Lesson 1
A mineral's streak is the color of it's ______.
powder
Color alone ____________ provide enough information to identify a rock.
does not
People throughout history have used igneous rock for ______ and building materials.
tools
Extrusive rocks have _____ grains than intrusive rocks.
smaller
Which country is the only one to have won a medal at every Olympic Winter Games?
United States
Quartz, gold, and calcite are examples of _______, but coal is not.
minerals
To study a rock sample, geologist observe the rock's mineral composition, color, and ________.
texture
______ is used for cobblestones and in landscaping.
Basalt
Slow cooling of hot magma leads to the formation of _____ crystals.
large
Which of the following countries has won the most Winter Olympic medals?
Norway
Geologist use the _______ test to determine the hardness of a mineral.
scratch
The way in which each of the three major groups of rocks forms is ________.
different
________ rock forms beneath Earth's surface.
Intrusive
Rocks that are ______ have grains that lie in a pattern of flat layers or form swirls.
banded
Which city has hosted both Winter and Summer Olympics?
Beijing
The repeating pattern of a mineral's particles forms a solid is called a(n) ________.
crystal
A rock's ______ give the rock its texture.
grains
Magma that is _____ silica usually forms light-colored rocks, such as granite.
high
Hard and dense are terms to best describe ______ rocks.
igenous
In 2022, 222 athletes competed as part of Team USA in the Winter Olympics. Which state had the highest number of native athletes?
California
A narrow channel or slab of a mineral that is different from the surrounding rock is called a(n) _______.
vein
Rocks that have large grains you can easily see are described as ________ grained.
coarse
Igneous rocks are classified by their _______, texture, and mineral composition.
origin
Rhyolite is an _______ rock.
extrusive
Which of the following athletes is the most decorated American Winter Olympian?
Apolo Anton Ohno