EQ's
How much of Earth is covered by water?
Why do all people not have access to freshwater?
Why do all people not have access to freshwater?
Vocabulary
Water Hemisphere
Biosphere
Salt Water
Freshwater
Hydrologic Cycle
Evaporates
Precipitation
Groundwater
Aquifer
Scarcity
Biosphere
Salt Water
Freshwater
Hydrologic Cycle
Evaporates
Precipitation
Groundwater
Aquifer
Scarcity
Handouts
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Slideshow
Lesson 6 Water
We will begin with a demonstration using a 2-liter soda bottle filled with water. I will tell the students that the water in this soda bottle represents all the water that is on earth, about 60% of the earth is covered by water. Then, I will ask them 'How much of this water do you believe is available for human drinking water?' Students will then give their best estimates and I will begin to dump out water, 97% of all the water is first removed as it represents the salt water in the ocean. Next, I will dump out 2% of the remaining water as it represents freshwater that is unobtainable in glaciers. Finally, I will show the students the remaining 1% of the water in the bottle. This is it. 1% is all the available freshwater that humans can use as drinking water. This remaining water can be found in rivers, lakes, and aquifers. This remaining water is also the water we use to water lawns, shower, give to pets, and wash cars. 'Is water limitless in supply?' 'Why is it important to conserve water?' 'What do you believe happens when communities experience droughts?' What happened in our community the past two years when we experienced droughts (government mandates, land/plant life changes)?'
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Next, students will complete the vocabulary graphic organizer (IR 14) while reading IR 15. Students will seek out the answer to the EQ, 'Why do all people not have access to clean drinking water?' These images may help students: