what do you think about the picture above? right.....it is a picture of water cycle. this time your task is telling how the rain can fall to the earth.
2 comments:
Anonymous
said...
The Water Cycle also known as the hydrologic cycle is the journey water takes as it circulates from the land to the sky and back again.
The Sun's heat provides energy to evaporate water from the Earth's surface (oceans, lakes, etc.). Plants also lose water to the air (this is called transpiration). The water vapor eventually condenses, forming tiny droplets in clouds. When the clouds meet cool air over land, precipitation (rain, sleet, or snow) is triggered, and water returns to the land (or sea). Some of the precipitation soaks into the ground. Some of the underground water is trapped between rock or clay layers; this is called groundwater. But most of the water flows downhill as runoff (above ground or underground), eventually returning to the seas as slightly salty water.
The water cycle is the way the Earth uses and recycles water. It's controlled by the sun, which produces energy in the form of heat. This heat energy causes the water in the world's oceans, lakes, and even puddles in your backyard to warm and evaporate.
When water is heated, it changes from a liquid to a gas. This gas is called water vapor, and the process is called evaporation. When plants give off water vapor, it's called transpiration. When water evaporates, it rises into the cooler air, collects, and forms clouds. There, the water vapor molecules cool down and change back into liquid water. This is called condensation.
As more and more water vapor cools into the clouds, the water droplets that form the clouds become larger and larger. These droplets get so big that the swirling winds in the atmosphere can no longer hold them up. The droplets fall from the sky.
Precipitation is the term for the falling, condensed water molecules, which come down as rain, snow, sleet, or hail--depending on conditions in the atmosphere. ..
When water falls to the Earth, the water seeps into the soil because of the force of gravity. This seeping is called infiltration. Or the water flows over the land and into bodies of water, such as rivers and lakes. Most of this precipitation falls in either coastal areas or in elevations high up in the mountains. Some of the water that falls in high elevations becomes run-off water, which is water that runs over the ground to lower elevations and forms rivers, lakes, and valleys. Sometimes this water collects nutrients from the soil it runs over, making the valley good for plant growth.
Review: The water cycle is a process that is constantly recycling the Earth's supply of water. This is important because humans, animals, and plants all need water to survive. To review, let's go through the water cycle step by step: a. First the water from the Earth's surface evaporates. Then it rises into the atmosphere, is cooled, condenses, and forms clouds. b. When enough water collects in the clouds, they release moisture in the form of rain, sleet, snow, or hail. And once again, the water returns to the Earth. c. The water that's fallen to the Earth runs off into lakes, rivers, streams, and any other body of water. This water will eventually seep through layers of the Earth's surface where impurities filter out. d. Then, the water is heated by the sun and evaporates, and the whole cycle begins again.
Now that you've learned about the water cycle, discover how to make your own miniature water cycle at home. Then you can use this mini water cycle to conduct your own investigations!
2 comments:
The Water Cycle also known as the hydrologic cycle is the journey water takes as it circulates from the land to the sky and back again.
The Sun's heat provides energy to evaporate water from the Earth's surface (oceans, lakes, etc.). Plants also lose water to the air (this is called transpiration). The water vapor eventually condenses, forming tiny droplets in clouds. When the clouds meet cool air over land, precipitation (rain, sleet, or snow) is triggered, and water returns to the land (or sea). Some of the precipitation soaks into the ground. Some of the underground water is trapped between rock or clay layers; this is called groundwater. But most of the water flows downhill as runoff (above ground or underground), eventually returning to the seas as slightly salty water.
The water cycle is the way the Earth uses and recycles water. It's controlled by the sun, which produces energy in the form of heat. This heat energy causes the water in the world's oceans, lakes, and even puddles in your backyard to warm and evaporate.
When water is heated, it changes from a liquid to a gas. This gas is called water vapor, and the process is called evaporation. When plants give off water vapor, it's called transpiration. When water evaporates, it rises into the cooler air, collects, and forms clouds. There, the water vapor molecules cool down and change back into liquid water. This is called condensation.
As more and more water vapor cools into the clouds, the water droplets that form the clouds become larger and larger. These droplets get so big that the swirling winds in the atmosphere can no longer hold them up. The droplets fall from the sky.
Precipitation is the term for the falling, condensed water molecules, which come down as rain, snow, sleet, or hail--depending on conditions in the atmosphere.
..
When water falls to the Earth, the water seeps into the soil because of the force of gravity. This seeping is called infiltration. Or the water flows over the land and into bodies of water, such as rivers and lakes. Most of this precipitation falls in either coastal areas or in elevations high up in the mountains. Some of the water that falls in high elevations becomes run-off water, which is water that runs over the ground to lower elevations and forms rivers, lakes, and valleys. Sometimes this water collects nutrients from the soil it runs over, making the valley good for plant growth.
Review: The water cycle is a process that is constantly recycling the Earth's supply of water. This is important because humans, animals, and plants all need water to survive. To review, let's go through the water cycle step by step:
a. First the water from the Earth's surface evaporates. Then it rises into the atmosphere, is cooled, condenses, and forms clouds.
b. When enough water collects in the clouds, they release moisture in the form of rain, sleet, snow, or hail. And once again, the water returns to the Earth.
c. The water that's fallen to the Earth runs off into lakes, rivers, streams, and any other body of water. This water will eventually seep through layers of the Earth's surface where impurities filter out.
d. Then, the water is heated by the sun and evaporates, and the whole cycle begins again.
Now that you've learned about the water cycle, discover how to make your own miniature water cycle at home. Then you can use this mini water cycle to conduct your own investigations!
Post a Comment