|Earth and Space Science||Structure of the Earth System 6I3.00||Unifying Concepts of Science||Change 2.5 b|
Sponsored by the National Science Foundation
CONTENT STANDARD: Earth and Space Science
CONTENT TOPIC: Structure of the Earth
CONCEPT: The atmosphere has different properties at different elevations.
CONTENT OBJECTIVE: 6I3.00 To understand, at different elevations, how the Earth's atmosphere was formed and describe the layers of the atmosphere
INSTRUCTIONAL OBJECTIVES: The learner will:
TN COMPONENT OF SCIENCE: Unifying Concepts of Science
BENCHMARK: Some changes in the earth's surface are abrupt while other changes happen very slowly.
Plants growth on the earth changed the atmosphere, by using carbon dioxide and releasing oxygen. Most of the atmosphere today is nitrogen, and about one fifth of the atmosphere is oxygen.
The hydrosphere is probably formed from water vapor from the early volcanoes. The hydrosphere includes oceans, lakes, river, underground water, glaciers, clouds, and even water vapor in the air.
The Earth's atmosphere is made up of four layers and a boundary section. The layers are written from closest to the earth to the farthest.
1. Troposphere - This layer extends to a height of 8 km at the poles and 18 km at the equator.
2. Tropopause - This is a boundary that separates the first two layers.
3. Stratosphere - This layer extends to a height of 50 km.
4. Mesophere - This layer extends from 50 to 85 km above the Earth's surface.
5. Thermosphere - This layer extends from 85 km above the earth's surface upward into space.
1. Half fill the fish bowl with water.
2. Crumble a paper towel and place it in the glass jar so that it will not fall out when the jar in inverted.
3. Make an educated guess about what will happen when the inverted jar is submerged. Record your guess.
4. Keeping the inverted jar vertical, push it to the bottom of the bowl. Remove jar. Record your observations in your table.
5. Use the scissors to cut a circle from the coffee can lid larger than the diameter of the glass jar.
6. Half fill the jar with water. Dip the plastic circle into some water. Place it over the mouth of the jar.
7. Record your educated guess about what will happen when the jar is inverted.
8. Hold the jar with one hand. Place the fingers of your other hand over the plastic circle. Invert the jar over the fish bowl. Carefully remove your fingers from the plastic circle. Record your observation.
9. Add 1/4 cup of water to the can.
10. Place the can on the hot plate for several minutes until the water boils.
11. Hypothesis what will happen when the can is inverted in the fish bowl. Record your educated guess.
12. With the thermal mitt, carefully remove the can from the hot plate. As you turn it upside down over the fish bowl, quickly place the rim and hole just below the level of water. Record your observations.
2. What did you observe when you removed your hand from the plastic lid? Explain.
3. What abrupt action took place to release gases?
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