Turbidity and Erosion A Water Quality Issue

1. Turbidityand ErosionA Water Quality Issue

2. What would you like to work on today Scientist (insert name of student)Turbidity and Erosion A. What is Turbidity? START! B. The Erosional Force of Water, Factors?START! C. What is in the Water? START! D. Why is it Important?

3. Scientist: name of student A Date:date of last update Welcome to the Study of Turbidity and Erosion Activity 1:More Turbid, Less Turbid Rivers Activity 2: Add, Eliminate Solids Activity Insert and Introduce a character who provides some guidance and/or audio support for content. Give it a name. The character will be Brad Reed (the water enthusiast from Betsy’s presentation). He gives them the following instructions: “Start working on either activity one or two. At the end of each activity, type in your observations. As you work your way through the activities, you might have questions. Record them by clicking on the “I wonders”.

4. Scientist: name of student Date:date of last updateA Activity 1More and Less Turbid Rivers Insert two pictures. One of the pictures shows a river with more turbidity (more solids, less clear water) like the Mississippi river. Another one shows a river with less turbidity (fewer solids, water is clear and ss can see fish and vegetation). The character asks students to drag the signs to corresponding pictures. One of the signs says “more turbidity” and the other one says “less turbidity”. Character shows either a happy face or an unhappy face. Students keep trying and then go to Observations. Type my Observations More Turbidity Less Turbidity I Wonder...

5. Scientist: name of student Date:date of last updateAActivity 2Eliminate, Add Solids Continue my Work Type my Observations Eliminate Solids Add Solids I Wonder...

6. Scientist: name of studentA Date:date of last update My Observations Observe, Think and Type, With More Turbidity I see ______________________________________________________________________ With Less Turbidity I see ______________________________________________________________________ Click to go back to these activities: Activity 1: More Turbid and Less Turbid Rivers Activity 2: Add, Eliminate Solids Activity Definition Continue my Work, actv 1

7. Parts of the Word Turbidity Think about the worddisturb Read Don’t disturb the fish. They will get scared. Visualize in your head the example Can you find a part of the wordturb-id-ity? Disturb

8. Scientist: name of studentA Date:date of last update Other words Related to TurbidityDefinition ______________ ______________ ______________ ______________ ______________ Go To My Observations Continue my Work

9. Scientist: name of student Date:date of last updateAA Study of Turbidity and Erosion Water Quality Problems • turb-id-ity • What do you think turbidity means? Use your observations and the words you wrote ________________________________________________________________________ Go To My ObservationsBack to My Words Continue my Work

10. Words you don’t understand Word #1 ____________ How did you figure it out? ____________ Word #2 ____________ How did you figure it out? ____________ HELP! Scientist: name of studentA Date:date of last update of Piece #1 Turbidity Try to order the words to create the definition Scientists use, Turbidity in solids amount is suspended the water.

11. Words you don’t understand Word #1 ____________ How did you figure it out? ____________ Word #2 ____________ How did you figure it out? ____________ HELP! Scientist: name of studentA Date:date of last update Turbidity is the amount of solids suspended in water. Use your own words, A-mount of Solid-s ______________________________ ______________________________ Sus-pend-ed in water ______________________________ ______________________________ Continue my Work

12. Help with Words Look the word up in the dictionary Use context Find the same word in a different text(Acc to Jenkins…, 1984, students need to be exposed to a word at least six times before they have enough experience with the word to determine and recall its meaning- Can we provide students with a tool in which students enter a word and the computer finds that word in different texts and presents them for student to analyze?) Create a visual image to help remember the word Powel, 1980 found that instructional techniques incorporating the use of imagery resulted in achievement gains in word knowledge that were 34 percentile points higher than techniques that did not) Ignore the word (not necessary for understanding the text) Find words I know in the word Use

13. Finding Words in the Word A-mount mount-ain Solid-s Sus-pend-ed Pend-ulum Back to Work

14. Paraphrasing and rereading strategies are important to develing a solid representation of the textbase (according to Cote, et al, 1998)

15. Scientist: name of studentA Date:date of last update Your definition for turbidity,(SS’ definition from previous slide inserted here)Now the scientists’ definition,Turbidity is the amount of solids suspended in water.What do you think about your definition and why?__________________________________________________________________

16. Remember the Poplar Island! The Island was disappearing, why? Type your ideas here,(ideas from Kay’s/erosion) ___________________________________ (Insert picture of Poplar Island) Is the Poplar Island disappearance related to turbidity and erosion? Why? ________________________________________ YES! NO!

17. End of Activity A Main Menu

18. Scientist: name of studentB Date:date of last update What Causes Turbidity?The Erosional Force of WaterPicture of river and the water removes materials from the stream channel. Students click on a button which makes the river start flowing. As the river flows Students will be able to observe how the water removes materials from the channel of the river. Students can click several times to make water run faster (from slideMy Observations

19. Scientist: name of studentB Date:date of last update The Erosional Force of WaterFrom freefoto.com Precipitation Waste, Garbage, Sewage Types of Material River Traffic Construction Slope

20. Scientist: name of studentB Date:date of last update The Erosional Force of WaterAre these NATURAL or HUMAN factors?From freefoto.com Precipitation Waste, Garbage, Sewage Types of Material River Traffic Construction Slope

21. Scientist: name of studentB Date:date of last update Factors Affecting the Erosional Force of WaterNATURAL HUMANFinishedFrom freefoto.com River Traffic Types of Material Waste, Garbage, Sewage And Construction Precipitation Slope

22. Scientist: name of studentB Date:date of last update The Erosional Force of Water MATERIALS the River Flows ThroughBack to Menu of Factors Hard Rock (Granite) Looser material (Soil) Think! What’s the Difference

23. Scientist: name of studentB Date:date of last update What Causes Turbidity? PRECIPITATION AND SLOPEBack to Menu of Factors

24. Scientist: name of studentB Date:date of last updateWhat Causes Turbidity?Natural Factors Picture of a river. Two buttons. One of them is for altering the amount of rain fall. The other one is for changing the slope. Both variables affect velocity. More rain, more weight, more erosion. More slope, more gravitational force, more velocity as well. As students increase the amount of rain falling, more water will accumulate in the river, more materials will be dissolved from channel. Therefore, more solids will be suspended in the river= more turbidity. As students increase the slope, the water moves faster because of the gravitational force. This causes more materials to be dissolved from channel and the turbidity increases. Back to Menu of Factors Increase Rain Fall Increase Slope Decrease Slope Decrease Rain Fall

25. Scientist: name of studentB Date:date of last update What Causes Turbidity? RIVER TRAFFICBack to Menu of Factors More River traffic More erosion More Turbidity

26. Scientist: name of studentB Date:date of last update What Causes Turbidity? HUMAN WASTE INDUSTRIAL WASTE GARBAGE AND SEWAGE CONSTRUCTION Back to Menu of Factors

27. End of Activity B Main Menu

28. Scientist: name of student A My Observations Observe, Think and Type, More Velocity… ______________________________________________________________________ Less Velocity… ______________________________________________________________________ Click to go back to these activities: Activity 1: Natural Factors Activity 2: Types of Materials the River Flows Through Continue my Work

29. Scientist: name of studentC Date:date of last update What is in the Water?What do you Think? SOLIDS The solids in the water might be _______________________________________________________________________________________

30. Scientist: name of studentC Date:date of last update What is in the Water? Decomposing Plants and Microorganisms Industrial Waste Human Waste, Garbage and Sewage Construction Waste Small pieces of Soil Animal Waste

31. Classify your Questions • Read the Questions you Have Asked, • (Insert student’s questions from Laurie’s components) • 2. Sort Your Questions and Add New Ones,(student drags questions. This will help students keep their questions in mind and recognize answers as they work through the activities) • Continue my Work Other Questions Questions related To TURBIDITY

32. Students’ metacognitive knowledge of a reading and scientific task involves being aware of whether they understand the material they are reading or the activity they are performing. Students’ metacognitive regulation of the two tasks enables them to take corrective action if they do not understand the material they are reading or the science activity they are performing (Padilla, Muth and Padilla, 1991), p. 242 Crossing Borders book.