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30 Cards in this Set

  • Front
  • Back
an organism that eats other organisms
Consumer
the changing of a liquid into a gas
Evaporation
the mass of a substance divided by its volume
Density
the place in an ecosystem where an organism lives
Habitat
a push or pull that acts on an object
Force
the ability to do work or cause a change
Energy
the movement of materials away from one place
Erosion
anything that has mass and occupies space
Matter
the bouncing of light or wave from a surface
Reflection
the process by which plants use light energy to make sugars
Photosynthesis
a group of different body tissues combined together into one structure to perform a main job in the body
Organ
a gigantic ball of hot gasses that give off electromagnetic radiation
Star
a supply that will meet a need
Resource
the changing of a substance or kind of matter into a different kind of matter with different properties
Chemical Change
inherited behavior that helps animals to survive
Adaption
an organism that gets nutrients by breaking down dead organisms
Decomposer
careful use of natural resources
Conservation
the bending of light or waves as it passes from one material to another
Refraction
a mixture in which a substance breaks up into its most basic parts and spreads evenly through another substance
Solution
the surface features and shape of the solid surface of the Earth
Topography
the space an object takes up expressed in cubic units
Volume
a group of same cells working together doing the same job
tissue
a simple machine consisting of a wheel that revolves around an axis
Wheel and Axle
an indication of the fraction of the moon that is illuminated as seen from the Earth
Moon Phases
the tendency of an object to resist change in motion
Inertia
type of rock formed when magma or lava cools and hardens
Igneous Rock
an energy source formed from the remains of once living things from long ago
Fossil Fuels
the basic building blocks of matter; they cannot be separated into parts
Element
a contact force that resists the movement of one surface past another surface
Friction
the layer of gases that surrounds the Earth
Atmosphere