Our+Changing+Earth

This series of activities will help you better understand and explain the concepts of geologic time, weathering and erosion. Before you begin...Do you know how big a billion is?

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 * STEP ONE**: Visit this site to put it into perspective:

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 * STEP TWO**: Now that you know how big a billion is, let's explore the age of the Earth (billions of years old) and how we know the history of our amazing planet! Follow the link below to learn more.

Worksheet:

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 * STEP THREE**: Watch the following video to help you understand how and why our earth is constantly changing.

Worksheet:


 * STEP FOUR**: Complete the following lab activities to demonstrate physical and chemical weathering and erosion.

Resource Links to help with the lab: Types of Erosion http://abe.www.ecn.purdue.edu/~agen521/epadir/erosion/types_erosion.html Weathering http://www.main-vision.com/richard/weatheri.html Erosion Slides http://pasture.ecn.purdue.edu/AGEN521/epadir/slides/erosion_slides.html Erasing Erosion http://www.mmhschool.com/student/science/mhscience/3/ngsm/ngsm.php3?unit=5&topic=2 Weathering and It’s Effects http://www.prairiehill.org/archpg/Kids/7th/earth/WEATHER.HTM

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 * STEP FIVE**: Your task is to work with your team to accomplish a task related to the changing of the earth's surface. The following site will be your project research resource.

__**Project Choices**__: Educational Powerpoint Pamphlet Using Publisher Poster or Tri-Fold Project Board Children's Textbook Informational Video Other Project (with prior approval)

__**Checklist:**__ Role Assignment Sheet: Research Worksheet Final Project Planning Worksheet Final Project- posted on wiki if in electronic format

__**Grading Rubric**__:

__**STEP SIX**__: Create a Glogster poster teaching others about the causes of erosion. You will need to create a team account using one person's foresthills login and password. Use your textbook and the Internet for your research.

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Once you are registered you can use this link to login: []

__**Poster Requirements**__: 1. List and describe each agent of erosion: wind, glaciers, running water and waves. 2. Use and define **IN CONTEXT** essential vocabulary words for the agents of erosion: weathering, erosion, mechanical weathering, ice wedging, chemical weathering, oxidation, sediment, deposition, gravity, runoff, tributary, flood plain, delta, stalactite, stalagmite, energy, potential energy, kinetic energy, abrasion, friction, glacier, beach, longshore drift, sand dune, deflation. 3. Include real-life pictures of each agent of erosion. Identify the place in the the world where this type of erosion takes place. 4. **BONUS**: Include pictures for vocabulary words. Identify the place in the world where this vocabulary world can be found.

__**Data Gathering Worksheet**__:

__**STEP SEVEN**__: Assessment 1. Students will take a group assessment: Structural Indexing (creating sentences) with the following vocabulary words: weathering, erosion, gravity, sediment, deposition, abrasion, glacier, waves, running water, wind, geologic time scale, relative dating, absolute dating, friction, law of superposition, fossil. 2. Students will work complete an individual assessment: Structural Indexing (creating sentences) with __**YOUR**__ choice of vocabulary words from the following list: weathering, erosion, gravity, sediment, deposition, abrasion, glacier, waves, running water, wind, geologic time scale, relative dating, absolute dating, friction, law of superposition, fossil, mechanical weathering, ice wedging, chemical weathering, oxidation, runoff, tributary, flood plain, delta, stalactite, stalagmite, energy, potential energy, kinetic energy, longshore drift, sand dune, deflation, rock cycle, sedimentary rock, igneous rock, metamorphic rock.

Group Participation Rubric