1.The age of the solar system is thought to be about
1.5 Billion years
3.5 billion years
4.6 billion years
13.7 billion years
Which of the following is evidence used to determine the age of the solar system?
Which of the following is an important clue about how the solar system formed?
the planets are different sizes and shapes
the planets all orbit the sun in the same direction
the planets orbit the sun in different directions
the planets rotate on their axis at the same speed
The first object to form in the solar system was the
A giant nebula is made mostly of
hydrogen and helium
hydrogen and iron
helium and iron
What causes a giant nebula to contract?
All planets orbit the Sun on almost the same plane. This is a clue to
the formation of the sun
the formation of the galaxy
the formation of the universe
the formation of the solar system
Nebulas come from materials that are left over from the big bang or from...
debris from previous supernovas
the asteroid belt
The planets and moons formed by what starting to clump together and colliding with other
small pieces of dust
A nebula spins more rapidly as it collapses because of...
gases and gravity opposing each other
angular momentum conversation
Newton's laws of motion
The star in the milky way galaxy is what size star?
small sized star
average sized star
large sized star
massive sized star
How many planets are in our solar system?
What is the name of the dwarf planet?
What is the dwarf planet made of?
liquid water and rock
rock and methane ice
water ice and rock
Which is the coldest planet/dwarf planet?
Which two planets are very similar in the structure and atmosphere?
Which planet is the largest?
Which planet has ice in polar regions and a thin atmosphere of carbon dioxide?
Which planet/dwarf planet is the hottest?
Which planet has a moderate temperature?
Which planet has an atmosphere that is mostly nitrogen?
Which planet/dwarf planet has an atmosphere of carbon dioxide so thick you cannot see the surface?
Which planet has the largest change in its temperature?
Which planet/dwarf planet has just a hint of methane for its atmosphere?
Which planet/dwarf planet has just a hint of helium for its atmosphere?
Which planet is the smallest?
Which planet has an extraordinary ring system?
What are the rings around Saturn made of?
Which planet would float in water?
Which two planets are liquid inside?
List the planets in order working from the Sun outward.
, , , , , , ,
There are irregularly shaped bodies that orbit the sun.
Objects that have not cleared their orbits of other objects are
What is found between Mars and Jupiter?
Long period comets comets come from very distant region of the solar system called...
What is believed to have caused mass organism extinction on Earth's past?
What leaves a trail of glowing ice particles, water vapor, and gases as it moves through the solar system?
These are small icy objects that orbit the sun
What provides scientists with clues about our solar system?
These orbit the Sun but have no atmosphere or internal heat.
How many known dwarf planets are there in our solar system?
Jupiter's massive gravity kept many these from forming into another planet?
There are over 4,500 of these objects know to pass Earth on a regular basis.
What is a coma?
name of a dwarf planet
vaporized gas and dust
tiny grains of sand of a merteoroid
What do we call debris left over by comets when it gets pulled toward Earth by gravity?
Some meteorites found on Earth are believed to have come from which planet?
Which of the following are often called "shooting stars"
What determines a comets period?
Length of time for the comet to orbit the sun
Length of time for the comet to totally break apart
Length of time for one visit close to Earth and the next
Length of time for a comet to from a nebula
When a meteoroid is as small as tiny grains of sand it is called?
Which of the follwoing typically have extremely elliptical orbits around the sun?
All of the following are considered dwarf planets except
Kuiper belt is located beyond