Earth, Moon, and Sun
By: Taylor Beebe
The moon has many different phases!
This is my house. This is where I observe the moon from.
How does Earth move in space??
The way Earth moves in space is the way we get one full year or one full day. The way we get day and night is because of Earth's rotation. One full rotation is one day. Earth also revolves around the sun. One full revolution is one year.
What causes the seasons on Earth??
Earth rotates on it's axis, Earth's center and the North and South poles is Earth's axis.When Earth revolves around the sun, it follows a path, or, orbit. Earth's orbit is a slightly elongated circle, or ellipse.
How the sunlight hits Earth
Near the poles, sunlight arrives at a steep angle. As a result, it is spread out over a greater area. That's why is warmer near the equator then the poles.
Earth's tilted axis
Earth has seasons because of it's axis and how it revolves around the sun. Earth's axis is at a 23.5 degree angle. When the North end of it's axis is tilted away from the sun, it is winter in the northern hemisphere. When it is tilted toward the sun, it is summer in the northern hemisphere.
What determines the strength of the force of gravity between two objects?
It depends on distance and the object's mass. The gravity decreases quickly as the distance increases. If the distance between two objects doubled, the force of gravity between them would decrease to 1/4 of what it was originally.
What two factors combine to keep the moon and Earth in orbit?
inertia and gravity keep the moon and Earth in orbit. Earth's gravity pulls the moon toward it, preventing it from going in a straight line.At the same time, the moon keeps moving ahead because of it's inertia. If the Earth wasn't pulling the moon, the the moon would be moving in a straight line throughout space. Same thing with the sun. the sun' s gravity is pulling on Earth, and Earth's inertia keeps it moving ahead.
What causes the phases of the moon?
The phases of the moon you see depends on how much of the sunlight side of the moon faces the Earth. The moon reflects the light from the sun.
What are solar and lunar eclipses?
When the moon's shadow hits Earth or Earth's shadow hits the moon, an eclipse occurs. A solar eclipse occurs when the moon passes directly between Earth and the sun, blocking sunlight from Earth. A lunar eclipse occurs when Earth blocks sunlight from reaching the moon.
What causes the tides?
Tides are caused mainly by differences in how much the moon's gravity pulls on different parts of Earth.
What features are found on the moon's surface?
The features on the moon are called maria, craters, and highlands. The dark flat areas are called maria. The maria are actually hardened rock formed from huge lava flows that occurred between 3 and 4 billion years ago. The craters were caused by meteoroids hitting gits surface. Some of the light colored features on the moon are highlands or mountains.
What are some characteristics about the moon?
The moon is dry and airless. Compared to Earth, the moon is small and has large variations in it's surface temperature. The moon is 3,476 kilometers in diameter, a little less than the distance across the US. The moon is about 1/4 of Earth's diameter. The moon is only 1/8 as much mass as Earth. The moon is 130 degree Celsius in the day. and -180 degrees Celsius at night. There is no liquid on Earth.
How did the moon form?
Scientists theorize that a planet-sized object collided with Earth to form the moon.Material from the object and Earth's outer layers was ejected into orbit around Earth, where it formed a ring. Gravity cause this material to combine to make the moon.