1. Sarah Baehren, Becca Mitchell, Macey Fruth, Liz Navarre
The Sun and Earth
Sarah Baehren, Becca Mitchell, Macey Fruth, Liz Navarre

2. The Sun
The Sun is a star and is the largest object in our solar system
109 Earth’s can stretch across the Sun’s surface
About 70% Hydrogen and 28% Helium and 2% combination of other gases
Deep in the Sun the temperature is 27 million degrees

3. Sun Continued…
Corona- Is the outermost layer and can only be seen during solar eclipses
Photosphere- Surface of the sun and only part we can actually see
Convective Zone- Outermost ring of the sun
Radiative Zone- The layer above the core
Core- Center of the sun also the hottest part
Sunspots- Found on the photosphere
Solar Flare- a sunspot group that creates big
explosions from the sun

4. The Earth The Earth is a planet and is the 5th largest planet
3rd planet from the sun in our solar system
78% nitrogen 21% oxygen 0.9% argon and 0.03% carbon and other gases
Record low: -127 degrees F
Record high: 136 degrees F

5. Earth Continued…
Crust- Earth’s hard outer shell and is much thinner than the other layers
Mantle- Is most of the Earth and takes over 2/3 of the Earth’s mass
Outer Core- Made of
liquid magma
Inner Core-Completely
solid

6. Earth and Sun
The usual distance between the Sun and the Earth is 93 million miles
Both are hotter at their core than their surface
They are both nearly spherical and rotate on their axis
Sun is much hotter and bigger than the Earth

7. Rotation
Rotation is the Earth as it spins on its axis and it makes the 24 hour day and night on Earth
It causes different times in countries and continents
Parts of the Earth that are facing the
sun are having day and parts that are
facing away have night
Earth on its axis goes from east to west

8. Revolution
Revolution is the movement of Earth around the Sun in one year and it makes our seasons
The hemisphere that is closer to the sun will have summer and the farther is winter

9. Solstices
Winter Solstice occurs on December 21 and marks the beginning of winter and is the shortest day of the year
Summer Solstice occurs on June 21 and marks the beginning of summer and is the longest day of the year

10. Equinoxes Equinox means that night and day are the same length
Vernal Equinox starts in late March and is the beginning of spring
Autumunal Equinox starts in late September and is the beginning of fall

11. Heliocentric vs. Geocentric
Geocentric- A model when the Earth is in the center of the solar system
Heliocentric- A model when the Sun is in the center of the solar system
Heliocentric is the present day model for the world