earth moon solid liquid orbit gas planets environment sun mass weathering sponge volcanos water gravity solar system atoms erosion heredity molecules deposition tides wind cycles energy solar landforms volume rotation spring molecule evaporation water cycle oxygen summer food humus silt minerals winter soil sand fall clay carbon dioxide motion weight light force natural resources coal core ml phases needs new moon habitat adaptations states of matter decomposers newton herbivore hydro electric cubic centimetre plates measurement biomes satellite particles nuclear inertia climate atom carbon cycle earthquake drainage venus acceleration cc meter space matter balance omnivore plate movement fossils carnivore crust magnetism oil variables night instinct learned behavior reflected reflection source cm photosphere chromosphere molds trace casts natural gas particle movement mm tropical weather polar condensation metric units of measurement english newtons laws of motion insulation conduction pvc angle plants carbon fossil fuel nitrogen gram kilogram length experiment scientific method steps of scientific method elementary science ed electric charge physical science nitrogen cycle dat transform boundary convergent divergent mountains plate tectonics glaciers moraines tldes beaches shelter protection extinct mixtures physical properties solutions solubility planet gravitation student classroom laboratory equipment mares subduction motor friction mechanical chemical sound generation scale. wants survival talons woodpecker webbed bird feet clam air mass convection mountain lifting mantle inner outer dependent variable independent variable control variable order of planets hydrogen methane. oxygen air warm and cold blooded animals thermoregulation temperature wax surface use of chemicals/poisons protect predators camouflage behavior body structure dependent full moon adapting to cold adaptions migrations hibernation savanna plant adaptations prairie wane pitch soundwave horizons porosity fungi organic topsoil frequency seedling embryo. seed root flower stem life-cycle coniferous jupiter uranus neptune mars rotate mercury lab goggles safety ratios decimals odds fractions probability elementary review groups deciduous coniferous. plant needs beaks photosynthesis displacement day-night genes basalt oceanic crust continental crust magma granite animal adaptions universe pluto science tectonic movement non renewable renewable geothermal biomass landslides ash lava tephra magma landform sediment oyster casts ammonite cretaceous gas molecules seasons star size layers earthquakes etc fangs molars teeth rock dirt dust cloud stars galaxies nuclear fusion scallop
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