Show:
Minerals
Sedimentary Rocks
Igneous Rocks
Metamorphic Rocks
Hodge-Podge
100
Define what minerals are
Minerals are natural, nonliving solid crystals that make up rocks.
100
How are sedimentary rocks formed?
They are formed from new layers of sediment pressing together older layers of sediment, held together by minerals.
100
What is molten rock called?
Magma
100
Rocks that have changed as a result of ____ and ____ are known as metamorphic rocks.
heat, pressure
100
The recycling of old rock into new is an ongoing process known as the
Rock cycle
200
All rocks are made of....
Minerals
200
The eroded material that settles on land or on the bottoms of lakes, rivers, and oceans is called
sediment
200
Name two types of igneous rock (not intrusive or extrusive)
Basalt, pumice, obsidian, granite, gabbo
200
Name two types of metamorphic rock
Phyllite, slate, Gneiss
200
How do we classify rocks? (5 ways)
color, shape, size, smell, texture
300
Scientists have identified over ______ minerals. a.) 3,000 b.) 100 c.) 10,000 d.) 300
a.) 3,000
300
Water, ice, wind, and gravity sweep bits of rock, soil, shells, and dead plant and animal matter from one place to another. This process is known as
erosion
300
How do igneous rocks form?
from molten rock
300
Metamorphic rocks have gone through a metamorphosis. What does this mean?
changed form
300
Weathering causes.... a.) storms b.) sediments to harden c.) rock to wear away d.) volcanoes to erupt
c.) rock to wear away
400
Name two different minerals.
quartz, fluorite, calcite, mica, diamond, topaz, gypsum
400
Name two types of sedimentary rock.
sandstone, limestone, conglomerate, mudstone
400
Where do intrusive igneous rocks form?
inside the earth
400
Metamorphic rocks can form from _____, _____, and _____.
sedimentary, igneous, and other metamorphic rocks
400
The geologic time scale is divided into four major time periods. Name two of them.
Cenozoic era (present) Mesozoic era (248 Million Years Ago) Paleozoic era (About 544 Million Years Ago) Precambrian era (Over 544 Million Years Ago)
500
How can minerals be indentified?
luster, hardness, streak
500
Where do extrusive igneous rocks form?
on the Earth's surface
500
What types of clues can scientists gather from fossils?
an idea of what plants and animals once looked like, where certain species of animal once lived, evidence that the Earth's landscape may have been different at various points in time