Our solar system
The centre of our solar system
Sun
The name of the scientist that defined this force.
Isaac Newton
This is a small celestial body that burns up completely in the Earth's atmosphere.
Meteor.
True or false: We can see solar winds.
False.
Comets are made of these two materials.
Rock and ice
Name 1 outer planet
Jupiter, Saturn, Uranus, or Neptune
True or false: We can watch two marbles roll closer together because of the gravitational force between them.
False
This is a larger celestial body that reaches the ground on Earth.
Meteorite
This is the name of the polar auroras in the Northern hemisphere.
Aurora Borealis.
True or false: comets pass the Sun very frequently.
False.
Name 1 inner planet
Mercury, Venus, Earth, and Mars
True or false: the force that draws two magnets together is called gravitational force
False
Most meteorites come from these two sources.
Asteroids and comets
This is the name of the polar auroras in the Southern hemisphere.
Aurora Australis.
A comet's tail is made of these two materials.
Gas and dust.
It takes Earth 365.25 days to complete one of these.
What is a revolution?
This object in our solar system generates the most gravitational force.
The sun
This force causes celestial bodies to enter Earth's atmosphere.
Gravity.
Polar auroras on Earth occur when solar winds collide with this.
Particles in the atmosphere.
Comets orbit this object in our solar system.
The sun.
This force keeps planets in its orbit around the sun.
What is gravity?
The two variables (factors) that influence gravitational force.
Mass and distance
This is the name of the hole left by a meteorite impact.
Crater.
This force protects the Earth from being pelted by solar winds.
Magnetic force (magnetosphere, magnetic field)
A comet's tail is caused by this.
Solar winds.