June 6

Science – Fluid Compressability and Hydraulic Systems

Today we talked about how air and fluid react differently to pressure with different compressability and transfer of force.  The videos we watched below help to gain background understanding.  The handout was provided in class and can be accessed on the white shelves at the back of the classroom.

https://www.youtube.com/watch?v=YlmRa-9zDF8

 

 

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May 29

Science – Mini-labs for Tuesday, May 30 – Heavy News and The Dancing Penny

For the following mini-labs students must use the same template as in our mini-labs from last week.

  • What I already know (or what I think) about this is…
  • My hypothesis is that…because…
  • My observations about the experiment are…
  • In conclusion:
    • revisit hypothesis
    • explain observations
    • what I learned

Mini-lab #1 – Heavy News

Today we will experiment with how surface area can affect air pressure on an object.  We will use newspaper, a stick, and a hammer to demonstrate.  Mr. Ewert will place the stick on the table with some of it hanging over the edge.  He will then strike the overhanging end.  Then he will repeat but after covering the table sitting portion of the stick with a large newspaper.

Download a copy of this lab here

17.05.30 8-3-09 – Air Pressure – Discrepant Event-1is0lj0

Watch this experiment here

Mini-lab #2 – The Dancing Penny

Today we will be talking about how gases have pressure and that it has a relationship to temperature.  Mr. Ewert will take a bottle, immerse it in cool water, empty it, wet a penny, place it on top to seal the bottle, and then wrap his hands around the bottle.  What will happen?  Why?

Watch an example of this experiment here.

 

 

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May 24

Science – Water Pressure – Discrepant Events

Today we are observing some discrepant events.  The students are to observe, discuss, identify key points, and then explain using scientific-based knowledge.

For each of the experiments students are to create an exit slip that has:

  • What I already know (or what I think) about this is…
  • My hypothesis is that…because…
  • My observations about the experiment are…
  • In conclusion:
    • revisit hypothesis
    • explain observations
    • what I learned

Students will have a total of two exit slips (one for each discrepant event shown in class).

Mr. Ewert will give access to the lesson plans for this lesson.  They will be on the shared drive. So, if you missed class or don’t quite understand some of the concepts you can visit the shared drive to see what you missed.

Discrepant Event #1 – Air pressure displacement (2 videos)

 

Discrepant Event #2 – Varying Gravity and Pressure

February 28

Explaining reflected rays on convex and concave mirrors

Today we experimented with concave and convex mirrors. We read pages 284 and 285 in the textbook and Then followed the procedures shown in the picture below. Students created Ray diagrams similar to the second picture below and then labeled them using them to explain their responses to the questions posed on page 285 in the text. Students are reminded that this is to be handed in in the formal format of a lab is showing and picture one on this post.