Vocabulary
raining, runoff, water cycle, salty water, freshwater, gravity, gas, solid, liquid evaporation, vapor, precipitation, hydrosphere, water vapor, ground water, glacier, sediment, erosion, deposition, water flow, evaporated, particles, atmosphere, surface, glacier, fresh water, polar ice caps, wetlands, atmosphere, surface, glacier, fresh water, polar ice caps, wetlands, atmosphere, disaster, natural hazard, severe weather, flood, fire, rain, thunder storm, lightning, tornado, volcano, earthquake, tsunami, landslide, evacuation, seismograph, warning system, natural hazard, lightning, thunder storm, lightning rods, high risk, tornado, hurricane, tropical storm, flooding, seismometer, earthquake, seismologist, tsunami, volcanic eruption, tidal wave, natural resources, coal, uranium, nuclear energy, fossil fuels, renewable resources, nonrenewable resources, electricity, radioactive, alternative energy, windmills, solar power, hydroelectricity, geothermal, biofuels, pollution, oil, natural gas, fissile materials, resource, natural resource, renewable resource, non-renewable resource, coal, oil, solar, iron, energy, fossil fuel, fissile materials, pollution