What role does WEATHERING play in the rock cycle?

Slides:

Advertisements

Similar presentations

Advertisements

Weathering & Soils Mr. Manzo.

Weathering and Erosion

 M INERALS MAKE UP MOST ROCKS  D IFFERENT MINERALS HAVE DIFFERENT PROPERTIES.  R OCKS ARE BROKEN DOWN TO FORM SEDIMENTS.

WEATHERING AND EROSION. WEATHERING Weathering is a type of erosion. Weathering happens when rocks are exposed to… – Atmosphere – Hydrosphere – Living.

Mechanical and chemical forces break down rock When you are walking in your neighborhood how do you think the small rocks are formed?

What Is Weathering? Weathering is the process that breaks down rocks into smaller and smaller pieces Weathering wears down mountains and breaks down statues.

Today’s Objective: WEATHERING Today’s Objective: Be able to explain the difference between mechanical & chemical WEATHERING. Science Starter: Read the.

Weathering Chapter 7.1 Earth-Environmental WZPP. WZPP ees 7.12 Introduction Read page 153 on Cleopatra’s needle and see figure 7-1.

Weathering Topic 9 Regents Earth Science. Weathering  The break down of rock material as a result of chemical and/or physical action.

Mechanical and Chemical. _ jpg

Weathering The natural breaking down of rocks and other materials on the Earth’s surface. A slow continuous process that affects all substances exposed.

1 9.1 Weathering. 2 Describe how potholes form. Describe how water flows down into cracks that form of potholes.

Physical Weathering Mechanical/ physical weathering: The physical breaking up of rock but does not change composition.

Journal9/14/15 1. How is the classification of rocks and minerals different from each other? 2. What are the differences between intrusive and extrusive.

Unit 1 Lesson 2 Weathering

Chapter 14: Weathering.

What role does WEATHERING play in the rock cycle?

Weathering, Erosion, and Deposition

Rock Cycle Unit 3 – What is weathering

Weathering – the physical & chemical breakdown of rocks.

The Shape of the Earths Surface

Notes Weathering.

Do Now: While watching the following clip answer the following:

Weathering, Erosion, and Soil

Mechanical and chemical forces break down rock

Mechanical & Chemical Weathering

Chapter 12 Weathering The breakup of rock due to exposure to processes on the Earth’s surface.

AIM: What is Weathering?

Weathering and Erosion

Weathering – the physical & chemical breakdown of rocks.

Weathering, Erosion, and Soil

Weathering & Soil Formation

Physical (Mechanical) and Chemical Weathering

Weathering of Rocks Weathering - Breakdown of rocks into pieces (sediment) 2 main types of weathering to rocks Mechanical weathering requires physical.

AIM: DO NOW: HW:.

Weathering Chapter 5.1.

Weathering and Erosion

Weathering and Erosion

Bell Ringer What kind of rock is formed by applying heat and pressure to existing rock? What would be required to turn a sedimentary rock into an igneous.

Weathering and Erosion

Chapter 7 – Weathering and Erosion

LO: What is Weathering? Do Now: Write Lab #19..

Rocks & Weathering Chapter 3.

Weathering and Erosion

Physical and Chemical Weathering pg 70-79

TOPIC IX: WEATHERING AND EROSION

Weathering & Erosion.

Weathering Chapter 5.1.

Weathering. Weathering Weathering is the physical and chemical breaking down of rock material into smaller fragments due to exposure to processes that.

Lechuguilla Cave, New Mexico Types of Weathering

Weathering And Erosion

Bell Ringer What processes form igneous rocks? Sedimentary? Metamorphic? I will hand back quizzes at the end of class. Please remind me! Make up quizzes.

Bellringer What processes form igneous rocks? Sedimentary? Metamorphic?

AIM: What is Weathering?

9.1 Weathering.

AIM: DO NOW: HW:.

AIM: What is Weathering?

What do These 3 Things Have in Common?? Statue Grand Canyon Sand Pile.

Weathering And Erosion

Weathering and Erosion

Presentation transcript:

What role does WEATHERING play in the rock cycle? The SHOWDOWN! Weather vs. Rock! Who wins? The Rock Cycle... ESRT p 6 What role does WEATHERING play in the rock cycle? It changes ANY TYPE of rock into sediments!

and the ________________ Weathering... The breakdown of ROCK into SEDIMENTS Lithosphere Weathering happens when the ____________ is exposed to the _________________ and the ________________ Atmosphere Hydrosphere Weathering: Rocks are exposed to weather!

Weathering... Two Types Chemical Weathering EXAMPLES Oxidation Rocks break down when chemical reactions change their composition EXAMPLES Oxidation Hydrolysis Minerals react with oxygen in the air Minerals react with water

Chemical Weathering... Cleopatra’s Needle The symbols dissolved in the humid weather of NYC!

Weathering... Physical Weathering… aka mechanical weathering EXAMPLES Rocks break down into smaller pieces BUT DO NOT change composition…they just get smaller! EXAMPLES Exfoliation Abrasion Rock breaks off in layers from pressure release Rocks wear away by wind, streams Wedging Ice or roots expand cracks in rocks

Physical Weathering... Exfoliation Rock breaks off in layers from pressure release Mt Haystack, NY

Physical Weathering... Wilmington, NY

Physical Weathering... Root Wedging Root grows in crack and splits the rock WIDE OPEN! Blue Mountain Lake, NY

Weathering Summary What is weathering? What is the main difference between chemical and physical weathering? Both types of chemical weathering do what? All types of physical weathering do what? Which type of weathering do you think we mostly have here in Pittsford? Explain…

Weathering Factors... Climate... MOST IMPORTANT FACTOR Weathering rate depends on the WEATHER! WHY? Weathering happens faster in ____________ climates Weathering happens slower in _________ climates WARM and HUMID COOL and DRY

OTHER Weathering Factors... Rock type Igneous vs. Sedimentary Which type weathers faster? Usually sedimentary Made of sediments cemented together that can be separated! WHY? Igneous rocks have inter-grown crystals

OTHER Weathering Factors... Particle Size OR Which size weathers faster? WHY? Smaller particles have greater exposed surface area

Weathering... SUMMARY 1. Two types of WEATHERING... 2. How does CLIMATE affect weathering?... 3. How is rock type a weathering factor... 4. Which rock will probably weather faster in the same climate, shale or sandstone? Why? 5. Choose a rock and explain where and why it would weather very slowly...

Weathering in our area… What kind of WEATHERING do WE have? Mostly Physical... WHY? POTHOLE Lots of precipitation/humid Frost wedging causes potholes! Water in the pavement freezes and cracks the road. Cars break the cracks!

Weathering in New York State… 1895, Frederick Douglass Rochester, NY 115 years old and still looks good! How is that possible? Probably made from tough, weather-resistant granite!

Weathering in New York State… 1895, Harold McWillie Rochester, NY Same age and Douglass’ REALLY WEATHERED! What made the difference? Made of limestone!

Weathering in other areas… Great Sphinx, Egypt 3000 B.C.E. Made of limestone! What made the difference? Dry climate, less pollution!

Weathering… Cleopatra’s Needle, Egypt (1500 BCE) Still in great shape! Dry climate, not much pollution!

Weathering… Cleopatra’s Needle, NYC (1500 BCE) What made the difference? Humid climate, pollution, acid rain dissolved the linestone!

Weathering... Weathering Video! SUMMARY How can a 150 year old tombstone still have clear lettering? How can a newer 50 year old tombstone be almost unreadable? How is it possible for 5000 year old statues in Egypt to still look fresh? How might global warming and acid rain affect weathering rates in New York State? Weathering Video!