| A | B |
|---|
| speed | how fast an object position changes with time at any given moment |
| inclined plan | a sloping surface used to move an object to a higher or lower plane |
| potential energy | energy that is ready to be released |
| adaptation | a characteristic that enables a living organism to survive in its environment. |
| weight | the amount of force gravity exerts on an object's mass |
| symbiosis | a relationship between two kinds of organisms that last over time |
| biotic factors | living parts of an ecosystem |
| kinetic energy | energy of an moving object |
| abiotic factors | non living parts of an ecosystem |
| wheel and axle | a larger wheel is connected by a smaller cylinder (axle) this is fastened to the wheels so that they turn together |
| food web | overlapping food chain in an ecosystem |
| predator | an animal that hunts other animals and producers for food |
| biomes | a major land ecosystem having a distinct combination of plants and animals |
| simple machine | a machine with few or no moving parts |
| prey | a living organism that is hunted for food |
| grassland | a biome containing may grasses but few trees. Rainfall is low to moderate |
| extinct | a population species that has completely died out. |
| taiga | a biome that contains many coniferous trees |
| producers | any of the plants and algae that produce oxygen and food that animals and humans need |
| scavengers | a meat eating animal that feeds on the remains of dead animals |
| population | all members of one species in an area |
| screw | an inclined plane wrapped around a cylinder or shaft |
| deciduous forest | a biome that contains many trees (hardwood) with moderate rainfall with a variety of animals |
| tundra | a biome characterized by cold temperatures and low rainfall |
| carnivores | an animal that eats another animal |
| velocity | the speed or direction of a moving object |
| herbivores | an animal that eat plants, algae, and other producers |
| precipitation | is rain sleet snow or hail |
| condesation | is water vapor changing to water droplets or ice crystals |
| atmosphere | the blanket of gases that surrounds Earth |
| evaporation | is water changing from a liquid to a gas called water vapor |
| humidity | is the amount of water vapor(gas) in the air |
| transpiration | water vapor gas from tree-producers |
