A cloud of gas and dust in space is know as what?
This diagram shows the relationship between a stars temperature and absolute magnitude.
HR-Diagram
The Big Bang is believed to have occurred _____ billions years ago.
14
This planet is known as the “Red Planet” because of its iron-rich soil.
Mars
This is the name for the different shapes the Moon appears to take over about 29.5 days.
Lunar Cycle
Nuclear Fusion
These color stars are the hottest.
Blue
This scientist created the theory of relativity which helped support the big bang theory.
Albert Einstein
This gas giant has a famous Great Red Spot, which is a giant storm.
Jupiter
When the Sun, Earth, and Moon are alined gravity causes these tides in Earth’s oceans.
Spring Tides
A developing star that is not hot enough to engage in nuclear fusion is called this.
Protostar
These color stars are the coldest.
Red
What was Hubble able to observe that helped to support the Big Bang Theory?
That galaxies are moving away from one another.
This planet is known for its extensive rings.
Saturn
This happens when the Earth comes between the Sun and the Moon, casting a shadow on the Moon.
Our sun is approximately ____ billion years old.
4.6
Stars found on the diagonal line of stars of the H-R diagram are called this.
Main Sequence Stars
Residual radiation like light, heat, radio, and magnetic waves are examples of this.
Cosmic Background Radiation.
This planet is the hottest in the solar system due to its thick atmosphere.
Venus
This theory suggests the Moon formed from debris after a Mars-sized object collided with Earth.
Giant Impact Theory
Which stars live the longest, high mass or low mass stars?
Low mass
Apparent magnitude is the brightness of a star as seen from this place.
Earth
It has been predicted that, if the Universe began as an explosion, then the matter created in the Big Bang would be 75% hydrogen, the simplest atom, and __% helium, the second most simple atom.
25%
This bluish gas giant rotates on its side and has faint rings.
Uranus
Apollo 13