| A | B |
|---|
| the process by which a liquid changes into a gas | evaporation |
| a plant eater, a primary consumer | herbivore |
| any form of water that falls from clouds | precipitation |
| an organism that must eat to get its energy | consumer |
| the rise in temperature that the Earth experiences because certain gases in the atmosphere are trapped | greenhouse effect |
| the hypothesized rise in Earth's average temperature from excess carbon dioxide | global warming |
| a meat eater, a secondary consumer | carnivore |
| the process by which a gas changes into a liquid | condensation |
| an organism that makes its own food, a plant | producer |
| a short-term climate change that occurs every 2 to 10 years caused by a rise in surface water temperature in the Pacific | El Nino |
| all the living and nonliving things that interact with each other in an environment | ecosystem |
| the energy of sunlight--it drives the water cycle | solar energy |
| the process of using the energy in sunlight to make food from water and carbon dioxide | photosynthesis |
| the force of attraction or repulsion some materials have on other materials | magnetism |
| a place in an ecosystem where a population lives | habitat |
| the ability to cause changes in matter | energy |
| a system with many parts | circuit |
| an animal that a predator eats | prey |
| energy caused by a vibrating object | sound |
| the special role each organism plays in its habitat | unique niche |
| the power to affect the way an organism develops or behaves without using direct force | influence |
| resources that are never used up as they are being used | inexhaustible resources |
| a combination of 2 or more substances that do not chemically change | mixture |
| the concentration of matter in an object; tightly or loosely packed | density |
| characteristics that are passed from parents to offspring | inherited traits |
| resources that nature can not replace quickly enough to meet people's needs | nonrenewable resources |
| a liquid mixture in which the particles of each substance are evenly mixed | solution |
| the amount of matter in something | mass |
| a behavior an animal develops by observing other animals or by being taught | learned behavior |
| resources that nature can produce again and again in a relatively short period of time | renewable resources |
| a set of interchanging parts | system |
| a characteristic of matter that can be seen, felt, heard, smelled, or tasted | physical properties |
| a change in the shape or characteristics of an animal's body as it grows | metamorphosis |
| the bending of light rays when they pass through a substance | refraction |
| the light energy that bounces off objects | reflection |
| a material that blocks energy from moving through | insulator |
| a push or pull that causes an object to move, stop, or change direction | force |
| a group of animals or plants whose members are similar and can breed together | species |
| the movement of thermal energy from one place to another | heat |
| the average temperature and rainfall of an area over many years | climate |
| depositing sediment in a new location | deposition |
| a smooth steady movement of liquid, gas, or electricity | flow |
| the stages in an organism's life from birth to death | life cycle |
| the flow of electrical power or charge through a circuit | electricity |
| a material that allows energy to pass through | conductor |
| the process of making more organisms of the same kind | reproduction |
| the state of continuing to live or exist | survival |
| the structure or behavior that helps an organism survive in its surroundings | adaptation |
| a complete pathway of conductors that allows electricity to flow through it | electric circuit |
| a natural force that tears apart parts of the earth | destructive force |
| the movement of weathered material by water, wind, or ice | erosion |
| a natural force that helps build up parts of the earth | constructive force |
| fuels formed in the ground from the remains of dead plants and animals | fossil fuels |
| anything that has mass and takes up space | matter |
