- Mindful moment.
- Review past DSN entries / past class. Your Comeback Can Summative project is due at the beginning of the next class. Paper copy AND digital copy. Do not forget the description/explanation AND the reflection.
- See today’s blogpost–it is important. Bookmark it for the references.
- Prepare for today’s activities. There will be two parts. 1) Report card comment suggestions and 2) Energy.
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Report card comment suggestions. The goal is for the comments about you and science 7 to be specific and individually relevant. Be sure to use specific examples. Please explain your thoughts fully.
Complete the following on lined paper with your name and period, turn in, and keep a copy (photo) for your DSN.
A. What sort of comment do you feel would be most helpful to you and your parents with regard to you and Science 7? Why? Write an example.
B. What truly accurate comment would you write about your understanding of scientific ideas in Science 7?
- Describe a particular concept where your understanding grew, changed, and became more sophisticated. How did this happen for you?
- Describe a particular concept that presented a barrier to your understanding. Why do you think the idea was difficult for you? What have you done in response to the challenge? What do you think would help you overcome the challenge in understanding?
C. What truly accurate comment would you write about your skill(s) at carrying out scientific investigations? Consult the chart of scientific practices at the front of the room. Where do you feel you have grown in terms of scientific practices and skills? What has been most helpful.
D. What truly accurate comment would you make about your level of effort in science 7. The digital science notebook has been promoted as a way for every student to improve in sustained engagement. A promise was made that if a student kept a complete and up-to-date DSN, that their science learning would grow. To what extent have you tested this promise. Explain the level of effort you have devoted to the DSN.
E. What benefits do you see in learning scientific ideas/explanations and the scientific ways of working and of seeing the world? To what do you attribute your views? What are your plans for next semester? Next year? After high school? After that? Do you have any long term ambitions? What are they? How do you see yourself with respect to those ambitions?
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See the kinetic sculptures/toys in the center of the class. Observe them. Record your observations in your DSN entry for the day.
Offer an explanation for the things you see.
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What do you know about swinging on playground swings? Describe your experience. What affects what happens when you swing? How?
Swing = one full cycle back and forth
Frequency = how many swings occur in a given amount of time
What happens during one swing–direction? speed? weight? other?
What are the factors that affect how a swing operates? What is the basis for the effect?
In what way is the comeback car like a swing?
Oscillators. See this video clip: <https://www.youtube.com/watch?v=47LBKOaO0JU>
Watch the following video as homework. If you do not want to watch it in one sitting, watch it in segments. Use the captions. Start and stop to make sure you understand each example. List your questions about ideas, examples, vocabulary.
Change (from the Ring of Truth–An Inquiry into How We Know What We Know) <https://www.youtube.com/watch?v=Nk8CQNThbc0>
Some ideas about Energy. Notice those expressed in common terms (from <https://rationalwiki.org/wiki/Laws_of_thermodynamics>):
There are three ‘Laws’ of thermodynamics (“laws” in the sense that they describe how physical systems “must” behave), and also a “zeroth” law, which isn’t really a law so much as a definition of what is meant by “temperature”.
- Zeroth law of thermodynamics: “When two systems are in thermal equilibrium with a reservoir, they are in thermal equilibrium with each other.”
- First law of thermodynamics: “The total energy of the Universe is constant.”
- Second law of thermodynamics: “The entropy of an isolated system does not decrease.”
- Third law of thermodynamics: “As the temperature of a perfect crystal approaches zero, its entropy approaches a constant.”
The 1st, 2nd and 3rd Laws may be humorously summarized in non-scientific form as:
- You can’t get something for nothing.
- You can’t even break even unless you cool the temperature to absolute zero.
- It’s impossible to actually reach absolute zero.
Or, if you are a poker player:
- You can’t win.
- You can’t break even.
- You can’t get out of the game.
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How would you explain the idea of Energy? How do you think your idea might compare to the scientific idea?