Gravity
Gravity is a force that causes matter to pull towards the ______ of the Earth.
A) side
B) center
C) top
B) center
The Earth rotates on its _______.
axis
The Earth revolves around the _______.
sun
The coolest star is the color ______.
Red
Earth is the ______ planet from the sun.
A) First
B) Second
C) Third
C) Third
A) True
True or False: The Earth is placed straight up and down on its axis.
It takes 1 _____ for the Earth to revolve around the sun.
year
The hottest star is the color ______.
Blue
Jupiter
False: There is a small amount of gravity on the moon -- only about 17% of what we have here on Earth.
The Earth's rotation causes ______________.
A) day and night
B) seasons
A) day and night
The path that a planet takes around the sun is called its ________.
orbit
The sun belongs in which size category?
A) Main sequence
B) Giant
C) Supergiant
A) Main sequence
The farthest planet from the sun is ________.
Neptune
The reason a piece of paper goes back and forth and not straight down when dropped is because it is picking up air ____________ as it falls.
resistance
The Earth's completes a rotation every _______.
A) minute
B) day
C) year
B) day
Because a revolution is 365.25 days, every 4 years Earth has a _______ ________ on February 29th!
leap year
A group of stars that seem to form a picture is called a ______________.
Constellation
NASA does a lot of research on the planet ______ because it's the only other planet that could possibly support life.
Mars
A) mass, weight
B) weight, mass
How many hours are in a day?
24 hours
Because Earth's revolution takes a whole year to complete, it is the reason we have the 4 _________.
seasons
____________ magnitude is the actual measure of the brightness of a star.
A) Apparent
B) Absolute
B) Absolute
This was the first person to step foot on Earth's moon!
Neil Armstrong