Earth Science Picture Flashcards Part One Askew – 5th Grade

Try to name the layers of the earth. Click to reveal.

Alfred Wegener developed a theory that Earth’s continents were once part of a supercontinent named _____________________. According to his theory, this supercontinent broke apart and the landmasses drifted apart becoming the continents we know today. This is known as continental drift. Pangea

Try to name the three types of plate boundaries in the diagram Try to name the three types of plate boundaries in the diagram. Click to reveal the answers. Plate Boundaries

What types of plate boundaries form mountains? CONVERGENT What types of plate boundaries form mountains? When continental crust pushes against continental crust, large mountain ranges are formed like the Himalayan Mountains.

What type of plate boundary causes this to happen? CONVERGENT What type of plate boundary causes this to happen? ____________?____________is the process in which one plate is pushed downward beneath another plate into the underlying mantle when plates move towards each other.  Subduction

What type of plate boundary created the mid-ocean ridge and causes seafloor spreading? DIVERGEN T

What forces build up the earth? Constructive Forces What forces build up the earth?

What forces break down the earth? Destructive Forces What forces break down the earth?

Weathering Erosion Deposition ____________ breaks down rock. Weathering _________________ moves rock or carries it away. Erosion _________________ depoits rock or lays it down in a new place. Deposition

PHYSICAL or CHEMICAL WEATHERING?

PHYSICAL or CHEMICAL WEATHERING? Carbonation occurs when carbon dioxide interacts chemically with minerals. When carbon dioxide is dissolved in water, it forms weak carbonic acid. This acid dissolves large masses of limestone, creating caves and caverns.

PHYSICAL or CHEMICAL WEATHERING?

PHYSICAL or CHEMICAL WEATHERING?

PHYSICAL or CHEMICAL WEATHERING? Lichens are types of plants that secrete or give off a weak acid. Over time, this acid dissolves rock and wears it away.

PHYSICAL or CHEMICAL WEATHERING?

Rocks can be broken down by animals burrowing into rocks. PHYSICAL or CHEMICAL WEATHERING? Rocks can be broken down by animals burrowing into rocks.

PHYSICAL or CHEMICAL WEATHERING? Oxidation occurs when oxygen interacts chemically with minerals. For example when a nail rusts, oxygen combines with the iron in the nail to form iron oxide. The same happens with rocks that have iron.

Look at the pictures in the next few slides Look at the pictures in the next few slides. Name the agent of erosion at work.