DO NOW What is the difference primary and secondary succession? Date: 7th Grade Science April 7, 2014 Date: 04/04 Reminders: Homework Due Friday This week – End of 5th Six Weeks What is the difference primary and secondary succession?

ESSENTIAL QUESTION: How do natural forces affect the Earth’s surface? OBJECTIVES: -Finish Mt. St. Helens notes -Define climax community.

Succession in Nature Mount St. Helen's As you watch the video, answer the questions provided

Succession Succession in Action

SUCCESSION- CORNELL NOTES pg 143 Main Idea Details/Definitions Summary

Flip Book Cut your pieces Put them in order Staple once on the side Write a description of what was is happening in each scene

Wind Secondary Succession Climax Community Secondary Succession Pioneer species enter Wind Start Secondary Succession Disturbance Secondary Succession Pioneer species begin to grow Secondary Succession Disturbance Secondary Succession Pioneer species + other species begin to grow Secondary Succession Disturbance Secondary Succession A new community of organisms is being established Secondary Succession Most life eradicated; some seeds may remain in soil Secondary Succession New climax community is established End

Bare rock is exposed due to some type of disturbance like a retreating glacier or volcanic eruption. No soil is present. Pioneer species, like lichens and mosses, establish themselves on the rock substrate. Pioneer species die and decay, providing soil and nutrients for other plant species like shrubs and small trees. Small and Large trees begin to grow, and the community reaches an equilibrium or balance. This results in a climax community. Primary Succession: The establishment of new community where none existed before.

opDA Pioneer Species: Lichens

Climax Community Stable, end stage of ecological succession in which organisms use resources efficiently and balance is maintained.

Organisms are driven away or killed by some type of disturbance, like a forest fire, leaving behind only the soil. Pioneer species, like grasses and weeds, begin to grow from the soil. Roots and seeds left over may also begin to grow again. Some pioneers species die and are replace or outcompeted by other species like shrubs and small trees. Small and Large trees begin to grow, and the community reaches an equilibrium or balance. This results in a climax community. Secondary Succession: The reestablishment of community following disturbance.

Habitat Vocabulary pg 109 Primary Succession- when an area regrows after a disturbance has removed all plants and SOIL Secondary Succession- when an area re-grows itself after a disturbance has removed all plants and the soil still remains Pioneer Species- the first species to start growing in an area Climax Community- when an area has grown into a stable community

Climax Community Stable, end stage of ecological succession in which organisms use resources efficiently and balance is maintained.

All Mt. St. Helens images courtesy of University of Washington Year Zero Volcano Forest Fire All forest fire images Courtesy of US Forest Service Rocky Mountain Research Station All Mt. St. Helens images courtesy of University of Washington

Year Eight Volcano Forest Fire

Year Twelve Volcano Forest Fire

Year Seventeen Volcano Forest Fire

Year Twenty Volcano Forest Fire

Succession- Short Clip

DO NOW Date: 4/5 Why is succession beneficial for some habitats?

ESSENTIAL QUESTION: How do ecosystems change over time? OBJECTIVES: -Properly identify the order of primary and secondary succession

Succession- Short Clip

Succession Cards -Primary Succession -Secondary Succession Put the cards in order of the events that will occur in the ecosystem.

Bare rock is exposed due to some type of disturbance like a retreating glacier or volcanic eruption. No soil is present. Pioneer species, like lichens and mosses, establish themselves on the rock substrate. Pioneer species die and decay, providing soil and nutrients for other plant species like shrubs and small trees. Small and Large trees begin to grow, and the community reaches an equilibrium or balance. This results in a climax community. Primary Succession: The establishment of new community where none existed before.

Organisms are driven away or killed by some type of disturbance, like a forest fire, leaving behind only the soil. Pioneer species, like grasses and weeds, begin to grow from the soil. Roots and seeds left over may also begin to grow again. Some pioneers species die and are replace or outcompeted by other species like shrubs and small trees. Small and Large trees begin to grow, and the community reaches an equilibrium or balance. This results in a climax community. Secondary Succession: The reestablishment of community following disturbance.

Mount St. Helens

Mt. St. Helens

Succession Quiz Keep Voice at level 0 You may use any of your notes to help you answer questions

DO NOW How does soil form over time? Date: 04/06 04/07 7th Grade Science April 8, 2014 Date: 04/06 04/07 How does soil form over time?

ESSENTIAL QUESTION: How do natural forces affect the Earth’s surface? OBJECTIVES: -Rock Shake Lab -Demonstrate mechanical and chemical weathering

Uncovering Student Ideas 7th grade science Uncovering Student Ideas Tape on page ____. Read the scenario. Answer the question. Dark Matter

Uncovering Student Ideas 7th grade science Page Uncovering Student Ideas Turn and talk What did your partner say about where beach sand comes from? Dark Matter

7th grade science BrainPop Weathering Dark Matter

Weathering- breaking down of rock over time. 7th grade science Definitions Weathering- breaking down of rock over time. Dark Matter

7th grade science Definitions Mechanical weathering-breaking down rock into smaller rocks by water, ice, wind, and organisms. A physical change of rock. Dark Matter

7th grade science Definitions Chemical weathering- breaking down rock through chemical changes. The rock is changed into a new substance because it reacts with water, oxygen or other substances. Dark Matter

7th grade science BrainPop Erosion Dark Matter

Erosion-the carrying away of rock or sediments. 7th grade science Definitions Erosion-the carrying away of rock or sediments. Wind, water, and ice carve out Canyons and Valleys . Dark Matter

Deposition - the dropping off of sediments or rock to a new location. 7th grade science Definitions Deposition - the dropping off of sediments or rock to a new location. Deposition creates landforms like deltas, sandbars, or sand dunes. Dark Matter

Complete the Frame Routine using the text. 7th grade science Frame Routine Gateways: page 133 Complete the Frame Routine using the text. Dark Matter

Frame Routine . 7th grade science Weathering Erosion Deposition Dark Matter

How are Weathering, Erosion, and Deposition related to one another? 7th grade science Exit Ticket How are Weathering, Erosion, and Deposition related to one another? Dark Matter

If__________, then_____________. 7th grade science Page Shake Rattle and Roll In your notebook: Objective: To examine and compare the chemical and mechanical weathering of limestone and granite rocks. Hypothesis: Predict whether or not limestone or granite will experience the most weathering. If__________, then_____________.  

Shake Rattle and Roll Procedure: 7th grade science April 27th Shake Rattle and Roll Procedure: Place 1 piece of limestone and one piece of granite on your timeline. Make observations in your comp book. Add all rocks to the container. Fill container with water. Shake the rocks vigorously for a total of 15 minutes. Remove 1 granite rock and 1 limestone rock every 3 minutes. Place them on your timeline, record observations on your timeline.  

Shaking Time (minutes) 7th grade science Page Shake Rattle and Roll   Type of Rock Shaking Time (minutes) 0 minutes of shaking 3 minutes of shaking 6 minutes of shaking 9 minutes of shaking 12 minutes of shaking 15 minutes of shaking Limestone Granite

Shake Rattle and Roll In your notebook answer the following: 7th grade science Page Shake Rattle and Roll In your notebook answer the following: Conclusion Was your hypothesis correct? How do you know? What does that tell you about limestone and granite?  

Chemical Weathering Page Add 5 drops of HCl (Hydrochloric Acid) to the granite. Add 5 drops of HCl to the limestone. Record your observations. What is happening?

Clean Up A Make sure all water is poured out into the sink B Return Materials C Wipe off desks D Check and clean floors around desk

Appalachian Mountains 7th grade science Page LAB ANALYSIS QUESTIONS   Weathering of rock can be described as… There are two different types of weathering… Which mountain range is older? Please use evidence from the lab to back up your answer. DRAW an example of Weathering, Erosion, and Deposition. Rocky Mountains Appalachian Mountains

DO NOW April 9-10, 2014 7th Grade Science Date: 04/08 Reminders: DO NOW: What is the difference between mechanical and chemical weathering?

How do natural forces affect the Earth’s surface? OBJECTIVES: April 9-10, 2014 ESSENTIAL QUESTION: How do natural forces affect the Earth’s surface? OBJECTIVES: -Visit Succession plot for final observations -Erosion Time Lapse Video -Stream Table Lab -Discuss real world examples of erosion and deposition

Succession Plot Check-In Week 2 Reminder of Outside Expectations: Voice Level 1-2 (Voice Level 0 in Hallway) No wandering Stay on Task

Succession Plot Week 2 Check-In After 2 Weeks Abiotic/Biotic Factors Conclusion: How has your plot changed in the last 2 weeks? What type of succession occurred? Do you think any weathering, erosion, or deposition occurred? Why?

Timelapse: Erosion Timelapse Video: Waves Eroding Land on the Coast

Stream Table Lab Today you will investigate the effect that forces of nature have on the earth’s surface using a stream table.

Stream Table Lab A- Data Recorder B- Lab Manager C-Stream Table Setup D-Materials Manager

Stream Table Clean-Up Do NOT pour sand down the drain. It will clog! Drain water as much as possible, then pour dirt/sand into waste contained provided by teacher.

Stream Table Lab Debrief: Where did you see erosion occurring? Where did the Deposition occur? What real life landforms were represented in your stream table? Where does Weathering fit in all of this?

Before and After Hurricane Andrew (1992) July August

Before and After Before & After: Hurricane Sandy Before & After: U.K. Flooding (2014)

Comic Strip (Exit Ticket) Directions: Draw a comic strip that demonstrates how a mountain could morph (change) into sand on the beach over time. Label your scenes with the words: Weathering Erosion Gravity Deposition

DO NOW Date: 04/11 Reminders: DO NOW: April 11, 2014 7th Grade Science Date: 04/11 Reminders: DO NOW: How is it possible to have such a difference in color in these two beaches?

How do natural forces affect the Earth’s surface? OBJECTIVES: April 11, 2014 ESSENTIAL QUESTION: How do natural forces affect the Earth’s surface? OBJECTIVES: -Rockies vs. Appalachian Mtns. -Revisit “Beach Sand” -Photo Gallery Walk

7th grade science Turn in Homework Homework Due! Dark Matter

Appalachian Mountains 7th grade science Weathering, Erosion, Deposition Review   Turn and Talk: Why do the Rockies and Appalachian Mountains look so different? Rocky Mountains Appalachian Mountains

Uncovering Student Ideas 7th grade science Page Uncovering Student Ideas Find the page you completed Monday. Reread the scenario. Decide whether you agree with your previous answer. Write a paragraph on the next page explaining why you agree or disagree. Dark Matter

Can you picture it? Picture # (5-21) Weathering, Erosion or Deposition Agent of Change (water, wind, gravity) and how do you know?