Vocabulary
freshwater, agriculture, industry, everyday life, organisms, water sewage, reduce, reuse, recycle, wind power, wind turbines, water treatment plant, landfill, thermal power plant, pollution, fossil fuel, fracking , hydroelectric, deforestation, global warming, desalination, brackish water, conserve, natural resource, agriculture, industry, pollution, pollutant, fertile land, crop, harvest, replenish, extinct, reuse, recycle, reduce, emissions, runoff, smokestack scrubber, overfishing, sustainable, unsustainable, rotation, nutrient, water treatment, regulation, constellations, sun, moon, gibbous moon, half moon, quarter moon, new moon, full moon, phases, axis, rotation, Earth, Northern Hemisphere, Southern Hemisphere, constellations, solar system, rotation, axis (23.5 degrees), orbit, new moon, waxing crescent, first quarter, waning gibbous, crescent, waxing gibbous, last quarter, full moon, waning crescent, wind power, wind turbines, water treatment plant, landfill, thermal power plant, pollution, fossil fuel, fracking , hydroelectric, deforestation, global warming, desalination, brackish water, conserve, natural resource, agriculture, industry, pollution, pollutant, fertile land, crop, harvest, replenish, extinct, reuse, recycle, reduce, emissions, runoff, smokestack scrubber, overfishing, sustainable, unsustainable, rotation, nutrient, water treatment, regulation, constellations, sun, moon, gibbous moon, half moon, quarter moon, new moon, full moon, phases, axis, rotation, Earth, Northern Hemisphere, Southern Hemisphere, constellations, solar system, rotation, axis (23.5 degrees), orbit, new moon, waxing crescent, first quarter, waning gibbous, crescent, waxing gibbous, last quarter, full moon, waning crescent, conserve, natural resource, agriculture, industry, pollution, pollutant, fertile land, crop, harvest, replenish, extinct, reuse, recycle, reduce, emissions, runoff, smokestack scrubber, overfishing, sustainable, unsustainable, rotation, nutrient, water treatment, regulation, constellations, sun, moon, gibbous moon, half moon, quarter moon, new moon, full moon, phases, axis, rotation, Earth, Northern Hemisphere, Southern Hemisphere, constellations, solar system, rotation, axis (23.5 degrees), orbit, new moon, waxing crescent, first quarter, waning gibbous, crescent, waxing gibbous, last quarter, full moon, waning crescent, constellations, sun, moon, gibbous moon, half moon, quarter moon, new moon, full moon, phases, axis, rotation, Earth, Northern Hemisphere, Southern Hemisphere, constellations, solar system, rotation, axis (23.5 degrees), orbit, new moon, waxing crescent, first quarter, waning gibbous, crescent, waxing gibbous, last quarter, full moon, waning crescent, Northern Hemisphere, Southern Hemisphere, constellations, solar system, rotation, axis (23.5 degrees), orbit, new moon, waxing crescent, first quarter, waning gibbous, crescent, waxing gibbous, last quarter, full moon, waning crescent, , force, motion, push, pull, gravity, equal, opposite, speed, direction, rest, net force, force, motion, static, gravity, net force, friction, gravitational pull, Gravity, force, direction, strength, contact force, non-contact force, orbit, sphere