Science

• Rotation is Earth's turning on its imaginary line from east to west or in counterclockwise direction.
• It is daytime on the side that receives sunlight.
• Axis is an imaginary line at the Earth's center that passes from one pole to the opposite pole.
• High tide is experienced by the side of Earth facing the moon.
• The deflection of wind and water currents of Earth is called the Coriolis Efect.
• Latitude is the distance measured from 0 degrees to 90 degrees north and south of the equator.
• The rise and fall of the bodies of water is called tide.
• Longitude is the distance measured from 0 to 180 east or west of the prime meridian.
• 24 hours is the length of time of the Earth's complete rotation around its axis.
• Revolution is the movement of Earth. It is the Earth's orbit around the sun.
• We call the plane of the Earth's orbit around the sun the plane of the ecliptic.
• The time when earth is farthest from the sun is called aphelion.
• Equinox is either of the two times each year when the sun appears directly overhead at the equator, and the day and night are of equal length.
• The time when the earth is closest to the sun during its revolution is called perihelion.
• One complete revolution of Earth is called one year.
• Solstice is the time of year when the sun is farthest north of the equator.
• summer solstice is about June 22.
• winter solstice is about December 22.
• A year with 366 days is called leap year.
• A group of stars is called constellation.
• Planet Earth belong to the sun's family called the solar system.
• The sun is the star where the celestial bodies move around.
• Axis is the fixed point where each planet rotates.
• The spinning movement is called rotation.
• the solar system is a group of celestial bodies move around.
• Each planet revolves around the sun in imaginary paths called orbits.
• The gravitation and inertia make possible for the planets not to fall of into space or move out of their orbits.
• One complete rotation of a planet makes a day
• A year is one complete revolution of a planet around its sun.
• An ellipse is a closed curve formed around two fixed points.
• Gravity or gravitational pull is the force that holds the planets and moons in their orbits.
• The earth's nearest neighbor is Venus.
• The planets are large celestial body.
• Most planets have satellites that travel around them as they revolve around the sun. This satellites are called moons.
• Earth and Jupiter are prolate planets, meaning they are flattened at the poles.
• Mercury is the closest planet to the sun.