You might be can that me explain. Grandpa said all the asking yourself, “How be?” Let water that has been on Earth since the planet existed has been traveling around and around on an incredible journey called the continuous movement of water water cycle – into the air and ground, onto and over land, and back. A cycle is a process that “that repeats itself”. Water is a special substance. It is one of the few materials on Earth that exists naturally as a solid, liquid, or gas. Water can be in a solid form such as ice or snow. It can be in liquid form so we can drink it or use it for other reasons. It can also be in the form of a gas in the air where we can't even see it. This is called water vapor liquid in the air in – the form of a gas. But conditions need to be just right for water to change from one form to another. These changes are caused by changes in heat energy. When it is really cold, water becomes a solid. When it is cool or warm, water becomes a liquid. When it is hot, water becomes a gas. These energy changes are measured by changes in the temperature a measurement of how hot or cold something is. You have probably – experienced these temperature changes when you were playing outside. All of these forms of water are considered part of the water cycle. The sun is the energy source for these changes. Without the sun, the water cycle couldn't work. Now let's see how the water cycle works. During the water cycle, we can find water in oceans, lakes, streams, snowcapped mountains, glaciers, and groundwater. Water from these locations enter the water cycle through evaporation the change of a substance from a liquid to a gas (vapor). This – makes water vapor. Activities like watering our lawns on sunny days and splashing water at the swimming pool also add water vapor to the air. Can you think of other water activities you do in the summer where water evaporates?
You might be asking yourself, “How can that be?” Let me explain. Grandpa said all the water that has been on Earth since the planet existed has been traveling around and around on an incredible journey called the water cycle – continuous movement of water into the air and ground, onto and over land, and back. A cycle is a process that “that repeats itself”. Water is a special substance. It is one of the few materials on Earth that exists naturally as a solid, liquid, or gas. Water can be in a solid form such as ice or snow. It can be in liquid form so we can drink it or use it for other reasons. It can also be in the form of a gas in the air where we can't even see it. This is called water vapor – liquid in the air in the form of a gas. But conditions need to be just right for water to change from one form to another. These changes are caused by changes in heat energy. When it is really cold, water becomes a solid. When it is cool or warm, water becomes a liquid. When it is hot, water becomes a gas. These energy changes are measured by changes in the temperature – a measurement of how hot or cold something is. You have probably experienced these temperature changes when you were playing outside. All of these forms of water are considered part of the water cycle. The sun is the energy source for these changes. Without the sun, the water cycle couldn't work. Now let's see how the water cycle works. During the water cycle, we can find water in oceans, lakes, streams, snowcapped mountains, glaciers, and groundwater. Water from these locations enter the water cycle through evaporation – the change of a substance from a liquid to a gas (vapor). This makes water vapor. Activities like watering our lawns on sunny days and splashing water at the swimming pool also add water vapor to the air. Can you think of other water activities you do in the summer where water evaporates?
How_Do_We_Get_Water_We_Use_Everyday_Text.docx