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9/18/13 16th Day of School Learning Goals: I will be able to describe the structure of Earth’s atmosphere. I will be able to describe dust as a part of.

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Presentation on theme: "9/18/13 16th Day of School Learning Goals: I will be able to describe the structure of Earth’s atmosphere. I will be able to describe dust as a part of."— Presentation transcript:

1 9/18/13 16th Day of School Learning Goals: I will be able to describe the structure of Earth’s atmosphere. I will be able to describe dust as a part of the composition of Earth’s atmosphere and explain the properties. Due Today: Earth’s atmosphere PowerPoint/signed folder Evening Assignment: Study for Test

2 Do Now In your science notebook copy and answer the following: Define the term particulates. Besides particulates what gases make up the atmosphere? What is the percentage of each one? freshairducts.net

3 Structure of the Atmosphere Thermosphere MesosphereStratosphereTroposphere Name Altitude Temperature Heat Source Events Complete the chart with essential facts about the Temperature Layers

4 Background Research 1) In your composition notebooks, make the table below. 2) Then use your computer to research was is dust made of. Complete the left side of the table below. What could be in dust (research) What is actually in dust (experiment)

5 Experiment 3) Make Dust traps by cutting a 1 x 1 cm square in a notecard, then cover the square hole with scotch tape. Place card sticky side down to trap dust. 4) View card with magnifying glass and record what you see on the right side of the table. What could be in dust (research) What is actually in dust (experiment)

6 Group Activity Properties of Earth’s Atmosphere Each group should brainstorm some examples of the following key properties of Earth’s atmosphere. Pick your best TWO examples for each and make a poster showing and explaining each example. Divide the paper into fourths, one for each of Earth’s atmosphere properties below: Air has substance (meaning it has MASS and VOLUME) Air temperature decreases as altitude increases Air pressure & air density decrease as altitude increases Atmosphere protects & supports life

7 Does Air Have Substance? Extended Activity: What happens when air is lost? Procedure: 1.Float a candle in a shallow bowl of water. 2.Light the candle and leave it to start burning well. 3.Place a glass jar over the candle and see what happens. Essential questions: 1.What took place? 2.Why? 3.How does this apply to our weather? http://www.thenakedscientists.com/HTML/content/kitchenscien ce/exp/losing-air/

8 Exit Ticket On the slip of paper write your name and answer the following question: Which property do scientists use to define the four layers of Earth’s atmosphere? vtaide.com

9 Evening Assignment Study for tomorrow’s test. Earth’s Atmosphere Composition Properties Structures

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