Rocks and Minerals
This rock is formed from the cooling and solidifying of lava.
Igneous rock.
Earth Day is celebrated every year on this date.
April 22.
This is the outermost layer of the Earth.
The Crust.
This natural wonder, located in the U.S., is a massive canyon carved by the Colorado River.
The Grand Canyon.
This symbol represents the recycling process and is made of three arrows in a triangular shape.
The Recycling Triangle.
What type of rock can have fossils in it?
Sedimentary rock.
Earth Day was first celebrated in this year.
1970.
What is the very center of the Earth called?
The Core.
This famous waterfall on the border of Canada and the U.S. is one of the largest in the world.
Niagara Falls.
This material is the most commonly recycled item in the world.
Paper.
What kind of rock forms from heat and pressure?
Metamorphic rock.
This city hosted the first Earth Day event in 1970.
New York City.
This layer is between the Earth’s crust and core, made of hot, soft rock.
The Mantle.
This mountain range stretches across North America and includes peaks such as Mount Everest.
The Himalayas.
This form of energy, considered green and renewable, is generated from sunlight.
Solar power.
What is the name of the hardest natural mineral on Earth?
Diamond.
This U.S. state was the first to recognize Earth Day as an official holiday in 1970.
California.
What solid, very hot layer is in the middle of the Earth?
The Inner Core.
What giant rock faces with U.S. presidents are carved into a mountain in South Dakota?
Mount Rushmore.
What color bin is usually used for recycling?
Blue.
What do you call someone who studies rocks?
A geologist.
This U.S. president established Earth Day as an official national observance.
Richard Nixon.
The layer responsible for generating Earth’s magnetic field.
The Outer Core.
What ancient stone monument is found in England and is made of huge standing rocks?
Stonehenge.
What do the three arrows in the recycling symbol stand for?
Reduce, Reuse, Recycle.