Collected Distillation of Wood Reports - collected them individually and checked off names to be sure I got all the papers.
Students drew "Advice" posters for anyone doing the lab in the future. I collected them and read them all to the class - you need to follow this same advice when you do the Sludge Project.
Explained how to use the microscope to look at the salt crystals.
Demonstrated how to find the density of the gravel.
Students finished the Separation of Mixture Lab by looking at the crystals and finding the density of the gravel and the density of the slag.
When done with the lab, students handed in the sheet.
Student got the yellow textbooks and worked on RA 2.1a.
Tuesday, March 10, 2009
Monday, March 9, 2009
Monday, March 9, 2009 - Block 4B
Collected Distillation of Wood Reports - collected them individually and checked off names to be sure I got all the papers.
Students drew "Advice" sheets for anyone doing the lab in the future. I collected them and read them all to the class - you need to follow this same advice when you do the Sludge Project.
Explained how to use the microscope to look at the salt crystals.
Demonstrated how to find the density of the gravel.
Students finished the Separation of Mixture Lab by looking at the crystals and finding the density of the gravel and the density of the slag.
When done with the lab, students handed in the sheet.
Student got the yellow textbooks and worked on RA 2.1a.
Students drew "Advice" sheets for anyone doing the lab in the future. I collected them and read them all to the class - you need to follow this same advice when you do the Sludge Project.
Explained how to use the microscope to look at the salt crystals.
Demonstrated how to find the density of the gravel.
Students finished the Separation of Mixture Lab by looking at the crystals and finding the density of the gravel and the density of the slag.
When done with the lab, students handed in the sheet.
Student got the yellow textbooks and worked on RA 2.1a.
Friday, March 6, 2009
Thursday, Mar 5, 2009 - 4A
Reminded students that the write-up for the Distillation of Wood Lab is due next Tuesday. The lab should be typed but if they cannot type it then it must be very neatly hand written.
Reminded students that they should be writing a bit each night so that it doesn't come down to a massive amount of work at the end that they will rush to finish, or not be able to finish. By now students should be at least 75% of the way done. They should have completed:
.Cover page
.General Statement of Lab
.Designing the Investigation for Day 1 (Material list, Procedure, Full page diagram, Safety precautions)
.Collecting and Presenting Data for Day 1 (8 observations, data table, calculation section)
.Analyzing and Interpreting Data for Day 1 - Flow chart for Day 1 including what substances go into each box, what phase you have for each substance (solid, liquid, gas), what processes are indicated by the arrows and whether each process indicates a physical change or a chemical change.
.Designing the Investigation for Day 2 (Material list, Procedure, Full page diagram, Safety precautions)
Students should be working on the Summary for Day 1
. Summary: Summarize the results of your experiment in complete sentences.
. Questions:
. Conclusion: State a conclusion for your lab. Does this lab in any way relate to your life?
. Errors and Uncertainties
. Followup
Students also need to complete the write-up for Day 2 including
.Observations for Day 2 (at least 4)
. Analyzing and Interpreting Data - Flowchart summary of Day 2 of the experiment
. Summary
. Questions:
. Conclusion: State a conclusion for your lab.
. Errors and Uncertainties
. Followup
I answered any questions students had on the lab.
Students can get 2 extra credit points if they include a section on their cover sheet for their parents to sign verifying that they have read the report.
-------
Told students about the Sludge project and how it is a combination of 8 labs: (separation labs and identification labs)
Students need to keep notes on all of our preparation labs and keep the lab sheets so they will know what to do when they have to do the same labs for sludge.
Today we will do another separation lab with a bit of identification at the end.
Went through the procedure for the separation of a mixture lab, clearly telling students where to put all the substances they identify. For today, they should do everything except view the crystals under the microscope which will have to wait until the water has evaporated. If students do not finish the density analysis of the gravel and slag they can complete that next time.
Students did the Separation of the Mixture Lab and handed in their lab sheets.
Reminded students that they should be writing a bit each night so that it doesn't come down to a massive amount of work at the end that they will rush to finish, or not be able to finish. By now students should be at least 75% of the way done. They should have completed:
.Cover page
.General Statement of Lab
.Designing the Investigation for Day 1 (Material list, Procedure, Full page diagram, Safety precautions)
.Collecting and Presenting Data for Day 1 (8 observations, data table, calculation section)
.Analyzing and Interpreting Data for Day 1 - Flow chart for Day 1 including what substances go into each box, what phase you have for each substance (solid, liquid, gas), what processes are indicated by the arrows and whether each process indicates a physical change or a chemical change.
.Designing the Investigation for Day 2 (Material list, Procedure, Full page diagram, Safety precautions)
Students should be working on the Summary for Day 1
. Summary: Summarize the results of your experiment in complete sentences.
. Questions:
. Conclusion: State a conclusion for your lab. Does this lab in any way relate to your life?
. Errors and Uncertainties
. Followup
Students also need to complete the write-up for Day 2 including
.Observations for Day 2 (at least 4)
. Analyzing and Interpreting Data - Flowchart summary of Day 2 of the experiment
. Summary
. Questions:
. Conclusion: State a conclusion for your lab.
. Errors and Uncertainties
. Followup
I answered any questions students had on the lab.
Students can get 2 extra credit points if they include a section on their cover sheet for their parents to sign verifying that they have read the report.
-------
Told students about the Sludge project and how it is a combination of 8 labs: (separation labs and identification labs)
Students need to keep notes on all of our preparation labs and keep the lab sheets so they will know what to do when they have to do the same labs for sludge.
Today we will do another separation lab with a bit of identification at the end.
Went through the procedure for the separation of a mixture lab, clearly telling students where to put all the substances they identify. For today, they should do everything except view the crystals under the microscope which will have to wait until the water has evaporated. If students do not finish the density analysis of the gravel and slag they can complete that next time.
Students did the Separation of the Mixture Lab and handed in their lab sheets.
Wed March 4, 2009 - 4B
Reminded students that the write-up for the Distillation of Wood Lab is due next Tuesday. The lab should be typed but if they cannot type it then it must be very neatly hand written.
Reminded students that they should be writing a bit each night so that it doesn't come down to a massive amount of work at the end that they will rush to finish, or not be able to finish. By now students should be at least 75% of the way done. They should have completed:
.Cover page
.General Statement of Lab
.Designing the Investigation for Day 1 (Material list, Procedure, Full page diagram, Safety precautions)
.Collecting and Presenting Data for Day 1 (8 observations, data table, calculation section)
.Analyzing and Interpreting Data for Day 1 - Flow chart for Day 1 including what substances go into each box, what phase you have for each substance (solid, liquid, gas), what processes are indicated by the arrows and whether each process indicates a physical change or a chemical change.
.Designing the Investigation for Day 2 (Material list, Procedure, Full page diagram, Safety precautions)
Students should be working on the Summary for Day 1
. Summary: Summarize the results of your experiment in complete sentences.
. Questions:
. Conclusion: State a conclusion for your lab. Does this lab in any way relate to your life?
. Errors and Uncertainties
. Followup
Students also need to complete the write-up for Day 2 including
.Observations for Day 2 (at least 4)
. Analyzing and Interpreting Data - Flowchart summary of Day 2 of the experiment
. Summary
. Questions:
. Conclusion: State a conclusion for your lab.
. Errors and Uncertainties
. Followup
I answered any questions students had on the lab.
Students can get 2 extra credit points if they include a section on their cover sheet for their parents to sign verifying that they have read the report.
-------
Told students about the Sludge project and how it is a combination of 8 labs: (separation labs and identification labs)
Students need to keep notes on all of our preparation labs and keep the lab sheets so they will know what to do when they have to do the same labs for sludge.
Today we will do another separation lab with a bit of identification at the end.
Went through the procedure for the separation of a mixture lab, clearly telling students where to put all the substances they identify. For today, they should do everything except view the crystals under the microscope which will have to wait until the water has evaporated. If students do not finish the density analysis of the gravel and slag they can complete that next time.
Students did the Separation of the Mixture Lab and handed in their lab sheets.
Reminded students that they should be writing a bit each night so that it doesn't come down to a massive amount of work at the end that they will rush to finish, or not be able to finish. By now students should be at least 75% of the way done. They should have completed:
.Cover page
.General Statement of Lab
.Designing the Investigation for Day 1 (Material list, Procedure, Full page diagram, Safety precautions)
.Collecting and Presenting Data for Day 1 (8 observations, data table, calculation section)
.Analyzing and Interpreting Data for Day 1 - Flow chart for Day 1 including what substances go into each box, what phase you have for each substance (solid, liquid, gas), what processes are indicated by the arrows and whether each process indicates a physical change or a chemical change.
.Designing the Investigation for Day 2 (Material list, Procedure, Full page diagram, Safety precautions)
Students should be working on the Summary for Day 1
. Summary: Summarize the results of your experiment in complete sentences.
. Questions:
. Conclusion: State a conclusion for your lab. Does this lab in any way relate to your life?
. Errors and Uncertainties
. Followup
Students also need to complete the write-up for Day 2 including
.Observations for Day 2 (at least 4)
. Analyzing and Interpreting Data - Flowchart summary of Day 2 of the experiment
. Summary
. Questions:
. Conclusion: State a conclusion for your lab.
. Errors and Uncertainties
. Followup
I answered any questions students had on the lab.
Students can get 2 extra credit points if they include a section on their cover sheet for their parents to sign verifying that they have read the report.
-------
Told students about the Sludge project and how it is a combination of 8 labs: (separation labs and identification labs)
Students need to keep notes on all of our preparation labs and keep the lab sheets so they will know what to do when they have to do the same labs for sludge.
Today we will do another separation lab with a bit of identification at the end.
Went through the procedure for the separation of a mixture lab, clearly telling students where to put all the substances they identify. For today, they should do everything except view the crystals under the microscope which will have to wait until the water has evaporated. If students do not finish the density analysis of the gravel and slag they can complete that next time.
Students did the Separation of the Mixture Lab and handed in their lab sheets.
Tues, Mar 3, 2009 - 4A
Reminded students that they should be keeping up with their write up and should have completed all of the Designing the Investigation parts for both Day 1 and 2. By now they should also have completed the Flow Chart for Day 1 and written up their Observations, Data Table and Calculation sections.
I reviewed the Distillation of Wood - Day 2 procedures and told the students that when they were done, to put the substance in the designated container.
Students did Day 2 of the Distillation of Wood lab. It didn't take very long to complete, less than 30 min.
When students finished, I told them to continue writing up their lab reports so that they could ask me questions while in class.
I reviewed the Distillation of Wood - Day 2 procedures and told the students that when they were done, to put the substance in the designated container.
Students did Day 2 of the Distillation of Wood lab. It didn't take very long to complete, less than 30 min.
When students finished, I told them to continue writing up their lab reports so that they could ask me questions while in class.
Monday, Mar 2, 2009 - 4B
Reminded students that they should be keeping up with their write up and should have completed all of the Designing the Investigation parts for both Day 1 and 2. By now they should also have completed the Flow Chart for Day 1 and written up their Observations, Data Table and Calculation sections.
I reviewed the Distillation of Wood - Day 2 procedures and told the students that when they were done, to put the substance in the designated container.
Students did Day 2 of the Distillation of Wood lab. It didn't take very long to complete, less than 30 min.
When students finished, I told them to continue writing up their lab reports so that they could ask me questions while in class.
I reviewed the Distillation of Wood - Day 2 procedures and told the students that when they were done, to put the substance in the designated container.
Students did Day 2 of the Distillation of Wood lab. It didn't take very long to complete, less than 30 min.
When students finished, I told them to continue writing up their lab reports so that they could ask me questions while in class.
Friday, Feb 27, 2009 - 4A
Reminded students to write up lab as they go and not leave it all for the end.
By today, they should have written up the Cover Sheet, General Statement, Day 1 Material List, Procedure, Diagram, and Safety Procedures.
Talked about Day 2 of Lab.
Drew diagram of apparatus and explained procedure and safety precautions.
You stop when you have 1-1.5 cm left in original test tube.
When done, compare the two liquids and then mix them back together to see if you get back the original.
Safety:
1. Put 3-5 boiling chips in test tube before you start heating to regulate the boiling and prevent burps
2. Closely monitor to prevent overboiling. You can move the wire gauze to increase or decrease the heat.
3. Make sure the rubber tubing in the collection test tube is above the level of the collected liquid (so liquid is not sucked back up if the heat decreases) but below the level of the water in the Erlenmeyer Flask (to allow for condensation)
4. Do not fill the Erlenmeyer Flask up so high that you spill water into the collection test tube.
For homework, students are to work on Day 2 material list, procedures, diagram, and safety.
Also went over flow chart and explained how to construct it.
Students started another run of Day 1 at about 2 pm and finished by 2:30 pm.
By today, they should have written up the Cover Sheet, General Statement, Day 1 Material List, Procedure, Diagram, and Safety Procedures.
Talked about Day 2 of Lab.
Drew diagram of apparatus and explained procedure and safety precautions.
You stop when you have 1-1.5 cm left in original test tube.
When done, compare the two liquids and then mix them back together to see if you get back the original.
Safety:
1. Put 3-5 boiling chips in test tube before you start heating to regulate the boiling and prevent burps
2. Closely monitor to prevent overboiling. You can move the wire gauze to increase or decrease the heat.
3. Make sure the rubber tubing in the collection test tube is above the level of the collected liquid (so liquid is not sucked back up if the heat decreases) but below the level of the water in the Erlenmeyer Flask (to allow for condensation)
4. Do not fill the Erlenmeyer Flask up so high that you spill water into the collection test tube.
For homework, students are to work on Day 2 material list, procedures, diagram, and safety.
Also went over flow chart and explained how to construct it.
Students started another run of Day 1 at about 2 pm and finished by 2:30 pm.
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