1) Where is there water?
water cycle, phases, multiple forms
ACT: Stamp for Earth's water

Engage/Elicit:

Discovery Question: Look at picture. Where is there water?

ART:With mountain, lake, clouds, rivers, glaciers, ocean by Flickr user Abu http://flickr.com/photos/abulafia/16537606/ Attribution-NonCommercial-ShareAlike 2.0 http://creativecommons.org/licenses/by-nc-sa/2.0/ Cannot resolve external resource into attachment.

Explore:

If you look all around you, you'll notice that water comes in many shapes and sizes.

Sometimes water is a solid. Here are some examples of solids.

ART: table, book, rock

What is water like when it is a solid?

L5: Write your response in the box below. L4: What is made of water but hard as a rock? L3: .... is made of water but is as hard as a rock. L2: (Water vapor, *ice, liquid water) is made of water but is as hard as a rock. L1: Ice is solid water. How can you prove that ice is made of water?

Write "solid" on the picture below where you see solid water.

Background image in DRAW TOOL. Cannot resolve external resource into attachment.

Sometimes water is a liquid, and can change shape easily. Here are some examples of liquids:
Water
by Flickr user Daybis http://flickr.com/photo_zoom.gne?id=57055108&size=m
Attribution-NonCommercial 2.0 http://creativecommons.org/licenses/by-nc/2.0/
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silly putty
by Flickr user ericskiff http://flickr.com/photo_zoom.gne?id=183552114&size=m
Attribution-ShareAlike 2.0
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milk
by Flickr user Dan H http://flickr.com/photos/dan_h/206084861/
some rights reserved: No derivative works
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What is water like when it is a liquid?

L5: Write your response in the box below. L4: Describe liquid water. L3: An example of liquid water is found in a... L2: Liquid water can be found in (*a glass of water, ice, water vapor) L1: A glass of water is an example of liquid water.

Background image in DRAW TOOL with previous notation. Cannot resolve external resource into attachment.

Write "liquid" in a new color on the picture below where you see liquid water.

A solid is: matter with a definite volume and shape. Marbles, pasta and grains of sand are solids, so their shapes and volumes do not change.
A liquid is matter that has definite volume, but no definite shape. At room temperature, water is a liquid; its shape can change but its volume does not.
Most materials can change forms. They can be solid at one temperature, but liquid at another temperature.
At room temperature, water is liquid, but when water is in its solid form, it is ice.

• If you wanted to change water from its liquid form to its solid, ice form, what could you do?

  L5: Write your response in the box below. L4: How could you turn liquid water into ice? L3: If I wanted to turn liquid water into ice I would... so it freezes. L2: I could turn liquid water into ice by (boiling it, *putting it in the freezer). L1: I could turn liquid water into ice by putting it in the freezer. Explain this below.

  In this project, we are studying water on the Earth.

  STAMP: ice

  The stamp shown here represents all the liquid water on the Earth. Compared to the amount of liquid water, how much water do you think is solid on the Earth, in the form of ice? Draw a shape that compares the size of the liquid water to the size of the ice.
  The earth has ice in glaciers and permanent snow, but it makes less than 2% of the Earth's water. More than 96% of the Earth's water is in the oceans.

  PIC: Earth with oceans and ice caps

  How does the amount of ice compare to your predictions?

  L5: Write your response in the box below. L4: Was the amount of ice on the Earth more than or less than you predicted? L3: The amount of ice on the Earth was .... than I predicted. L2: The amount of ice on the Earth was (more than, less than) than I predicted. L1: The amount of ice on the Earth was (more than, less than) than I predicted.

Some materials change shape and volume. An example of this is air. Air is a gas.
A gas is matter that has no definite shape or volume. For example, if you take a mylar ballon (the shiny kind) outside on a cold day, it looks deflated. The gas inside the balloon changes shape and volume.

VIDEO http://www.youtube.com/watch?v=rPbE2KSPxuU http://udl.concord.org/share/clouds/MVI_0866.mpg Author: Freddie Lindén

• When water is a gas, it is called water vapor or steam. What do you think water is like when it's a gas?
  (Invisible, like air, changes shape and volume)

  L5: Write your response in the box below. L4: What does water vapor (gas) look like? Dos it change shape or volume? L3: As a gas, water looks.... It can change ... and .... L2: As a gas, water looks (like liquid water, invisible, cloudy, misty) L1: As a gas, water is invisible. Explain below.

Background image in DRAW TOOL with previous notation. Cannot resolve external resource into attachment.

Write "gas" on the picture below where you see water vapor.

Explain:

In the water cycle, water changes from a liquid to a gas and back to a liquid or a solid. This is how water on the earth is recyled, and it is how we get rain and snow.

ART: Need this water cycle labelling needs to be researched Cannot resolve external resource into attachment.

• Water vapor, the form of water that is a gas, is released by plants (transpiration) and evaporates from lakes, the ocean and the surface of the Earth.
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  ART

• When conditions are right, water turns back into a liquid in the form of tiny droplets.
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• As the tiny droplets form, they start to clump together and increase in size. When the droplets are big enough, they fall to the ground as precipitation.
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Look at the water cycle below. Can you label the solid, liquid, and gas states of water?

ART: Water cycle