PowerPoint Created by Rachel Khodadadi The Water Cycle PowerPoint Created by Rachel Khodadadi
The water cycle is a continuous interchange of moisture between the oceans, soil, ground water, plants, clouds, rivers, lakes glaciers, and humans, which fuels much of our weather.
How much of earth is covered by water? About two thirds of the earth is covered by oceans (69%). Oceans provide nearly 90% of the moisture in our atmosphere. So, what is atmosphere? Atmosphere is the blanket of air (gases) that surrounds our planet, earth. One of these gases is the oxygen (21%)you breathe. Nitrogen is 78%, while other gases in our atmosphere include water vapor, carbon dioxide, and others 1%.
What states does water exist in? Solid, the state in which matter makes a definite. Liquid, the state in which matter moves freely and takes the shape of its container. Gas, water in its gas state is known as water vapor.
How does water travel?
What do you really know about water. Where does it come from What do you really know about water? Where does it come from? What's it good for, besides drinking? Does it do anything special? Did you know that our earth has been using the same water for more than three billion years? The water that you are using today has been recycled. It has been recycling from the oceans to the clouds and back again. The water cycle provides the earth with a continual supply of fresh water.
Water exists in three forms in the water cycle. Evaporation Condensation Precipitation
Are you smarter than a fourth grader? OK, lets see if you can fill in the blanks. We will start with a water cycle quiz:
Number your paper 1-5 and write what each one is.
How did you do? 1 sun, our main source of energy 2 condensation 3 evaporation 4 precipitation 5 the ocean 2/3rd of our water supply
Why Conserve Water? Water is essential to life on earth. We need water to grow food, keep clean, provide power, control fire, and last but not least, we need it to stay alive! If water is constantly being cleaned and recycled through the earth’s water cycle, why do we need to conserve it? The answer is that people use up our planet’s fresh water faster than it can naturally be replenished. To provide enough clean fresh water for people, water is cleaned at drinking water treatment plants before it is used. And after water is used, it is cleaned again at wastewater treatment plants or by a septic system before being put back into the environment.
Why conserve water at Centerville Elementary? Saving water is good for the earth, your family, Centerville, and your community. So, when you go to the restroom turn the water off as soon as you have finished washing your hands. How can you be a responsible, respectful, and resourceful Centerville General? By being responsible when you go to the restroom and quickly turning off the water. Be a leader, remind your classmates not to play in the water either.