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Objectives: S.W.B.A.T. Discuss and importance of the sun and general properties of the sun Define distance to the sun Understand the composition of the sun Have an idea of how large the sun is compared to Earth and relation in our solar system

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Page 1: SUN AND SEASONSmrgoodyearearthscience.weebly.com/uploads/1/2/5/9/12594245/sun… · (center of the solar system) holds all planets in orbit by its gravity provides almost all energy

Objectives: S.W.B.A.T.

Discuss and importance of the sun and

general properties of the sun

Define distance to the sun

Understand the composition of the sun

Have an idea of how large the sun is

compared to Earth and relation in our solar

system

Page 2: SUN AND SEASONSmrgoodyearearthscience.weebly.com/uploads/1/2/5/9/12594245/sun… · (center of the solar system) holds all planets in orbit by its gravity provides almost all energy

Activities:

Warm-up

Finish climate map

Notes/discussion on properties of the sun

Sunspot graph

work on any missing work (work on

notebook to be ready to turn in)

Page 3: SUN AND SEASONSmrgoodyearearthscience.weebly.com/uploads/1/2/5/9/12594245/sun… · (center of the solar system) holds all planets in orbit by its gravity provides almost all energy

Sun and Season

Chapter 29 and 26(sec. 2)

Page 4: SUN AND SEASONSmrgoodyearearthscience.weebly.com/uploads/1/2/5/9/12594245/sun… · (center of the solar system) holds all planets in orbit by its gravity provides almost all energy

The Sun

- our average middle-age yellow star contains

more than 99% of all the matter in the solar

system. (center of the solar system)

Page 5: SUN AND SEASONSmrgoodyearearthscience.weebly.com/uploads/1/2/5/9/12594245/sun… · (center of the solar system) holds all planets in orbit by its gravity provides almost all energy

holds all planets in orbit by its gravity

provides almost all energy found on

Earth

made of gas 70% hydrogen 29%

helium 1% other gases

Page 6: SUN AND SEASONSmrgoodyearearthscience.weebly.com/uploads/1/2/5/9/12594245/sun… · (center of the solar system) holds all planets in orbit by its gravity provides almost all energy

Distance from Earth = 93 million miles or

150 million kilometers.

The distance from Earth to the sun is called

an Astronomical Unit – (A.U.)

it takes 8 minutes for light to travel this

distance.

Page 7: SUN AND SEASONSmrgoodyearearthscience.weebly.com/uploads/1/2/5/9/12594245/sun… · (center of the solar system) holds all planets in orbit by its gravity provides almost all energy

Diameter of the sun is 110 times the

diameter of the Earth.

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http://www.youtube.com/watch?v=iJiZkcqf14g

Page 9: SUN AND SEASONSmrgoodyearearthscience.weebly.com/uploads/1/2/5/9/12594245/sun… · (center of the solar system) holds all planets in orbit by its gravity provides almost all energy

Mass is 333,000 times greater than

Earth.

Density = ¼ that of Earth – reason why sun

is less dense than the Earth is because it is a

ball of gas

Page 11: SUN AND SEASONSmrgoodyearearthscience.weebly.com/uploads/1/2/5/9/12594245/sun… · (center of the solar system) holds all planets in orbit by its gravity provides almost all energy

I have secrets

You may not know

about me !