Earth
This is when the Earth formed
What is 4.5 billion years ago?
This is when the first boney fish appeared on earth.
When is 380 million years ago?
This rock cool rapidly and has lots holes.
What is puimce?
This Scientist created the times and eras.
Who is Holmes?
This is what created the earths surface.
What is magma?
This was the first oxygen source.
What is stromatolites?
These animals became extinct 65 million years ago.
What is a dinosaur?
This type of rock has many fossils.
What is a sedimentary rock?
This scientist found the super continent.
Who is Alfred Wegener?
This hard and rare jewel is found near volcanoes.
What is a diamond?
This layer protects us from any outside gasses.
What is the Ozone layer?
This is when the first vertebrates appeared.
480 million years ago?
This rock is the material that most of your counter tops are made of.
What is Granite?
This is the scientist that figured out that the earth was made out of molten rock.
What is kelvin?
This is a mountain that has a whole at the top and spews out magma.
What is a volcano?
This is the era that dinosaurs lived in.
What is mesozoic?
This is when the first animal was on Earth.
When is 800 million years ago?
This rock is composed of volcanic ash, glass, and is tuff.
What is Tuff?
This is the scientist who discovered that the earth was made up of molten rock.
Who is Kelvin?
This rock comes from volcanic glass.
What is Obsidian?
This is when Pangea formed.
What is 335 million years ago?
This is the first living thing.
What is a prokaryotes?
These rocks are formed 3.5 million years ago.
What is pillow rock?
This scientist discovered the tombstone layer.
Who is Alverez?
This is the place where magma is held in the volcano.
What is a magma chamber?