Ages & Orbits
What does the moon orbit?
The Earth
What is the name of our sun?
Sol
The center of our Earth is called the...
Core (inner core)
What is our moon's name?
Luna
Melted rock is called
Lava/Magma/molten rock
What does the Earth orbit?
The sun.
What kind of star is our sun?
A yellow dwarf.
The outermost solid layer of the Earth is called the...
Crust.
How many planets are in our solar system?
Eight.
Which rock type is formed from broken bits of rock, sand, shell, etc. piled up in layers? (hint: fossils are only found in this type of rock).
How old is the Earth?
~4.55 billion years
What is it called when a star explodes?
Supernova.
The middle layer of the Earth is called the...
Mantle
What is the biggest planet in the solar system?
Jupiter.
Rocks formed from cooling magma or lava are called...
Igneous rocks
How old is the universe?
13.8 billion years old
Stars form from a disk of gas and dust called an...
Accretion disk.
Name the solid (not liquid) parts of the Earth.
The Crust and the Inner Core
(the Mantle and Outer core are liquid)
What is the hottest planet in the solar system?
Venus.
Rocks break apart due to cold, rain, wind, gravity, glaciers, and other factors. The breaking down of rocks is called
What does the sun orbit?
A supermassive black hole at the center of the Milky Way galaxy.
A star that is still forming (a "baby star") is called...
a protostar
The core of the Earth is made of metal. Name one of the two metals that our core is mostly made of.
Iron
Nickel
What are planets outside our solar system called?
Exoplanets
Rocks that transform due to heat and pressure are called...
Metamorphic rocks