Vocabulary
An imaginary line that celestial objects rotate around
Axis
the single star that lines up with Earth's North Pole axis
Polaris (North Star)
Give the definition of rotation
object spins around itself/axis
give the definition of revolution
object moving around another object
What type of celestial object is the Sun
star
The shape of an orbit
The name of the pathway a celestial object takes during a revolution
Orbit
Earth rotates around its ___________ during a rotation. It has a tilt of ________________
axis, 23.5 degrees
Earth moves around this during a revolution
sun
What type of celestial object is the Earth?
Planet
The motion of a celestial object spinning around it's axis
rotation
An object that occurs naturally in space
Celestial object
The amount of time it takes earth to rotate once ( put both days and hours)
1 day
24 hours
This is how long it takes the Earth to revolve around the sun (days and years)
365 1/4 days
1 year
answers may vary (rockets, space ships, space stations, satellites, rovers)
The motion of a celestial object moving around another celestial object
Revolution
Half of a sphere
Hemisphere
The rotation of Earth causes this
Day and night
The earth revolving around the sun causes
seasons
temperature changes
leap years
True or False: All of the following are considered celestial objects
-stars
-moons
-comets
-asteroids
-black holes
-galaxies
True
A pattern that forms from stars in the night sky
constellation
The half of the Earth North America is located on
Northern Hemisphere
When North America is in day time, Asia (the other side of the world) will be in _____________.
Every 4 years we add up the extra 1/4 days. What is this called and what is the date?
Leap year
February 29
Anna and Bill are having a discussion about celestial objects. Anna states that a constellation is a celestial objects because they form naturally in space. Bill says that constellations are not a celestial object because they are not actually objects found in space but patterns of stars observed from Earth. Who is correct?
Bill is correct:
- constellations are made up pictures by astronomers
- the celestial objects involved are stars! (you can only see the "pattern" from Earth