, gas, and dust
solar system a group of object in space made up of a star and the planets and other space objects that revolve around it
planet a large, round body that revolves around a star
dwarf planet nearly round bodies whose orbits cross the orbits of other bodies
revolve to move around another thing
orbit the path that an object takes around another object in space
rotate to spin
axis an imaginary line that runs through Earth's center from the North Pole to the South Pole
bioengineering applying the engineering design process to living things
biotechnology a product used to benefit organisms of their environment
engineering using knowledge of science and mathematics to find solutions to everyday problesm
technology any device that people use to meet their needs and solve practical problems
prototype a working model
criteria standards that help engineers measure how well their design is doing its job.
Microscopic too small to see with just your eyes alone
balance a tool used to measure mass, the amount of matter in an object
spring scale a tool used to measure the force, or pull, of gravity on an object
accurate correct, without error
investigation a procedure carried out to carefully observe, study, or test, something in order to learn more about it
science the study of the natural world. Science involves making observations and performing investigations.
evidence information collected during a scientific investigation
opinion a belief or judgment
scientific method ways that scientists perform investigations. Scientific methods use logic and reasoning
experiment an investigation used to test an hypothesis in which all the conditions are controlled
variable any condition in an experiment that can be changed
control the setup to which all the other setups are compared
Created by: Teach456
Popular Science sets




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