Formation of the Solar System
After a massive supernova, a spinning disc of gas and dust formed known as the what?
What is the solar nebula.
This is the reason that the Moon may have more craters than Earth. (There are 3 correct answers).
What is erosion.
What are volcanoes.
What is an atmosphere.
This term describes the early solar system when it was mostly rocks circling the sun, being pulled together by gravity, and creating planets and other larger objects.
What is accretion.
When Earth first formed, it looked very different than it does today. What were the conditions of the early Earth like?
What is very hot, lots of magma, uninhabitable.
This type of erosion can be classified into three different categories, splash, sheet, and rill.
What is water erosion.
These can be used to tell how old a celestial surface is. If there is more, the surface is typically older.
What are craters.
Each terrestrial planet has AT LEAST these three layers.
What are a core, mantle, and crust.
Scientists believe a small planet called Thea crashed into Earth and created this celestial object?
What is the moon.
This type of erosion is most likely the type to affect a crater that occurs in the desert.
What is wind erosion.
These piece(s) of evidence tell us that planets formed in the same way at approximately the same time in our solar system.
What are the layers of the planets (mostly 3)
What is that each planet is made of similar elements.
The United State's Magellan satellite orbited this planet for four years in the 90's. It is the hottest planet in our solar system.
What is Venus.
The least dense planet in the solar system. Famous for its rings.
What is Saturn.
Comets and asteroids most likely brought what to Earth?
What is water.
These can erase the presence of craters completely. Jupiter's moon Io has almost no craters due to these geological features.
What are volcanoes.
How long ago did our planets form? (within a few million years is fine!)
What is 4.4 billion years ago.
This planet has a volcano named Olympus Mons. We believe life may have already existed here, or could exist here in the future.
What is Mars.
This is what volcanoes help to create for planet Earth.
What is the atmosphere.
Other than our atmosphere, erosion, and volcanoes, what else is a reason the Earth may not have as many craters as other celestial objects?
What is 70% of the Earth is covered by water.
What is the name of the oldest type of rocks found that scientists believe were created in the birth of our solar system?
What are chondrites.
This planet circles the sun every 164 years. It is the furthest from the sun.
What is Neptune.
This planet has the greatest range in temperature because it is close to the sun, but lacks an atmosphere to hold in heat.
What is Mercury