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# Developed by: Jill Swanger for 2nd graders - PowerPoint PPT Presentation

STARS. Sizes, Brightness, Patterns. Developed by: Jill Swanger for 2 nd graders. Table of Contents. (Star Wars theme song playing from CD in background) Title Slide Georgia Performance Standard Definition of a Star Elements of a Star (Pie Chart) Physical Attributes (Flow Chart)

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Presentation Transcript

Sizes, Brightness, Patterns

Developed by: Jill Swanger

(Star Wars theme song playing from CD in background)

• Title Slide

• Georgia Performance Standard

• Definition of a Star

• Elements of a Star (Pie Chart)

• Physical Attributes (Flow Chart)

• Brightness of a Star (Organization Table)

• Sizes of a Star

• Life Cycle of a Star

• Patterns of a Star (Bar Graph)

• Video Clip of the Sun

• Conclusion

• Glossary

• References

Earth Science

S2E1: Students will understand that stars have different sizes, brightness, and patterns.

a. Describe the physical attributes of stars – sizes, brightness, and patterns.

www.georgiastandards.org

A gaseous sphere found in outer space. A star is held together by its own gravitation. It emits light through its source of nuclear energy.

Physical Attributes of Stars

Hhhmmm!

I wonder which 2 factors?

Take a look at the table on the following slide. Determine what 2 main factors influence the brightness of a star (as seen from Earth)!

What are the 2 main factors?

• Distance from the Earth

• Luminosity (compared to the Sun)

Are all stars the same size?

• What do you notice about all of these stars below?

Tell me two types of sizes stars can have.

Let’s put them on our physical attributes chart!

Sun-like

Stars

(1.5 X mass

of sun)

Red

Giant

Stellar

Nursery

Planetary

Nebula

Black

Dwarf

White

Dwarf

• What patterns can stars create?

• Stars can form patterns in the sky known as constellations.

• Who can tell me the name of a constellation?

• This constellation is Orion (the hunter).

• What constellations are in the sky right now?

KidsAstronomy.com - Earth

• Did you know that the sun is a large star?

• Check out this video on the sun!

http://www.solarviews.com/raw/sun/sunb.mov

• What are the 3 physical attributes of a star?

• Tonight, look at the sky and write down what you see!

• attributes: characteristics

• luminous: brightness

• Arkansas/Oklahoma Astronomical Society. (2005). Retrieved July 23, 2005, from http://www.aoas.org/albums/astrophotos/gentry_night_sky_2.jpg

• Constellations and Their Stars. (n.d.). Retrieved July 19, 2005, from http://www.astro.wisc.edu/~dolan/constellations/extra/constellations.html

• Enchanted Learning. (1999-2005). Retrieved July 21, 2005, from http://www.enchantedlearning.com/subjects/astronomy/stars/lifecycle/

• Georgia Department of Education. (2005). Retrieved July 18, 2005, from www.georgiaperformancestandards.org

• Imaginova Corp. (2005). Retrieved July 20, 2005, from http://www.space.com/scienceastronomy/brightest_stars_030715-2.html

• Kid Astronomy. (1998-2004). Retrieved July 20, 2005, from http://www.kidsastronomy.com/astroskymap/constellations.htm

• NASA Goddard Space Flight Center. (n.d.). Retrieved July 20, 2005. from http://imagine.gsfc.nasa.gov/docs/ask_astro/answers/961112a.html

• Nikomi (2005). Retrieved July 21, 2005, from http://www.nikomi.net/english/astronomy/starsizes.htm

• Solar Views. (1996-2003). Retrieved July 21, 2005,. From http://www.solarviews.com/raw/sun/sunb.mov

• Yahoo, Inc. (2005). Retrieved July 18, 2005, from http://yahooligans.yahoo.com/reference/encyclopedia/entry?id=44982