THE ROCK CYCLE Section 3 1 What happens

THE ROCK CYCLE Section 3. 1

What happens to sediment? Sing it. . • Weathering. . Break it down break it down • Erosion… move around • Deposition… settle down

Rocks are all around us, in the soil, our building, and they are used in industry. So, where do all these rocks come from? The answer is: other rocks. The oldest rocks on earth are 3. 8 billion years old, while others are only a few million years old. This means that rocks have to be recycled. The process in which rocks are recycled is the ROCK CYCLE in the rock cycle; time, pressure, and the earth’s heat interact to create 3 basic kinds of rocks.

Thought point… • What do you think the poverty cycle has to do with the article we read on Wednesday about happiness and income?

Sedimentary Rocks • 1. SEDIMENTARY ROCKS are formed as sediment (eroded rocks and the remains of plants and animals) builds up and is compressed.

Metamorphic Rocks • 2. METAMORPHIC ROCKS are formed when a great deal of pressure is applied to rock. This happens as sedimentary rocks sink deeper into the earth and are heated by the high temperatures found in the earth’s mantle.

Igneous Rocks • 3. IGNEOUS ROCKS are formed when rock is melted (by heat and pressure below the crust) into a liquid, and then resolidifies. The molten rock (MAGMA) comes to the surface of the earth and when it emerges it is called lava; solid lava is igneous rock.

PRACTICE • 1. LABEL THE STEPS OF THE ROCK CYCLE UNDER YOUR DRAWING

Partner Quiz! • Try without your notes, quiz each other. • Partner A: will answer a question and B will answer. If they get it right, they keep answering questions and HOLD ONTO your questions you got right! Now, when the get a question wrong, Partner B will then answer questions

So I hear you also like Page and Drake… • Did you know that Page (feat Drake) LOVE the rock cycle? !

Pop Quiz Write your name on a petal There is NO talking during this quiz 1. What does Intrusive mean? 2. What does Extrusive mean? 3. Sedimentary rocks have undergone 3 processes, D…. , C…. . - When you are finished, continue to sit silently and turn your flower over. • -

Term Definition Weathering is the breakdown of rocks into small pieces called sediment. It can be; can be physical or chemical Sediment is soil (tiny pieces of rock), sand, and minerals that are transported and deposited by wind and water Erosion is the movement of soil and rock material by agents such as water and wind Compactio n Cementatio n Melting Process by which sediments are squeezed together by the weight of overlying materials driving out water When sediments are compacted very tightly they eventually stick together to form new, sedimentary rock. Heat and pressure cause rocks to melt. Cooling When lava cools and hardens into igneous rock. Deposition Is when sediment stops moving (from erosion) and settles down/is deposited.

So I hear you also like Page and Drake… • Did you know that Page (feat Drake) LOVE the rock cycle? !

The Rock Cycle

The Rock Cycle Igneous Rock

The Rock Cycle Igneous Rock Compaction and Cementation

The Rock Cycle Igneous Rock Sedimentary Rock Compaction and Cementation

The Rock Cycle Melting Metamorphic Rock Sedimentary Rock Compaction and Cementation Igneous Rock

Just for Fun • https: //www. youtube. com/watch? v=53 l. Md. Hz v. GCQ

Homework: DRAW THE ROCK CYCLE