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5th Science Ch.4

5th Grade Science Ch. 4

Scientist who studies the earth? geologist
Scientist who studies minerals? mineralologists
People who explore caves? spelunkers
Hardest substance of all? diamond
The rarest gemstone? ruby
Most useful metal? iron
Only metal that stays liquid at room temperature? mercury
Metal that is the best conductor of electricity? silver
Animal and plant matter that has decayed in the soil? humus
What is the molten rock inside the earth's mantle? magma
An artificial rock that is very durable? concrete
Which rock is used to make chalkboards? slate
Material used as lead in pencils? graphite
Rock that smells like mud when wet? shale
Underground springs that shoot steam and extremely hot water into the air? geyser
Which metal is radioactive? uranium
What is oil called in its natural state? petroleum
Which metal is lightweight, nonmagnetic, and rustprrof? aluminum
All minerals form a special kind of soild called? crystal
What are the hard minerals that are rare and beautiful, but have not yet been polished? gemstones
What do you call plant and animal remains that have turned to stone? petrified fossils
What are scientists who study fossils called? paleontologists
When were most of the fossils probably formed? flood of Noah
What kind of fossil is formed when mud buries a plant or animal suddenly and then the mud quickly hardens around it? mold fossils
An igneous rock like volcanic glass? obsidian
A sedimentary rock made of sand? sandstone
A metamorphic rock that changed from limestone? marble
A sedimentary rock made from bones and seashells? limestone
An igneous rock that contains minerals of different colors? granite
A metamorphic rock that was changed from shale? slate
A sedimentary rock that smells like mud when it is wet? shale
An igneous rock made from hardened lava foam? pumice
An igneous rock? basalt
Which type of weathering occurs when natural acids slowly eat into a rock,breaking it down? chemical
Which type of weathering involves water and other natural elements breaking down rocks? physical
The outermost layer of the earth? crust
The middle layer of the earth? mantle
The innermost region of the earth? core
What is the inner core made of? solid metals
What is the outer core made of? liquid metals
What is the process by which new soil is formed as rocks crumble and break into smaller pieces? weathering
Any trace of a plant or animal left in a rock is called a? fossil
Created by: Mrs. Walker