Layers and Rocks
This is the hard, outer layer of the Earth where we live.
What is the crust?
These are preserved imprints or remains of plants and animals from long ago.
What are fossils?
Large areas of land on Earth are called these.
What are continents?
Hot, melted rock under the ground that can come out of volcanoes is called this.
What is magma?
A scientist who studies rocks and Earth is called this.
What is a geologist?
Tiny pieces of dirt and rock that can press together to make sedimentary rock.
We learn that dinosaurs lived long ago because of this kind of evidence found in the ground.
What are fossilized bones?
Large bodies of salt water that cover much of Earth are called these.
What are oceans?
When magma reaches Earth’s surface and pours out, it is called this.
What is lava?
The day-to-day conditions of sunlight, wind, rain, and temperature are called this.
What is the weather?
Rocks formed when tiny pieces of dirt and rock are pressed together over time are called this.
What are sedimentary rocks?
When something is kept safe so it does not change, we say it is this word.
What is preserved?
The imaginary line that goes around the middle of Earth and divides north and south is called this.
What is the equator?
A sudden push or squeeze from weight that presses on something is called this.
What is pressure?
True or False: A geyser is an eruption of lava.
What is False? A geyser erupts hot water and steam.
Name the three main groups all rocks can be placed into.
What are igneous, sedimentary, and metamorphic?
This word means “no longer living anywhere on Earth,” like dinosaurs.
What is extinct?
The outside part of Earth where we live — land, water, and air — is called this.
What is the surface?
This word describes something that can cause damage when lava and ash cover the land.
What is destructive?
When something is solid, it keeps its own shape and does not take the shape of a container.
What is solid?
This is the very center of the Earth; scientists think it is a solid ball of metal.
What is the inner core?
People who study Earth’s past by looking at rocks.
What is geologists?
When wind or water wears away rock and soil and moves it to new places, this process is happening.
What is erosion?
Changes that happen deep inside Earth from heat and pressure can turn rocks into new kinds called this.
What are metamorphic rocks?
Name one way scientists learn about Earth’s past.
What is studying rocks and fossils?