5th Grade Science Test 4 Flashcards
fiery rock
igneous
obsidian, pumice, and granite
igneous rocks
rock layed down in layers
sedimentary rock
limestone, sandstone, shale
sedimentary rock
rocks thought to have changed from one type to another
metamorphic
marble, slate
metamorphic rocks
scientists who study the structure of the earth
geologists
the unmovable rock
bedrock
melted rock
magma
magma that has erupted through the earths surface
lava
new soil is formed by a process called what
wheathering
any material found in Gods creation
natural resource
decaying plant and animal material
humus
a substance that forms rocks
mineral
have a definite shape,sharp edges and flat sides
crystal
mud ball
geode
rare beautiful minerals which are very hard
gemstones
scientists who study minerals
mineralogists
stone icycles hanging from the ceiling of a cave
stalactites
stone formations growing up from the floor
stalacmites
another name for oil
petroleum
a black or brown rocklike substance
coal
the preserved remains of plants or animals
fossils
scientists who study fossils
paleontologists
what is soil
decayed plants and animals
name two ways wheathering breaks or wears down rock
chemical and physical
how does quartz get its color
by its impurities
what is the name for plant and animal remains that have turned into stone
a mold
famous geyser in Yellowstone national park
old faithful
how is a cave formed
caves were made underground as acid dissolved some of the rock
why are rocks found near river delta
because mineral wash up and form rocks
how does a geyser work
a column rises until all the water is launched a couple feet into the air
a rock that floats
pumise
the hardest substance
crystal
most of the rock under the surface
bedrock
the metal which is liquid at room temperature
mercury
the rarest gemstone
ruby
was once limestone
marble
a radioactive which is the primary source of nuclear power
uranium
rock formed from shells of sea creatures
limestone
volcanic glass
obsidian
