kellychr7AMS

7th Science Rocks!


Leave a comment

Thursday, April 12

Performance Standards/ Disciplinary Core Ideas / Science & Engineering Practices:
MS-PS1-5.
Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved
DCI:
*PS1.B:  Chemical Reactions
*Substances react chemically in characteristic ways. In a chemical process, the atoms that make up the original substances are regrouped into different molecules, and these new substances have different properties from those of the reactants.
*The total number of each type of atom is conserved, and thus the mass does not change.
CCC:  Energy and Matter
Matter is conserved because atoms are conserved in physical and chemical processes.
MS-LS1-6 Construct a scientific explanation based on evidence for the role of photosynthesis in the cycling of matter and flow of energy into and out of organisms. 
MS-LS1-7
Develop a model to describe how food is rearranged through chemical reactions forming new molecules that support growth and/or release energy as this matter moves through an organism.
DCIs: 
PS3.D:  Energy in Chemical Processes and Everyday Life
Cellular respiration in plants and animals involve chemical reactions with oxygen that release stored energy. In these processes, complex molecules containing carbon react with oxygen to produce carbon dioxide and other materials.
LS1.C:  Organization for Matter and Energy Flow in Organisms
Within individual organisms, food moves through a series of chemical reactions in which it is broken down and rearranged to form new molecules, to support growth, or to release energy.
LS1.CPlants, algae (including phytoplankton), and many microorganisms use the energy from light to make sugars (food) from carbon dioxide from the atmosphere and water through the process of photosynthesis, which also releases oxygen. These sugars can be used immediately or stored for growth or later use.
CCC:  Energy and Matter
Matter is conserved because atoms are conserved in physical and chemical processes.
SEP
Developing and Using Models  Develop a model to describe unobservable mechanisms
Today in Class:
1.  You and your group completed the Simple Candle Q & A.  Then we took a good amount of time to discuss these answers.    These discussions were terrific!  Do you understand now how chemical changes take place and relate to the re-arrangement of atoms?  Do you understand how to relate prior knowledge, like density, relates to the water formed and the wax products rising?  Isn’t it fantastic to understand how the atoms rearrange, but matter is neither created or destroyed?
2.  We also discussed how this reaction was related to the LHC, or Large Hadron Collider reaction (from your reading last night).
Here is a picture of the LHC from above and below (some students asked for this in each class):
3.  Next, students started watching the video (link below).    This video explains photosynthesis (which we studied in the Microbiology unit) and now pumps it up a level to add in the chemistry concepts that we have been studying.    —–> So much fun, I can hardly believe it!!!!

TedEd: The Simple Story of Photosynthesis and Food

 

Take Away Task – Homework:   Finish watching the 4-minute video—but make sure to take your time and answer the questions, filling in the blanks.  This is important to help you understand the experiment tomorrow!

 

Advertisements


Leave a comment

Wednesday, April 11

Performance Standards/ Disciplinary Core Ideas / Science & Engineering Practices:

MS-PS1-2     Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.

DCIs:
*PS1.A:  Structure and Properties of Matter
Each pure substance has characteristic physical and chemical properties (for any bulk quantity under given conditions) that can be used to identify it. (MS-PS1-2)
*PS1.B:  Chemical Reactions
Substances react chemically in characteristic ways. In a chemical process, the atoms that make up the original substances are regrouped into different molecules, and these new substances have different properties from those of the reactants.
SEP
*Analyzing and Interpreting Data
*Engaging in Argument from Evidence
Today in Class:
1.  Changing seats—- new seating arrangement!
2.  We discussed and corrected the Vinegar/Baking Soda / Balloon Experiment.  Students—–>  your “Reasoning” was much more on a 7th Grade Science Level!  Great!
3.  New demonstration lab:  “Lighting a Simple Candle.”  This experiment reinforced the reading from Monday (reactants, products, chemical reaction).  Notes for those terms will be posted on the ‘Notes for the Unit page on this Blog.  Many of you had the correct idea for the expected results for  this demonstration.  Were you surprised as to the products for the demonstration?  Which product was produced that surprised you?    We will continue the completion of that demonstration tomorrow.  Nice work.
Homework / Take Away Task:   By now, every student should know that I made a mistake with HW last night.  I apologized in each class (and in Google.classroom), I am so so sorry if you were frustrated by my lack of attaching the reading to the assignment online.  So……………………………  the HW tonight is to complete the reading, pages 68-69.  Also, as you read, complete the questions (shared again on Google.Classroom).  I will also share these here!

Reading pages 68-69.  Answer Questions (in notes). SuperFluids and The LHC

  1. When gases are cooled to Absolute Zero, what happens to the molecules of these gases?
  1. What do we call these very cold gases?
  1. What nickname do we call these superchilled gases – named after the property that they exhibit?
  1. What is the LHC?
  1. What happens to particles in the LHC? Why?


Leave a comment

Tuesday, April 10

Performance Standards/ Disciplinary Core Ideas / Science & Engineering Practices:

MS-PS1-2     Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.

DCIs:
*PS1.A:  Structure and Properties of Matter
Each pure substance has characteristic physical and chemical properties (for any bulk quantity under given conditions) that can be used to identify it. (MS-PS1-2)
*PS1.B:  Chemical Reactions
Substances react chemically in characteristic ways. In a chemical process, the atoms that make up the original substances are regrouped into different molecules, and these new substances have different properties from those of the reactants.
SEP
*Analyzing and Interpreting Data
*Engaging in Argument from Evidence
Today in Class:
1.  You talked with a partner and checked for your understanding of the reading assigned Monday.  I checked and recorded your reading strategies.
2.  You related the reading to the Balloon / Vinegar / Baking Soda experiment— again talking with a small group.
3.  Next, we discussed your results and a few other class period’s results.  We discussed what it meant to change the ratio of reactants and to change the experiment, but KEEP the RATIO the same.  You guessed as to what would happen in each instance and then we compared your educated guesses with actual results.  We discussed how we could actually measure the products and reactants – in a different manner that we had done in our experiments.
4.  Due to the schedule before Break– about half of the class periods wrote their “Reasoning” and the other half checked these statements.
Homework – Take Away Tasks:   Read pages 68-69.  Answer the questions on Google Classroom with the assignment.


Leave a comment

Monday, April 9

Performance Standards/ Disciplinary Core Ideas / Science & Engineering Practices:

MS-PS1-2     Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.

DCIs:
*PS1.A:  Structure and Properties of Matter
Each pure substance has characteristic physical and chemical properties (for any bulk quantity under given conditions) that can be used to identify it. (MS-PS1-2) 
*PS1.B:  Chemical Reactions
Substances react chemically in characteristic ways. In a chemical process, the atoms that make up the original substances are regrouped into different molecules, and these new substances have different properties from those of the reactants.
SEP
*Analyzing and Interpreting Data
*Engaging in Argument from Evidence
Today in Class:
1.  Those of you that missed school Thursday and Friday before Spring Break, you need to complete and turn in your Copper Caper Lab WS.
2.  You re-read your Inflating a Balloon Procedure and Materials.  Then you decided which roles each person in your group would have.  
3.  1st- 4th hours:  You ran  your first trial (control) for this experiment.  Then you shared your data *(time to inflate; percent inflated) with other groups.  
5th & 7th Hours:  You changed an Independent Variable (amount of baking soda) OR you increased both the vinegar and the baking soda — but kept an equal ratio with the two substances, and then ran further trials.
Here is a link to a simple video about this experiment, in case you were absent:
Homework:  Read “Atoms in Chemical Reactions”  pages 105-111.  Which reading  strategy will you use?


Leave a comment

Friday, March 30

Performance Standards/ Disciplinary Core Ideas / Science & Engineering Practices:

MS-PS1-2
Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
DCIs:
*PS1.A:  Structure and Properties of Matter
Each pure substance has characteristic physical and chemical properties (for any bulk quantity under given conditions) that can be used to identify it. (MS-PS1-2)
*PS1.B:  Chemical Reactions
Substances react chemically in characteristic ways. In a chemical process, the atoms that make up the original substances are regrouped into different molecules, and these new substances have different properties from those of the reactants. (MS-PS1-2)
MS-ETS1-2
Evaluate competing design solutions using a systematic process to determine how well they meet the criteria and constraints of the problem.
SEP
*Analyzing and interpreting Data
*Engaging in Argument from Evidence
DCI: ETS1.B:  Developing Possible Solutions
There are systematic processes for evaluating solutions with respect to how well they meet the criteria and constraints of a problem.
Today in Class:
1.  For the first half of the day, I did not see most of you, as you were having fun with Hoops for Heart!  Good for you, the American Heart Association is a strong cause to support.
2.  5th Hour and 7th Hour started their trials for the Balloon and Vinegar and Baking Soda lab. That was fun!
Homework:  NONE!


Leave a comment

Thursday, March 29

MS-PS1-2
 Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
DCIs:
*PS1.A:  Structure and Properties of Matter
Each pure substance has characteristic physical and chemical properties (for any bulk quantity under given conditions) that can be used to identify it. (MS-PS1-2) 
*PS1.B:  Chemical Reactions
Substances react chemically in characteristic ways. In a chemical process, the atoms that make up the original substances are regrouped into different molecules, and these new substances have different properties from those of the reactants. (MS-PS1-2)
MS-ETS1-2
Evaluate competing design solutions using a systematic process to determine how well they meet the criteria and constraints of the problem.
SEP
*Analyzing and interpreting Data
*Engaging in Argument from Evidence
Today in Class:
1.  You and your classmates grouped up to discuss how to write “Reasoning” statements and “Conclusions.”  This was a hard process for most students.  I would recommend referring to the Performance Standards and the key concepts in notes and in your reading strategies.
2.  Everyone wrote their Reasoning Statements / Conclusions.
3.  We evaluated and corrected each others’ lab papers.
4.  IN most classes, students read the “Inflating a Balloon” experiment with their groups.  I will share these with you online tomorrow (if you will not be in school).
No Homework – Unless You have Missing Work.


Leave a comment

Wednesday, March 28

Performance Standards/ Disciplinary Core Ideas / Science & Engineering Practices:

MS-PS1-2
 Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
DCIs:
*PS1.A:  Structure and Properties of Matter
Each pure substance has characteristic physical and chemical properties (for any bulk quantity under given conditions) that can be used to identify it. (MS-PS1-2)
*PS1.B:  Chemical Reactions
Substances react chemically in characteristic ways. In a chemical process, the atoms that make up the original substances are regrouped into different molecules, and these new substances have different properties from those of the reactants. (MS-PS1-2)
MS-ETS1-2
Evaluate competing design solutions using a systematic process to determine how well they meet the criteria and constraints of the problem.
SEP
*Analyzing and interpreting Data
*Engaging in Argument from Evidence
DCI: ETS1.B:  Developing Possible Solutions
There are systematic processes for evaluating solutions with respect to how well they meet the criteria and constraints of a problem.
 
Today in Class:
1.  Quiz 4 Chemistry – this was online.
2.  Next, you and your partner  worked on the Copper Caper Lab.  You ran more trials (if you needed to), you checked other groups’  measurable data and recorded this, and also compared your data to other correct trials that you ran.  
You and your partner then should have completed your data table or graph.  This lab should be ready to turn in tomorrow after you complete your “Reasoning.”
Homework:   No HW, unless you and your partner did not run your experimental trials or you did not complete your lab write-up (see above).