Show:
Rocks 1
Rocks 2
Minerals
Metals
Fossils
100
The three types of rocks
What is igneous, sedimentary, and metamorphic
100
The rock used to make chalkboards
What is slate
100
The hardest substance
What is a diamond
100
The most useful metal
What is iron
100
Plant and animal remains that have turned to STONE
What is petrified fossils
200
The molten rock in the earth's mantle
What is magma
200
The rock that smells like mud when wet
What is shale
200
The rarest gemstone
What is ruby
200
The best conductor of electricity
What is silver
200
Fossils that form when mud buries a plant or animal and then quickly hardens around it
What is mold fossils
300
The material used in pencils instead of lead
What is graphite
300
The material that is a very durable artificial rock
What is concrete
300
A rocklike object that looks like a mudball on the outside but is filled with crystals on the inside
What is a geode
300
Two types of weathering
What is physical and chemical
300
The time around when most fossils were probably formed
What is during the Flood of Noah's time
400
A person who studies minerals
What is mineralogist
400
A person who studies the structure of the earth
What is a geologist
400
All minerals for this special kind of solid
What is a crystal
400
The only metal that is liquid at room temperature
What is mercury
400
Oil in its natural state
What is petroleum or crude oil
500
The decaying plant and animal material in soil
What is humus
500
A person who studies fossils
What is a paleontologist
500
Rare beautiful minerals that are very hard but have not yet been polished
What is a gemstone
500
A lightweight, nonmagnetic, rustproof metal
What is aluminum
500
A radioactive metal used as a source for nuclear power
What is uranium