Planets
What type of planet is Earth?
Rocky
What is the closest star to Earth?
The Sun
What is a satellite?
Anything that orbits a planet or a star
Can asteroids be as small as a pebble?
yes!
What is force?
A force is a push or pull on a mass that can change the object's motion.
What type of planet is Jupiter?
Gas
What two elements are stars made of?
Helium and Hydrogen
Classification of satellites
naturals and artificials
Are asteroids bigger than planets?
No
What is Mass?
The quantity of matter in an object.
Why are planets spherical in shape?
Gravity
What color are the hottest stars?
blue
Earth has more natural or artificial satellites orbiting it?
Artificial
What is an asteroid?
Rocks orbiting stars that are smaller than a planet or a satellite
What is weight?
The force exerted on an object due to gravity, pulling it toward the center of a massive body like the Earth
List the planets of the Solar System in order:
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune
True or False: The more massive a star is, the hotter it burns, the faster it uses up its fuel, and the shorter its life is.
True
Name one use of satellites on Earth.
communication
GPS
...
Where in the Solar system can you find most of the asteroids?
At the asteroid belt between Mars and Jupiter
What is gravity?
Gravity is the force by which a planet or other body draws objects toward its center
What is the criteria required to be considered a planet?
Orbit a star
Spherical shape.
its gravity has cleared away any other objects of a similar size near its orbit
What does a star become when it dies?
black hole or black dwarf
Planet with more natural satellites?
Saturn
How do asteroids vary?
shape, materials and size
Why is Pluto not a planet anymore?
Because it doesn't have the force of gravity needed to clear the space around it from celestial bodies that are around its size