Download
1 / 49
490 likes | 600 Vues
Work you owe me!. Summary of moon’s rotation (Late). Planet Email good copy (November 7). Good copy of place marker (Late). Planet Email Project. Did you imagine you were on the planet or did you just write facts?. For example:. I’m here on Mars. The ground is so
E N D
Work you owe me! Summary of moon’s rotation (Late) Planet Email good copy (November 7) Good copy of place marker (Late)
Planet Email Project Did you imagine you were on the planet or did you just write facts? For example: I’m here on Mars. The ground is so red and I feel so light. I can jump so high! I’m here on Mars. The radius is 3397 km. The period of revolution is 1.70 to Earth.
Here on Jupiter we need special clothes just to fly around. Here on Jupiter the atmosphere is 95% nitrogen with other gases. How is your grammar and spelling?
Did you write three explanations? I wrote “the ground is so red”. I wrote this because Mars’ ground is red because it has a large amount of iron in the dirt. 2. I wrote “I fall into the canyon slowly, like a piece of paper falling”. I wrote this Because Mars gravity is less than Earth’s Because Mars’ mass is only 11% of Earth’s.
The moon is smaller than the sun, so the shadow only covers a small part of Earth.
The part that is directly under that shadow is called the “umbra”
The part that is not directly under that shadow is called the “penumbra”
The moon orbits the Earth about one time a month. Why don’t we have a solar eclipse one time a month too?
Because the moon orbits Earth on a different plane than the sun.
Let’s look one more time. Where will the Earth, Sun and Moon be at that time?
The Moon`s changing phases. 月亮的变化阶段
The way the moon looks to us on Earth is always changing – that is called the phases of the moon.
The moon does not make its own light. Where does the light come from?
As the moon orbits our planet, the sun hits it from different angles.
When the amount of light we can see is increasing, we say the moon is “waxing”
When the amount of light we can see is decreasing, we say the moon is “waning”
Why do we always see the same side of the moon? It rotates at the same rate as the Earth
Summer Solstice The longest day of the year (in the northern hemisphere) The sun is highest in the sky at this time This year: June 20
Winter Solstice The shortest day of the year (in the northern hemisphere) The sun is lowest in the sky at this time This year: December 21
Also: Equinox This is the day that the Earth is not tilted away or toward the sun. The day and night are the same length. This year: March 20, September 23
Solar eclipses The moon goes in front of the sun, so the shadow blocks the light. It does not cover the entire Earth’s surface because the moon is too small.
The moon is smaller than the sun, so the shadow only covers a small part of Earth.
The part that is directly under that shadow is called the “umbra”
The part that is not directly under that shadow is called the “penumbra”
The moon orbits the Earth about one time a month. Why don’t we have a solar eclipse one time a month too?
Because the moon orbits Earth on a different plane than the sun.
Let’s look one more time. Where will the Earth, Sun and Moon be at that time?
When the Earth’s shadow goes on the moon. So the moon is blocked.
Satellites. When I send my friend a QQ message, I am using a satellite.
Most satellites stay in “geosynchronous” orbit. That just means they orbit the Earth as fast as the Earth spins.
Satellites are like big mirrors in space. The bounce back signals from Earth.
How do satellites stay in geosynchronous orbit? They have to stay about 36,000 km from Earth at the equator and move at 13,000 KM/hour.
Satellites are always falling but they will not hit the Earth.Why?
Satellites in geosynchronous orbit will fall to Earth at 5m per second. So, if they travel at 8000 m per second, they will always fall, but never hit Earth.
