20 Sept. Science 8 Workday on report for Summative Project–Mixing Ethanol and Water

  1. Mindful moment.
  2. Review recent DSN entry–the draft of your project report.
  3. Preview blogpost for today.
  4. Create DSN entry for today. All you need to do is add a link to your summative project report.
  5. Questions.
  • * * * * *

Check out your salt crystals.

Carefully look at those that seem to be floating. How do you think that happens? Can you get a picture of the floating layer?

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Use class today to write/finish your report.

Pay close attention to the guidelines. Ask if you are uncertain about the format and style. The report will be due at the beginning of class on Monday 24 September. You will need a paper copy and a digital copy properly uploaded and labeled in your DSN.


Title An Investigation of phenomena associated with the mixing of water and ethanol


Describe study of matter up to this point. Describe original demonstration and your attempt to replicate. Describe class data. 

Question(s) What is a possible explanation for the volume that results from mixing 50 ml water with 50 ml ethanol?


Describe the possible explanation. Describe the consequences that follow if the explanation is true.


Describe everything you did in order to test your explanation. Describe the logic of your test. Describe any measurements. Describe how the data were analyzed. Do NOT present any data. You may include photos to illustrate your procedure(s).


Present all data in an organized fashion. Use tables and graphs where appropriate. If you have photos that show results, you may present them here.


Explain how the results support or challenge (rule out) the possible explanation. Cite specific data to back up your claim. Spell out your argument carefully. How does the idea of particles (atoms and molecules) play a role in your analysis?


Summarize briefly the findings for part one. Raise the question that you will consider for part 2.

Background for part 2.

Question(s) for part 2.

Expectation(s) for part 2.

Procedure(s) for part 2.

Results for part 2.

Analysis for part 2.

Conclusion for parts 1 and 2 combined and integrated.

What have you learned about matter? Relevance of ideas about particles (atoms and molecules) What questions do you now have? Other things you might like to try and why?

You may cite the report below. You may use the report for inspiration on how to write a scientific report. Note: It is missing the conclusion. DO NOT try to copy the report or use it as a template. Follow the guidelines above.

Blogpost for 14 September: http://rfrazier.msblogs.aes.ac.in/2018/09/13/14-september-science-8-summative-investigation-project-mixing-ethanol-and-water/

Blogpost for 12 September: http://rfrazier.msblogs.aes.ac.in/2018/09/12/12-sept-science-8-summative-project-what-happens-when-ethanol-is-mixed-with-water/

Blogpost for 10 September: http://rfrazier.msblogs.aes.ac.in/2018/09/09/10-sept-science-8-beginning-summative-project-1-for-the-study-of-matter/

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See this email sent yesterday to all my Science 8 students:

Dear Science 8 students,

One of our units this year is on Astronomy. This coming week, there are two celestial events you should watch–the Autumnal Equinox on 23 September and the full moon (Harvest Moon) on 25 September. 

Download a compass app on your ipad. Choose a free one. Choose on that is easy to operate. Explore its use and find out how it works. Also download an angle measuring app, sometimes called a clinometer. 

Observations to make when locating objects in the sky: Bearing–what compass direction must one look in order to see the object of interest. Elevation–at what angle must one tilt the line of sight to see the object? Date. Time. Location. Conditions.

Useful term: Celestial meridian. The imaginary line running north and south directly across the sky overhead. The term a.m. means ante-meridian. The term p.m. means post-meridian. Ante= before. Post = after.

Make sure you can use a map app, too.  

  • On 23 Sept. observe where the sun rises on your horizon. Check the direction with your compass app. Do the same for the setting direction. Note the time for rising AND the time for setting. How many hours are there between the rising time and the setting time. What do you expect in 1 month? in 2 months? in 3 months? 
  • Notice the directions and times on this solar calculator: https://www.timeanddate.com/sun/india/new-delhi
  • Equinox comes from words that mean “equal night.” Why do you think the day has that name? There is an equinox in the fall and one in the spring. How might that be explained?
  • Take pictures at your location showing the sun and your location.
  • Look at the data on this moon calculator. 
  • Notice that the moon is full on 25 Sept. Notice the rising time. 
  • The full moon is directly opposite the sun, with the earth in the middle, when the moon is full. 
  • Thus, the full moon always rises when the sun sets. 
  • What time does the moon rise on 26 Sept. What about 27? What about 28? What about 29? 
  • What happens to the phase as time passes? How do you think the phase is related to the rising and setting times for the moon?
  • When can you see the moon in the day time? What phases can the moon be in when you see it in mid-morning? in mid-afternoon? 
  • When you are observing the moon, always notice the position of the sun. Point at the moon with one hand and at the sun with the other. What is the relation between the angle your arms make with your body and the phase of the moon? 
  • On what days might we see the moon in the sky while we are at school?
  • https://www.timeanddate.com/moon/india/new-delhi
  • Take pictures at your location showing the moon and your location.

This is a very useful website. Become familiar with it.


Happy sky watching,


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Getting ready for Parent Student Teacher conferences:

Have the following items ready to show and discuss.

  1. What has been the most interesting part of Science for you so far this year? Why would you say it is the most interesting?
  2. What has been most surprising? Explain.
  3. What has been most puzzling? Explain.
  4. Describe your level of engagement in Science so far this year. Provide examples where you have shown initiative and effort to get involved in learning. What do you think motivates you (or would motivate you) to have sustained engagement in Science?
  5. What do you feel is the most important idea/concept you have learned so far this year? Explain why you think it is most important. Provide an example of your work/thinking related to your answer (an entry from your DSN).
  6. What do you feel is the most important scientific practice you have learned so far this year? Explain why you think it is most important. Provide an example of your work/thinking related to your answer (an entry from your DSN).
  7. What has been the most challenging concept you have encountered so far this year? What makes it most challenging? What has your response been to this challenge? Show an example of how you have dealt with the challenge.
  8. What has been the most challenging scientific practice you have encountered so far this year? What makes it most challenging? What has your response been to this challenge? Show an example of how you have dealt with the challenge.
  9. Show your three best DSN entries so far this year. What do you think makes them your best? Comment on your DSN overall. How do you decide what picture to take and what sketch to make? How much time do you spend? What could you do to make the digital science notebook an important part of your learning in science?
  10. Show your summative report. Explain your thinking. What was the most challenging part of the project? Why do you think it was most challenging?
  11. What do you feel is most helpful for your learning in Science? What learning goals do you have for the rest of the year in Science? Explain how you chose these goals? What will you try to do to meet these goals? What kind of support do you need to help you meet these goals? How will you assess your success at meeting these goals?

About rfrazier

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