Sunday, June 15, 2014

Water Cycle




Take a good long look at the water on the table. Now, can you guess how old it is? The water in this glass may have fallen from the sky as rain just last week, but the water itself has been around pretty much as long as the Earth has!

Today, we are going to learn about the Water Cycle! (Turn on PP)

The Earth has a limited amount of water. That water keeps going around and around and around and around in what we call the "Water Cycle."'

The Water Cycle is made up of four stages:
1. Evaporation
2. Condensation
3. Precipitation
4. Collection
(Have students repeat stages one by one focusing on pronunciation)

Evaporation is when the sun heats up water in rivers or lakes or the ocean and turns it into vapor or steam. The water vapor or steam leaves the river, lake or ocean and goes into the air. 

Water vapor in the air gets cold and changes back into liquid, forming clouds. This is called condensation.

Precipitation occurs when so much water has condensed that the air cannot hold it anymore. The clouds get heavy and water falls back to the earth in the form of rain, hail, sleet or snow. 

When water falls back to earth as precipitation, it may fall back in the oceans, lakes or rivers or it may end up on land. When the water ends up on land, it will either soak into the Earth and become part of the "ground water" that plants and animals use to drink or it may run over the soil and collect in the oceans, lakes or rivers. We call this collection, and it is where the water cycle starts all over again. 

Next, we are going to watch a one- minute video clip that is going to walk us through the four stages of the Water Cycle. 

Now, I want us to label a poster of the Water Cycle. 

The four stages of the water cycle are evaporation, condensation, precipitation and collection so this is our word bank or the words we get to choose from. 

When the sun heats up water in rivers, lakes or oceans, some of the water turns into vapor or steam and goes into the air. What is this stage called? Is it evaporation, condensation, precipitation or collection? It is evaporation. 

When water vapor in the air gets cold and changes back into liquid, forming clouds it is called? Is is condensation, precipitation or collection?

When so much water has condensed that the air cannot hold it anymore, the clouds get heavy and water falls back to the earth in the form of rain, hail, sleet or snow. This stage of the water cycle is called? It starts with a p.

And the final stage of the Water Cycle, when water falls back in the oceans, lakes, rivers, or may end up on land is called? That's right, collection. Great job! Labeling the Water Cycle was not an easy task, but you did it!




Alright 2nd graders, I want to teach you a song! This song is going to help you remember the stages of the Water Cycle. This is going to be so much fun and I am super excited to be able to sing about the Water Cycle with you this afternoon. Let's all stand up and form a circle. Make sure you have room and are not in your friend's personal space.

"The Water Cycle Song"
(Sung to the tune of She'll be Coming Around the Mountain)

Water travels in a cycle, yes it does
(Use pointer finger to make a big circle in the air)
Water travels in a cycle, yes it does
(Repeat finger circle)
It goes up as evaporation
(Move hands up to the sky)
Forms clouds as condensation
(Make a cloud overhead with arms)
Then comes down as precipitation, yes it does!
(Sprinkle with fingers while bringing arms down in front of you) 

**I was observed during the second half of this lesson. My professor wrote: 
"Water Cycle- 
Students were watching a short video clip to reinfroce their learning from earlier. Great discussion post video... Very engaging and respectful. Good check for understanding. Fun review- song with actions- students loved it! Thorough, well- developed lesson plan! Nice job!!"

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