58MotionThe state in which one object’s distance from another is changing
59Renewable ResourcesResources that can be easily remade and usually recycled.
60Non-Renewable Resources Resources that CANNOT be easily renewed
61Fossil FuelsFuels formed in the ground from the remains of dead plants and animalsExamples: coal, oil, & natural gas
62Inexhaustible Resources Resources that can never be used up.Examples: Sunlight & Wind
63Constructive ForcesA force that changes the shape of the Earth surface by making new landforms.Example: Volcanoes
64Destructive Forces A force that breaks down earth’s surface. Example: Earthquake
65GlacierA large body of moving ice that stays frozen all year.
66WeatheringThe breaking down and wearing away of rock.
67ErosionThe carrying away or movement of rock and soil caused by wind, water, and ice.
68DepositionThe dropping of sediments by water, wind, or ice.
69SedimentSoil, sand, silt, and other pieces of rock which wash from the land into water.
70SoilA material made of tiny pieces of rock, minerals, and decayed plant and animal matter.
71RetainTo hold within; usually dealing with the retention of water in soil.
72PermeabilityAbility to transmit fluids through pore spaces.
73Solar System The Sun (Star) The 8 planets (1) Mercury (2) Venus (3) Earth(4) Mars(5) Jupiter(6) Saturn(7) Uranus(8) NeptuneAnd the many other objects that orbit the sun such as, comets, meteors, andasteroids.
74Rotation The spinning motion of Earth on its axis. It takes Earth approximately 24 hours to rotate once on its axis.
75Revolution The movement or orbit of an object around another object. It takes the Earth approximately 365 days to revolve around the Sun.
76Seasons Caused by the tilt of the Earth on its axis. Generally based on broad climatic patterns;Four seasons: spring, summer, autumn (fall), and winterCaused by the tilt of the Earth on its axis.
77GravityA force of attraction, or pull, between any object and other objects around it. Gravity is the force that pulls you down to earth.Responsible for keeping planets in orbit around Sun.
78OrbitThe path an object takes as it travels around another object.
79MoonA natural satellite that orbits around planets.
80Lunar CycleThe different appearances of the moon throughout the month which are also known as the phases of the moon.
81Tree Rings Variable width of rings produced by seasonal growth. The number of rings observed corresponds to the age of the tree.
82Sedimentary Rock Layers Helps scientists to figure out what happened in the past. The top layer is the youngest. The bottom layer is the oldest.YOUNGESTOLDEST
83Habitat The environment where an organism lives. Polar bears in their habitat.
84EcosystemAll the living and nonliving things that interact with each other in an environment.