Lesson 1
A mineral's streak is the color of it's _____?
About how many rock-forming minerals make up most of the rocks of Earth's crust?
20
_____ rock forms beneath Earth's surface.
Intrusive
Slow cooling of hot magma leads to the formation of _____ crystals.
large
How much money did Taylor Swift’s Eras Tour contribute to the overall US economy (this was an estimate)?
5 Billion
Quartz, gold, and calcite are examples of _____, but coal is not.
minerals
Term describes how a rock's surface looks and feels.
texture
Magma that is ____ in silica usually forms light-colored rocks, such as granite.
high
Term describes how a mineral looks when it breaks apart in an irregular way?
fracture
What was the name of Prince Harry's memoir published in January of 2023?
Spare
Geologist use the ______ test to determine the hardness of a mineral.
scratch
Is a kind of rock that forms when heat or pressure change an existing rock.
metamorphic
Extrusive rocks have ___ grains than intrusive rocks.
smaller
Rocks that have large grains you can easily see are described as ____ grained.
coarse
According to Spotify, which was the most globally streamed song of 2023?
Flowers - Miley Cyrus
The repeating pattern of a mineral's particles forms a solid called a(n) _______.
crystal
A rock's ____ give the rock its texture.
grains
Igneous rock is mixed with soil and used for starting vegetable seeds.
perlite
Best describes igneous rocks.
hard and dense
Who played Ariel in the 2023 live-action remake of 'The Little Mermaid'?
Halle Bailey
A narrow channel or slab of a mineral that is different from the surrounding rock is called a(n) _______.
vein
To study a rock sample, geologist observe the rock's mineral composition, color, and _____.
texture
from slowly cooling magma
_____ is an extrusive igneous rock.
Rhyolite
In which month was the coronation of King Charles III scheduled?
May