Admin Table of Contents
- 1 What are the long trails of ejecta that radiate outward from craters called?
- 2 Why have very old craters on the moon not been erased?
- 3 How do craters form quizlet?
- 4 What formed the craters on the Moon?
- 5 Do meteors still hit the Moon?
- 6 Does the Moon protect the Earth?
- 7 What is the spinning of a body on its axis?
- 8 Is Earth’s orbit elliptical?
What are the long trails of ejecta that radiate outward from craters called?
Some craters have long trails of ejecta, called rays,that radiate outward.
Why have very old craters on the moon not been erased?
Why have very old craters in the moon not been erased as similar craters on earth have been? There are no erosion forces on the moon as there are on earth. 4- a solid rock crust formed over the outer surface of the moon.
How do craters form quizlet?
How did most lunar craters form? Craters form from the impact of rapidly moving debris. Maria originated when asteroids punctured the lunar surface, letting magma bleed out, forming extensive lava flows.
What is an oval shaped path?
An elliptical orbit is the revolving of one object around another in an oval-shaped path called an ellipse.
Which produces an impact crater?
Craters produced by the collision of a meteorite with the Earth (or another planet or moon) are called impact craters. The high-speed impact of a large meteorite compresses, or forces downward, a wide area of rock. The pressure pulverizes the rock.
What formed the craters on the Moon?
These are impact craters, each of which was formed when an asteroid or comet collided with the Moon’s surface. The large number of craters in this region indicates that this part of the Moon is quite ancient. Geologic processes have not erased the craters with time.
Do meteors still hit the Moon?
A lunar meteorite is a meteorite that is known to have originated on the Moon. A meteorite hitting the Moon is normally classified as a transient lunar phenomenon….Lunar meteorite.
| Lunar meteorite (Lunaite) | |
|---|---|
| Type | Achondrite |
| Subgroups | Highland breccia Mare basalt |
| Parent body | Moon |
| Total known specimens | 306 |
Does the Moon protect the Earth?
The Moon is Earth’s only natural satellite and the fifth largest moon in the solar system. The Moon’s presence helps stabilize our planet’s wobble and moderate our climate. The Moon’s distance from Earth is about 240,000 miles (385,000km). The Moon has a very thin atmosphere called an exosphere.
How do craters form?
Craters are formed by the outward explosion of rocks and other materials from a volcano. Calderas are formed by the inward collapse of a volcano’s magma chamber. Craters are usually much smaller features than calderas, and calderas are sometimes considered giant craters.
What are the round pits on the Moon called?
Craters are the most common surface features on many solid planets and moons—Mercury and our Moon are covered with craters. This portion of the Moon is covered by numerous circular holes. These are impact craters, each of which was formed when an asteroid or comet collided with the Moon’s surface.
What is the spinning of a body on its axis?
This spinning movement is called Earth’s rotation. At the same time that the Earth spins on its axis, it also orbits, or revolves around the Sun. This movement is called revolution.
Is Earth’s orbit elliptical?
Earth’s orbit is not a perfect circle. It is elliptical, or slightly oval-shaped. This means there is one point in the orbit where Earth is closest to the Sun, and another where Earth is farthest from the Sun. In fact, Earth’s elliptical orbit has nothing to do with seasons.