TYPES OF ROCKS
Rocks formed from melted magma or lava.
What are igneous rocks?
This sedimentary rock smells like mud when it gets wet.
What is shale?
The material used in pencils instead of lead.
What is graphite?
Molten rock found beneath the Earth’s surface.
What is magma?
Plant and animal remains that have turned to stone.
What are petrified fossils?
Rocks formed from layers of sediment pressed together.
What are sedimentary rocks?
This metamorphic rock was once limestone.
What is marble?
The hardest natural substance on Earth.
What is diamond?
Decaying plant and animal material found in soil.
What is humus?
Fossils formed when mud hardens around an organism.
What are mold fossils?
Rocks changed by heat and pressure deep inside the Earth.
What are metamorphic rocks?
This metamorphic rock was often used to make chalkboards.
What is slate?
The most useful metal to humans.
What is iron?
A scientist who studies the structure of the Earth.
What is a geologist?
Scientists who study fossils.
What are paleontologists?
This igneous rock is very hard and often used in buildings.
What is granite?
This shiny black igneous rock has sharp edges.
What is obsidian?
The only metal that is liquid at room temperature.
What is mercury?
A rock that looks plain on the outside but has crystals inside.
What is a geode?
Fossils formed when minerals replace the original plant or animal material.
What are petrified fossils?
This light igneous rock is full of air holes and can float on water.
What is pumice?
This sedimentary rock is often used as a building stone and can form caves.
What is limestone?
The best conductor of electricity.
What is silver?
A person who explores caves.
What is a spelunker?
According to this curriculum, most fossils were formed during this event.
What is the Flood of Noah’s time?