9/17/1315th Day of School

Learning Goals: I will be able to explain the properties of Earth’s atmosphere using examples. I will be able to describe dust as a part of the composition of Earth’s atmosphere.

Due Today: Earth’s atmosphere PowerPoint/signed folder

Evening Assignment: Review for Test

Do Now

On the slip of paper, write your name and the four properties of Earth’s atmosphere. Include an example of each.

McDougall textbook, p. A11

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)

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)

Group Activity

Properties of Earth’s AtmosphereEach 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

Does Air Have Substance?

Demonstration: 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:

4. What took place?

5. Why?

3. How does this apply to our weather?

http://www.thenakedscientists.com/HTML/content/kitchenscience/exp/losing-air/

 

Evening Assignment

Turn in Earth’s Atmosphere PowerPoint

Get folder signed if you have not done so.

Review for Thursday’s test.