Celestial Bodies
What is a celestial body?
Any natural object in space
How planets are there officially?
8
What is an asteroid?
Small, rocky object that orbits the sun
What is gravity?
The force of attraction between 2 objects
What is a dwarf planet?
Smaller than the main planets and orbit the sun
Name 2 examples
planets, sun, moon, asteroids, etc
What are the inner planets?
MVEM
Where are asteroids located?
Mostly in the asteroid belt
How does gravity affect the planets?
It keeps them in orbit around the sun
Name an example
Pluto, Eris, Humea
What is a small rocky object that orbits the sun in a belt called?
asteroid
What is one characteristic of outer planets?
made of gas
What happens to meteors when they enter earth's atmosphere?
They burn up and create a shooting star effect
What is an orbit?
The path an object takes around another
Why aren't dwarf planets considered main planets?
They did not clear the area around their orbit
What named bodies do you know?
Mars, Earth, Pluto, Makemake, the moon, etc
Why are the inner planets called terrestrial planets?
They are similar in size and composition to Earth
Why are comets referred to as dirty snowballs?
They are made of ice, gas, and ice
Why don't planets crash into each other?
The sun's gravity keeps them in a stable path and they are far away from each other
What caused planets to be demoted to dwarfs?
Scientists got a clear picture of Pluto to see it was not a gas giant
What is a comet composed of?
ice, gas, and dust
What is the pneumonic device we use to remember the planets?
My very excellent mother just served us nachos
What could happen if an asteroid hit the earth's surface?
It could cause a lot of damage and kill plants and animals
Objects are being pulled down toward planets and the sun
How many dwarfs are there?
5