The Beginning of the Universe
What is the steady state model?
Model that suggests the universe has no beginning or end and is always expanding
Why is gravity important for the planets in the solar system?
It pulls the planets toward the sun, keeping them in orbit.
Where can asteroids be found?
In the asteroid belt between Mars and Jupiter
This phase of the moon occurs when the side facing Earth is completely illuminated by the Sun
Full Moon
What is a lunar eclipse?
**DOUBLE JEOPARDY**
Lunar eclipses occur when the Earth casts a shadow on earth
What is the big bang theory?
Theory that suggests the universe began around 13.8 billion years ago because of a massive explosion
Name the planets in order
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
What are comets made of?
**Double Jeopardy** - What are the three parts of a comet?
Icy bodies in space that release gas and dust, forming a bright coma and tail as they approach the Sun
**Double Jeopardy** - Nucles, Coma, Tail
When the moon appears to grow larger in the sky
Waxing
What is a solar eclipse?
What is the heliocentric model?
Model that states the sun is at the center of the solar system and the planets orbit around it.
Which planets are considered inner planets?
Mercury, Venus, Earth, Mars
Where are comets found?
Kuiper Belt or the Oort Cloud
How long does it take for the moon to complete all its phases?
29.5 days
(also can say 28 days or 28.3 days)
This eclipse can only be seen during a new moon
solar eclipse
What is the geocentric model?
**DOUBLE JEOPARDY**
Model that states that the Earth is at the center of the universe and the sun and planets orbit around it
Which planets are considered gas giants
Jupiter, Saturn, Uranus, Neptune
Where are meteoroids, meteorites, and meteors found?
Meteoroid: In space.
Meteor: Burns in the atmosphere.
Meteorite: Reaches Earth
This phase occurs right after a full moon starts to appear smaller
waning gibbous
Which eclipse can only occur during a full moon?
Lunar eclipses
Which planet takes the longest and the shortest amount of time to orbit the sun?
Neptune - Longest
Mercury - Shortest
What are asteroids made of?
Mostly made of rock and metal
This moon phase occurs when exactly half of the moon is illuminated, and its halfway between a full moon and a new moon
**DOUBLE JEOPARDY**
Third quarter moon
What is the Path of Totality?
The small area on Earth where a total solar eclipse can be seen