Parts of the Sun

• Drill: How many Earths could we fit inside the sun?

• Objective: SWBAT identify and describe the structures of the sun in order to compare the properties of the sun to the characteristics of the planets.

• HW: Diagrams due Thursday

The Sun is Comprised Of:

• A round collection of Hydrogen and Helium divided into 3 layers.

• A dense atmosphere divided into 3 layers.

Oct. 16th of the Sun

• Drill: Label each part of the sun with the following 3 words: Convection Zone, Core, and Radiation Zone.

Is this the atmosphere or main body of the sun?

Fusion vs. Fission

Other Solar Items

• Solar Flares

• Prominences

A Description of our Sun

• The Sun is comprised of three layers:– A dense center that

produces heat/energy through nuclear fusion

– A middle layer that carries the heat to the exterior portion of sun

– An exterior that creates currents that exchange heat with the atmosphere. As the heat is transferred to the atmosphere cooler air is carried back to the middle to heat up again.

• The atmosphere is comprised of three layers:– The area closest to the sun

produces light waves that we see

– The middle area that serves as a transition zone

– The exterior layer which is the largest layer of the sun’s atmosphere where charged particles continually escape.

Definitions• Corona: Exterior layer of the sun. The

largest area of the atmosphere extending from the chromosphere outward millions of kilometers into space. Visible portion during a solar eclipse.

• Core: Dense center of the sun where nuclear fusion occurs.

• Chromosphere: Transition zone of the atmosphere between the photosphere and corona.

Definitions• Convection Zone: Area beyond the

radiation zone where materials are heated, rise to the top, cool, then sink back to the bottom of the zone.

• Photosphere: Lowest part of the atmosphere and the layer from which light is given off.

• Radiation Zone: Area of the sun that surrounds the core. Transfers energy from the core to the convection zone.

Drill: Compare and ContrastThe Sun The Planets

Oct. 16th Parts of Sun Review

• Drill: What 4 (four) star characteristics can determine from a Hertzsprung Russell diagram?

• Objective: SWBAT identify key parts of the sun in order to create a model of the sun’s layers.

• HW: Study

Dec. 10th Review

• Drill: Will our sun become a black hole? Why or Why not?

• Objective: SWBAT identify key concepts of stars in order to prepare for Tuesday’s Test!

• HW: Study

Dec. 13th Review

• Drill: Draw a diagram of the sun. Include the three parts of the body and three parts of the atmosphere.

• Objective: SWBAT identify key concepts of stars in order to prepare for Tuesday’s Test!

• HW: Study