1. DO NOW
Date:
4/11
Why is succession beneficial for some habitats?

2. ESSENTIAL QUESTION:
How do natural forces affect the Earth’s surface?
OBJECTIVES:
-Test on Succession, Abiotic/Biotic Factors, Symbiosis

3. Test
Voice Level 0
Read or Work on Classwork when finished

4. Uncovering Student Ideas
7th grade science
Page
Uncovering Student Ideas
Turn and talk
What did your partner say about where beach sand comes from?
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5. 7th grade science
BrainPop
Weathering
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6. Weathering- breaking down of rock over time.
7th grade science
Definitions
Weathering- breaking down of rock over time.
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7. 7th grade science
Definitions
Mechanical weathering-breaking down rock into smaller rocks by water, ice, wind, and organisms. A physical change of rock.
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8. 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.
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9. 7th grade science
BrainPop
Erosion
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10. 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 .
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11. 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.
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12. Complete the Frame Routine using the text.
7th grade science
Frame Routine
Gateways: page 133
Complete the Frame Routine using the text.
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13. Frame Routine . 7th grade science Weathering Erosion Deposition
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14. 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?
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15. DO NOW
Date:
4/12 and 4/13
What is the difference between weathering and erosion?

16. 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_____________.

17. 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.

18. 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

19. 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?

20. 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?

21. 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

22. 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

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

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

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

26. 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.

27. 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?

28. Before and After
Hurricane Andrew (1992) July August

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

30. 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

31. 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

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