C1.1 -1.2 Layers of the Earth

Glacier deposits found near the ______ support the theory that continents were once connected.

The rigid outer shell of the earth that contains rock, soil, and minerals is the _____________.

Plate tectonics is a ________________ supported by scientific evidence.

Plates at a ___________ plate boundary spread apart.

There are about twenty large sections of earth's crust and mantle called _____________.

The coolest part of earth is the ___________________.

The MAIN gases that surround the earth DO NOT include ____________.

Scientists believe earth's continents began to separate about _________ years ago.

The gases that surround the planet make up the _______________.

The liquid nickel and iron part of earth is the ___________________.

The part of the earth that includes oceans, rivers, lakes, and glaciers is the _______.

The top layer of earth is the ___________________.

______________ causes friction and pressure, and can lead to earthquakes and tsunamis.

Why is the earth's inner core solid?

The solid inner part of earth is the ___________________.

Earth's crust is thickest __________.

Water covers about _____________ of the earth's surface.

The middle layer of earth is the ___________________.

Mines and mountains are both a part of the earth's ____________________.

True or False: Oceanic crust is less dense than continental crust.