Planets
How many planets are in our Solar System?
8
The inner planets are also known as____?
Terrestrial Planets
The outer planets are also known as____?
Gas Giants / Jovian Planets
Gravity is an invisible _________ that pulls objects toward each other.
force
If a meteoroid enters the Earth’s atmosphere and vaporizes it is known as a meteor. This meteor is often called a ______________.
shooting star.
What are large natural objects that orbit, or travel around stars?
Planets
Name the four terrestrial planets in order closest to the sun.
Mercury, Venus, Earth & Mars
Name the four outer planets in order farthest from the sun.
Neptune, Uranus, Saturn and Jupiter
The closer objects are to each other, the ________ their gravitational pull is.
stronger
These are smaller worlds, not quite big enough to be considered a standard planet, and include Pluto.
Dwarf Planets
Planets are the _______ objects in the solar system after the Sun.
largest
Which of the following is not true for Inner/Terrestrial Planets:
Small in size
No Rings
Many Moons
Close to the sun
Many Moons
The four largest moons of Jupiter are called the Galilean Moons, but how many moon does Jupiter have?
79
The planets of the solar system revolve around the Sun in orbits because of the Sun's —
gravity
Asteroids are mostly made of rock. Asteroids are found in the __________ between Mars and Jupiter.
Asteroid Belt
The ________ atmospheres are composed mostly of hydrogen and helium.
Gas giant / Jovian planet
_________ is the hottest of all planets in the solar system because of its thick atmosphere. The atmosphere's thick, toxic environment enables it to trap the heat.
Venus
This object in space is much bigger than Earth. It is mostly gas and is generally round. It has many moons and is closer than Saturn to Earth. It is also the fastest spinning planet.
Jupiter
In 1996, the comet Hale Bopp came close to Jupiter and its orbit around the sun changed from 4200 years to 2380 years. Why did the orbit change?
Jupiter's enormous gravity caused it to go of course.
Sometimes asteroids collide or crash into one another. When this happens, thousands of little pieces chip off the asteroids. These little pieces are called ________.
meteoroids
Within our solar system is a collection
of planets, moons, asteroids, and
other smaller objects. They all MOST
likely share which characteristic?
composition
reflectivity
size and shape
size and shape of their orbits
composition
Of the four terrestrial planets, __________ is the largest, and the only one with extensive regions of liquid water.
Earth
Which planets are classified as ice giants rather than gas giants, for easier distinction.
Uranus and Neptune
The Sun has much more gravity than Earth, but we stay on Earth’s surface instead of being pulled to the Sun because.....
we are much closer to Earth.
Most __________ are small, but larger ones have landed on cars or houses, causing damage.
meteorites