Inner & Outer Space
Icy space objects that glow and form tails near the Sun.
comets
The Asteroid belt is found between which 2 planets
Mars and Juipter
What hold the planets in orbit?
Suns Gravity
The gas that makes up most of Earth’s atmosphere.
nitrogen
The four inner (terrestrial) planets.
Mercury, Venus, Earth, and Mars
grouping of icy particles surrounding the Sun outside the solar system
Oort Cloud
Increasing mass increases this force
Gravitational pull
Planets need this type of water to support life
Liquid Water
The four outer planets made mostly of gas.
Jupiter, Saturn, Uranus, and Neptune
Made of ice, dust, and rock and have tails.
comets
Increasing distance makes gravity do this.
Decrease
What is the term for a planet being the correct distance from the sun to support life?
Habitable/ Goldilocks zone
Because it is the planet with the most mass in the solar system. More mass= Stronger gravitational pull
Rocky object Not large enough to be classified as a planet.
(not a dwarf planet)
Asteroids
What would happen to earths orbit if the suns gravity turned off?
Earth would continue in a straight line (Inertia)
Mars is in the Habitable zone, Why cant it support life?
Atmosphere is to thin to have liquid water on surface
Two places where comets come from.
Kuiper Belt and the Oort Cloud
Space rocks that burn up in Earth’s atmosphere.
meteors
Two things that affect gravity.
mass and distance
Why is a planet being in the Habitable zone so important?
Located in Habitable zone means the temperature is not too hot or too cold so liquid water can exist