Space
a body that orbits a planet
What is a satellite?
The spinning of Earth on its axis
What is rotation?
A large round pit caused by the impact of a meteoroid.
What is a crater?
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
What is Newton's First Law of Motion?
The different shapes of the moon as seen from Earth
What are phases?
A chunk of rock or dust in space
What is a meteoroid?
A force of attraction between objects that is due to their masses.
What is gravity?
The blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon
What is a lunar eclipse?
A ball of hot gas, primarily hydrogen and helium, that undergoes nuclear fusion.
What is a star?
The movement of an object around another object
revolution
The tendency of an object to resist a change in motion.
What is inertia?
Dark, flat areas on the moon's surface formed from huge ancient lava flows.
What are marias?
A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.
What is a meteor?
The lighter part of a shadow where light is partially blocked. A partial eclipse is seen.
What is a penumbra?
An event in which the shadow of one celestial body falls on another
What is an eclipse?
What is an umbra?
The darkest part of the moon's shadow. A total eclipse is seen.
A group of stars that form a pattern in the sky
What is a constellation?
A tide just after a new or full moon, when there is the greatest difference between high and low water.
What is spring tide?
The path of an object as it revolves around another object in space
What is an orbit?
Major bodies that orbit a star-cleared their orbit & rounded by its own gravity
What are planets?
A ball of frozen dust and rock that orbits the sun and has a tail that glows
What is a comet?
The periodic rise and fall of the water level in the oceans and other large bodies of water caused by the pull of gravity from the sun and moon
What is tide?
An imaginary line that passes through Earth's center and the North and South poles, about which Earth rotates
What is an axis?
A ball of frozen dust and rock that orbits the sun and has a tail that glows
What is a comet?
Occurs when the Earth's rotation axis is tilted directly toward or away from the Sun. Greatest difference between the length of day and night
What is the solstice?