Vocab
temporary, relatively cool and dark regions of the Sun's surface
sunspots
How many planets are in the solar system?
8
what divides the inner planets and outer planets?
asteroid belt
What is the hottest planet in the solar system?
Venus
Why is Pluto not considered a planet?
There are objects that exist that are bigger in size
a relatively large icy body, such as Pluto, that originated within the Kuiper belt
dwarf planet
What is the solar system?
a collection of objects gravitationally bound to the Sun
What are the 4 inner planets?
Mercury
Venus
Earth
Mars
Which planet is the only one that has life in the solar system?
Earth
What are the chunks of rock that broken off an asteroid called?
meteoroid
the streak of light produced by a meteoroid burning in the Earth's atmosphere; a "shooting star"
meteor
why does the Sun have sunspots?
some areas of the Sun are cooler than others
What are the outer planets?
Jupiter
Saturn
Uranus
Neptune
Which planet is made of hydrogen and helium?
Neptune
What is the difference between a solar eclipse and lunar eclipse?
In a solar eclipse the moon casts a shadow on the Earth, in a lunar eclipse the moon is in the shadow of the Earth.
the plane of Earth's orbit around the Sun. All major objects of the solar system orbit roughly within this same plane
ecliptic
What are the 3 layers of the Sun?
photosphere
chromosphere
corona
What is the habitable zone?
Zone where water exists in a liquid state
Which planet has a moon named Titan that is similar to Earth
Saturn
What are he steps to the Moon's formation in order
Earth and its sibling collide
Debris spews creating a ring around Earth
Debris sticks together to form the Moon
the idea that the Sun and planets formed together from a cloud of gas and dust, a nebula
Nebular Theory
What 3 things does the theory of the solar system explain?
motions in the solar system
why the planets are divided into 2 major types
other features in the solar system such as asteroids and comets
True or False. There are 2 planets in the habitable zone. They are Venus and Earth.
False.
What planet has water in the form of polar ice caps?
Mars
What are the Moons 4 main phases in order?
new moon
waxing phase
full moon
waning phase