3. 2. Solid – Ice, snow and frost are examples of water in solid state. Water freezes at 0 degrees Celsius and 32 degrees Ferinheight.
4. 3. Gas or Water Vapor – Gas is really invisible. When water evaporates due to heat, it turns into a gas. Do This – Find your science partner. Using one sheet of paper, write both names and draw 3 columns. Record different ways you see water in the forms of SOLID, LIQUID and GAS We will share in 7 minutes… GO!
5. DO THIS INDIVIDUALLY! Hold your hand in front of your mouth about 1 inch away from you. Breathe out slowly about 8 times on to the palm of your hand. Do not blow. When you are done, feel your palm. What does it feel like? Is it wet or dry? Your palm should have felt wet to you. That moist feeling was water vapor. Remember that we breathe out water vapor. If you have a dog or a cat, you can feel the water vapor that they breathe out. Try this with a mirror. See the water droplets form on the mirror. The water vapor that you breathed out is now becoming liquid water on the mirror. Why? Record your hypothesis in your Science Journal now. I will pull names to add entries on our class website.
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7. Water vapor may condense to liquid water as it cools. This is what happened to the water vapor from your mouth as it touched the mirror. The mirror was cold and so the water turned back into water droplets. Condense is the opposite of evaporate. Dew is a form of condensed water vapor. You can see dew in the morning on your lawn. Water droplets formed overnite as it became cooler.
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9. Review: 1. Ice melts due to heat and evaporates, turning into _________. 2. When water vapor cools it _________ to liquid water. DISCUSSION TIME! How does this information relate to the water cycle?
![Water can exist in THREE forms : ,[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)