Earth
How many earth layers are there?
4
Does the Moon rotate?
Yes, the Moon rotates on its axis at the same rate it orbits Earth which is why we always see the same side.
What is the thickest layer of the Earth?
The Mantle, which makes up about \(80\%\) of Earth's volume.
what percentage is all the water on earth??
71%
is there a "dark side" of the moon?
No. The side we cannot see from Earth is called the "far side," and it receives just as much sunlight as the side facing us.
What is the difference between continental and oceanic crust?
Continental crust is thicker and less dense (mostly granite), while oceanic crust is thinner and denser (mostly basalt).
How old is earth?
4.54 billion years old.
What causes moon phases?
The phases (new moon, crescent, gibbous, full) are caused by the changing angles of the Earth, Moon, and Sun, which determine how much of the sunlit side we can see.
Why is the inner core solid if it is so hot?
The inner core is solid despite extremely high temperatures due to the immense pressure from the surrounding layers.
Why is Earth round?
Gravity pulls matter toward the center, forming a sphere.
Why is it sometimes visible during the day?
The Moon is often bright enough to be seen in the daytime as it orbits, appearing in the sky during different times of the day depending on its phase.
What is the lithosphere?
The rigid outer part of the Earth, consisting of the crust and the upper mantle, which is broken into tectonic plates.
What is the hottest part?
The center of the Earth (core) is around (5,000-6,000
What is the Moon made of?
The surface is covered with dust and rocky, volcanic debris. It has a crust, mantle, and a small iron-rich core.
Which layer is responsible for the magnetic field?
The liquid outer core, composed primarily of molten iron and nickel.