The earth can not orbit it's self. Orbit means one body going around another.
The sun shines on it at different places making it appear to change shape.
The phase (shape) is due to the position of the sun relative to the Earth and sun. When the Earth is between the sun & the moon, it casts a shadow on the moon's surface - changing the shape of the lighted segment. The difference in size is caused by the path of the moon around the earth. It orbits in an ellipse (egg-shape) - not a circle. This varies the distance from the earth - the closer it is, the larger it appears.
No. The earth's shadow on the moon is a lunar eclipse. The moon appears to change shape depending on which part of orbit the earth is in. The sun is almost always shining on one half of the moon (excluding during a lunar eclipse).
Because as it moves round the Earth, and the Earth moves round the Sun, the way it is positioned in the shadow of the sun changes how it looked. So if the moon was on one side of the Earth, and the sun was on the other, the sun would block out the moons light with its shadow.
The earth orbits around the sun in an elliptical path. It is too oblong to be considered circular orbit.
Because the light from the sun reflects of the moon so when the moon orbits the sun which means you can only see the part of the moon that has light reflecting off it
Because of the relative positions of the earth, sun and moon.
What changes from days to day is the amount of sunlight we see on the moon. As the moon orbits the earth and the earth orbits the sun, the sun hits the moon at a different angle in relation to the earth.
The Moon is rocky body in orbit round the Earth. Its appearance changes nightly because as it orbits the Earth the amount of its surface we can see illuminated by the Sun changes because of our angle of view.
The moon orbits the earth almost a complete circle.
An elliptical shape.
ALL planetary orbits are ellipses.
The Moon only seems to "change shape". We only see one side of the Moon from Earth. The variation in the amount of sunlight hitting that side of the Moon, as it orbits Earth, is why we see the apparent changes in shape. These changes are called "lunar phases".
The moon does not orbit the sun directly. The moon orbits the earth which orbits the sun (otherwise our moon would technically be called a dwarf planet).The reason the moon changes appearance when the earth orbits the sun is that a certain times the earth is partially or completely blocking the sunlight and will therefore cast a shadow onto the moon (as viewed from earth).The crescent shadow you see on the moon is actually earth's shadow.
The moon reflects sunlight and it orbits out planet, Earth, so we see the reflected sunlight at different angles on the moon, causing the appearance of the moon to change.
The sun shines on it at different places making it appear to change shape.
The phase (shape) is due to the position of the sun relative to the Earth and sun. When the Earth is between the sun & the moon, it casts a shadow on the moon's surface - changing the shape of the lighted segment. The difference in size is caused by the path of the moon around the earth. It orbits in an ellipse (egg-shape) - not a circle. This varies the distance from the earth - the closer it is, the larger it appears.