Liquid rock that inside the earth is called______________ .
magma
100
Talcum powder is made from ground up ________________ .
talc
100
Where do we find most fossils?
Sedimentary rocks
100
A natural resource is a living or nonliving thing found in
_______________ that people need.
nature (on Earth)
100
Lava cools to form ________________ rocks.
Igneous
200
What do we call liguid rock when it comes through the Earth's crust?
Lava
200
What mineral is called "fool's gold?"
Pyrite
200
How old must an object be to be considered a fossil?
10,000 years old
200
Resources that will not run out if used wisely are called
______________________ resources.
renewable
200
What is the hardest mineral?
Diamond
300
All rocks are made of ________________________ .
minerals
300
What is a mineral?
solid, nonliving material found in nature
300
What type of fossil is formed when an animal leaves a footprint in mud, and the mud turns to rock?
trace fossil
300
What do we call resources that will be gone forever if we use them up?
Nonrenewable Resources
300
Rocks that are changed by heat and pressure are _________________________ rocks.
metamorphic
400
Name one way that people use rocks.
landscaping, buildings, roads, walls
400
What is the name of the hardness scale that is used to identify the hardness of minerals?
Moh's Hardness Scale
400
What is a fossil?
the hardened part or mark left by an organism that lived long ago
400
Name two renewable resources.
sun, air, trees, water, plants
400
Name an igneous rock.
granite, pumice, obsidian
500
What are the three types of rocks?
Igneous, Sedimentary, and Metamorphic
500
Name two properties of minerals.
color, streak, luster, and hardness
500
Name two kinds of fossils.
trace, mold, cast, true-form
500
Name two nonrenewable natural resources.
oil, rocks, natural gas, coal
500
Name a mineral that is useful to people and tell how it is used.
Many answers here - some examples:
calcium - builds strong bones and teeth
gold - money and jewelry
silver - coins, jewelry, etc.
diamonds - drills, jewelry