Earth, Moon, and Sun
By: George Sell
The Moon (or Luna) is the Earth’s only natural satellite and was formed 4.6 billion years ago around some 30–50 million years after the formation of the solar system. The Moon is in synchronous rotation with Earth meaning the same side is always facing the Earth. The first unmanned mission to the Moon was in 1959 by the Soviet Lunar Program with the first manned landing being Apollo 11 in 1969.
from the website: http://space-facts.com/the-moon/
Section 1, Earth in Space
How Does Earth Move In Space?
The imaginary line in the middle of the earth is the axis. Earth rotates or spins on the axis and a full rotation is is one day, about 24 hours. The spinning of earth on its axis is a rotation. The sun rises in the east and sets in the west
What causes the cycle of seasons on Earth?
Earth has seasons because of earths tilted axis as it revolves around the sun. If the earth ,in the northern hemisphere, is tilted away from the sun it is winter and if its tilted towards the sun its summer. vise verses with the Southern hemisphere, if the Southern hemisphere is tilted toward the sun its summer and if its tilted away from the sun its winter. But, when its in mid change in both hemispheres, when winter goes to spring and summer goes to fall, the are in the middle or the axis is straight.
video URL: https://www.youtube.com/watch?v=H5yrwuDDgYE
Section 2 , Gravity and Motion
What determines the strength of the force of gravity between two objects?
The strength of the force of gravity between two objects depends on two factors, the masses of the object and the distance between them. According to the law of universal gravitation all of the objects around you are pulling on you , just as you are pulling on them.
R is for rotation or orbit and the M stands for mass
What two factors combine to keep the moon and the earth in orbit?
Isaac Newton ;concluded that two factors, inertia and gravity , combine to keep Earth in orbit around the sun and the moon in orbit around Earth. Earths gravity keeps pulling the moon toward it, preventing the moon from moving in a straight line. At the same time, the moon keeps moving ahead because of inertia.
My Observation Location
Section 3, Phases, Eclipse, and Tides
What causes the phases of the moon?
The changing relative positions of the moon, and sun cause the phases of the moon, eclipse, and tides. The moon rotate once on it's axis in the same amount of time as it revolves around
What are the solar and lunar eclipse?
When the moon's shadow hits Earth or Earth's hits the moon, an eclipse occurs. A solar eclipse is when a new moon blocks your view of the sun. A lunar Eclipse is when a full moon is directly between the moon and the sun.
What causes tides?
Tides are caused mainly by differences in how much the moons gravity pulls on different parts of the Earth. The definition of a tide is the rise and fall of ocean water that occurs every 12.5 hours or so.
Section 4, Earth's Moon
What features are found on the moon's surface?
Features on the moon's surface include Maria, Craters, and Highlands. Maria is the moon's surface that has dark,flat areas. Craters are large round pits. The craters were caused by meteoroids hitting or bumping the moon causing the big bowls.
It's A Moon Party!!
what are some characteristics of the moon?
The moon is dry and airless. Compared the earth the moon is small and has large variations in it's surface temperature. If you visited the moon, you would need to wear a bulky space suite to provide air to breath, protect against sunburn, and to keep you at a comfortable temperature.
How did the moon form?
Scientists theorize that a planet-sized object collided with the 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 caused the material to combine to form the moon.