The natural satellite of the Earth, visible mostly at night, by reflected light from the sun.
Moon
100
To turn around on an axis or center.
rotate
100
The repeating pattern of views of the moon's surface as we see it from Earth.
Phases of the moon
100
An object's _______ is directly opposite the light source.
shadow
100
A _________ is a tool often used to get a closer view of the moon.
a. thermometer
b. telescope
c. microscope
d. non of the above
b. telescope
200
The planet on which we live; the world
Earth
200
To move in a circular orbit.
spin or revolve
200
The phase between the full moon and the new moon, when a decreasing amount of the visible side is illuminated.
waning moon
200
true or false?
The sun appears to move in the sky because the Earth rotates or spins.
true
200
True or false?
A day is the time needed for the Earth to complete one rotation.
true
300
A fixed luminous point in the night sky that is a large, remote incandescent body like the sun.
star
300
A celestial body moving in an elliptical orbit around a star.
planet
300
Natural features of the landscape, natural physical features of the Earth's surface; for example: valleys, plateaus, mountains, plains, hills, or glaciers (a body of dense ice).
landforms
300
How does the Earth's rotation create day and night?
One part of the Earth has day while facing the sun, and the other part has night, turned away from the sun.
300
When the moon appears completely dark, it is a
a. full moon
b. quarter moon
c. new moon
d. waxing cresent
c. new moon
400
The star around which the Earth orbits.
Sun
400
The collection of planets and their moons in orbit around a sun, together with smaller bodies such as asteroids, meteoroids, and comets.
Solar System
400
A natural stream of water, usually freshwater, of fairly large size flowing in a definite course.
river
400
The pattern of changes in the Moon's shape repeats about once per _______.
This is called the _________ cycle.
month
lunar
400
All planets orbit a
a. sun
b. moon
c. star
d. all of the above
c. star
500
A group of stars forming a pattern that is traditionally named after its apparent form.
Constellation
500
The branch of science that deals with celestial objects, space, and the physical universe as a whole.
Astronomy
500
A body of salt water. Some are: Pacific, Atlantic, Indian, Southern, and Arctic.
Ocean
500
True or false?
Light never travels in a straight line.
false
Light always travels in a straight line
500
True or false?
The sun's reflection lights up the moon.