Show:
Scientists
Rock Formation
Earth Formation
Minerals
100
This scientist discovered that the Earth was slowly cooling down.
Who is Lord Kelvin?
100
This rock forms from sediments compacting and cementing together and new layers going on top of old layers.
What is sedimentary?
100
This was formed 4.5 billion years ago.
What is Earth?
100
These are 4 things you can use to find out what type of mineral it is.
What is hardness, streak, color/luster, and density?
200
This scientist made discovery about how Earth was made from rocks/meteors.
Who is James Hutton?
200
This rock is mostly made of seashells.
What is limestone?
200
They showed up around 200,000 years ago.
What are humans?
200
What can you find out if you scratch a mineral against a fingernail, steel file, glass, penny, etc
What is hardness?
300
This scientist discovered that the continents were one together before they drifted about.
Wh0 is Alfred Wegner?
300
This rock is formed by molten rock cooling and hardening.
What is igneous?
300
Humans age compared to Earths
What is 22,500
400
This scientist accidentally found the Tombstone layer and discovered parts of the great extinction were found in it.
Who is Walter Alvarez?
400
These two types of rocks are igneous and can form above or below the Earths surface.
What is extrusive and intrusive?
400
The Earth was first made up of 1/3 of this.
What is land?
500
This scientist discovered ice ages and how they form.
Who is Louis Agassiz?
500
This is what forms when any rock melts.
what is magma?
500
Something huge was made up of Canada and the U.S.A
What is the super continent?
500
These are 4 characteristics for a mineral
What is naturally occurring, solid, crystalline structure, and definite chemical composition?