Earth
What planet do we live on?
Earth
What is the center of our Solar System?
The Sun
All planets orbit the ...
Sun
Small rocky or metallic body; looks like a streak of light if it enters Earth’s atmosphere
A. asteroid
B. comet
C. meteoroid
D. moon
C. meteoroid
The sun
_____ are chunks of dust and ice that orbit the sun.
Comets
Name all of the planets
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune
Small rocky or metallic body; many orbit between Mars and Jupiter
A. asteroid
B. comet
C. meteoroid
D. moon
A. asteroid
How long is one of Earth's rotations?
24 hours
Orbits a planet
Moon(s)
What are some differences between inner and outer planets?
Distance from the sun, separated by asteroid belt, how long they take to orbit
Early astronomers noticed that some stars in the sky appeared to move together across the sky as constellations. How do astronomers today explain this motion?
A. The sun’s gravity keeps the stars together because they orbit the sun at the same rate.
B. The stars appear to move together along a path because of Earth’s rotation on its axis.
C. Gravitational attraction between the stars keeps them fixed relative to each other as they move.
D. The stars move around Earth in the same way, so their positions relative to each other stay the same.
B. The stars appear to move together along a path because of Earth’s rotation on its axis.
What planet is Earth in order from the Sun?
3
Does every planet ROTATE on an axis?
Yes
Dwarf planets are smaller than planets. What is another way that dwarf planets are different?
A. They are not spherical.
B. They do not orbit the sun.
C. They have large objects in their orbits.
D. They move more slowly along their orbits.
C. They have large objects in their orbits.