Planets
Give an example of a planet
Earth, Mercury, Mars, etc.
What two things are considered celestial objects?
Comets and Asteroids
Name one of the two planets that are considered gas giants in our solar system.
Neptune/Uranus
Name one planet in our solar system considered a gas giant.
Saturn or Juptier
The sun is considered a star. True or False.
True
How many planets do we have in our solar system?
Eight Planets
What is a comet?
a body made of rock and ice, typically a few kilometres in diameter, which orbits the Sun.
Name two elements that could be part of an ice giant.
oxygen, carbon, nitrogen, sulfur
BONUS
AUTOMATIC 200 POINTS
What is a stars life span depended on?
Its mass
Whats one requirment to be a planet?
It must orbit a star (in our cosmic neighborhood, the Sun).
It must be big enough to have enough gravity to force it into a spherical shape.
It must be big enough that its gravity cleared away any other objects of a similar size near its orbit around the Sun.
What is an aestroid?
a rocky object in space that can be a few feet wide to several hundred miles wide
What does the word "Ice" in "Ice Giants" mean?
The “Ice” part just means that they are made volatile chemical compounds with freezing points above about 100 K
Whats the defintion of a gas giant?
A gas giant is a giant planet mostly made of hydrogen and helium.
What star are we closest to?
The sun
What is a dwarf planet?
a celestial body that -orbits the sun, has enough mass to assume a nearly round shape, has not cleared the neighborhood around its orbit and is not a moon.
What is a meteor shower?
Earth travels around the sun it often hits areas where there is a lot of leftover debris from comets that have died
Name both planets in our solar system that are considered gas giants.
Neptune/Uranus
Name one planet in our solar system that is considered a gas giant.
Saturn or Jupiter
What ultimately ends the life of a star?
When the hydrogen supply in the core begins to run out, and the star is no longer generating heat by nuclear fusion, the core becomes unstable and contracts, ending the life cycle.
How many requirments to be a planet are there?
3 major requirements
What is an example of an asteroid or comet that we went over in the presentation?
alpha Capricornids, Comet Finlay, (or other examples)
Whats the defintion of an ice giant?
A giant planet composed mainly of elements heavier than hydrogen and helium.
What two elements make gas giants?
Hydrogen and Helium
What is nuclear fusion?
The process where massive amounts of energy are released, powering stars.