Water Wonders

70%

Saltwater and freshwater

3.5%

<p>3%</p> Signup and view all the answers

<p>Groundwater is fresh water that circulates underground and is found beneath the Earth's surface.</p> Signup and view all the answers

<p>3% of the Earth's total water supply is freshwater, and only a small percentage of that is readily available for use.</p> Signup and view all the answers

<p>Salinity refers to the proportion of dissolved salt in a substance like water. Ocean water is salty because the concentration of dissolved salts in the ocean is 3.5% on average.</p> Signup and view all the answers

<p>The three states of water are liquid, solid and gas. Water changes from one state to another when exposed to heat, it evaporates and becomes a gas (water vapor), and when exposed to intense cold, it freezes and changes to a solid state (snow or ice).</p> Signup and view all the answers

<p>Groundwater is fresh water that circulates underground. When it rains, the water penetrates the soil and flows between its particles. It slowly seeps into the depths of the soil and rocks until it reaches a layer that is difficult to penetrate, such as a layer of very compact rock or clay.</p> Signup and view all the answers

<p>An aquifer is the underground level where all the accumulated groundwater is stored. Most country homeowners and small farms dig wells (deep circular cavities) into aquifers to obtain fresh water.</p> Signup and view all the answers

<p>3.5%</p> Signup and view all the answers

<p>3%</p> Signup and view all the answers

<p>liquid, solid, gas; exposure to heat or cold</p> Signup and view all the answers

<p>rivers, streams, lakes, ponds, wetlands</p> Signup and view all the answers

<p>aquifer</p> Signup and view all the answers