A Tour of the Solar System
Card Set Information
A Tour of the Solar System
Tour Solar System
Jefferson Elementary School Rm 204
"Most of the dots are
Planet: A large body orbiting a star. A celestrial body.
"There is a
in the center of the solar system."
Star: A huge gas sphere that radiates light. The Sun is a star.
"Four small planets
pretty close to the star."
Orbit: To travel in a curved path around something else.
Define: Terrestrial planets
"These are the rocky
Terrestrial planets: One of the four small and rocky planets closest to the Sun. These are Mercury, Venus, Earth, and Mars.
"Next there is a region of small bits of matter orbiting the star known as the
Asteroid: Small, solid objects that orbit the sun. Most of the asteroids in the solar system are located between Mars and Jupiter.
Define: Gas giants
"Out further, four big gas planets orbit the star. These are the
Gas giants: Any of the four planets that are made of gas. These are Jupiter, Saturn, Uranus, and Neptune.
Define: Kuiper Belt
"Beyond the gas giants is a huge region of different-size icy chunks of matter called the
Kuiper Belt: A huge region beyond the gas giants made up of different-size icy chunks of matter.
Define: Milky Way
"It is much like millions of other stars in the
Milky Way: The galaxy in which the solar system resides.
"The Sun is made mostly of
(72%) and helium (26%)."
Hydrogen: A gas that makes up 72% of the Sun.
"The Sun is made mostly of hydrogen (72%) and
Helium: A gas that makes up 26% of the Sun.
Define: Thermonuclear reactions
"Hydrogen atoms constantly combine to form helium atoms in
Thermonuclear reactions: Reactions that change atomic structure and create heat and light energy, such as the reactions that occur on the Sun.
"About 3.6 tons of the Sun's
is being changed into heat and light every second."
Mass: The amount of material in something.
"All the other solar-system objects travel around the Sun in
almost-circular paths called orbits."
Predictable: Possible to estimate a future event based on data or experience.
is closest to the Sun."
Mercury: The planet closest to the Sun.
"Mercury is smaller than Earth and has no
Satellite: An object, natural or artificial, that orbits a larger object. Moons are satellites.
"Mercury is covered with
are the result of thousands of collisions with objects flying through space."
Craters: A hole formed by an object impacting a surface.
is the second planet from the Sun."
Venus: The second planet from the Sun.
is the third planet from the Sun."
Earth: The third planet from the Sun, known as the water planet.
"Earth also has one large satellite called the
Moon: Earth's natural satellite.
"The Moon is the only
place humans have visited."
Extraterrestrial: Beyond Earth.
is the fourth planet from the Sun and has two small satellites, Phobos and Deimos."
Mars: The fourth planet from the Sun.
is the fifth planet from the Sun."
Jupiter: The fifth planet from the Sun.
is the sixth planet from the Sun."
Saturn: The sixth planet form the Sun.
is the seventh planet from the Sun."
Uranus: The seventh planet from the Sun.
is the eighth planet form the Sun."
Neptune: The eighth planet from the Sun.
are big chunks of ice, rock, and gas."
Comets: A mass of ice and dust orbiting the Sun.
What is the Sun and what is it made of?
The Sun is made mostly of hydrogen (72%) and helium (26%).
What is the solar system?
The planet Earth, the Moon, the Sun, and the seven other planets (1.Mercury 2.Venus 4.Mars 5.Jupiter 6.Saturn 7.Uranus 8.Neptune) and their satellites, and small objects, such as asteroids and comets.
Which planets are terrestrial planets? Which planets are gas giants?
Mercury, Venus, Earth, and Mars are terrestrial planets. Jupiter, Saturn, Uranus, and Neptune are gas giants.
What is Kuiper Belt and what is found there?
Kuiper Belt is a huge region beyond the gas giants made up of different-size icy chunks of matter. Some icy chunks that are big enough to be planets can be found there.
Which planet has the most moons orbiting it?
Jupiter is the planet with the most moons. Jupiter has 63 moons orbiting around it.
How are asteroids and comets alike and different?
Both asteroids and comets orbit around the Sun.
Asteroids are mostly located between Mars and Jupiter.
Comets are mass of ice and dust orbiting the Sun. Comets can be located outside of the area between Mars and Jupiter.