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Chemical Reactions: Matter and Energy in Reactions


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Details

Type of Product:Science Object
Average Rating:
 based on 6 reviews
Publication Title:Chemical Reactions SciPack
Grade Level:Elementary School, Middle School


Description

Science Objects are two hour on-line interactive inquiry-based content modules that help teachers better understand the science content they teach. This Science Object is the final of four Science Objects in the Chemical Reactions SciPack. It explains how different configurations of atoms and molecules are associated with different energy levels. Some changes of configuration among atoms and molecules require a net input of energy whereas others cause a net release. As a result, chemical reactions may release or consume energy. Some reactions such as the burning of fossil fuels release large amounts of energy by losing heat and by emitting light. Energy from light and other electromagnetic radiation can initiate many chemical reactions such as photosynthesis and the evolution of urban smog. The behavior of atoms in chemical reactions demonstrates the conservation of matter: When the number of atoms in a closed system stays the same, their total mass remains constant no matter how they are rearranged.


Ideas For Use

Science Objects are two hour learning experiences teachers can use to enhance their understanding of a particular scientific concept. Teachers can access any topic “on demand” from the Internet. Topics are based on the science literacy goals in the national standards (NSES, Science for All Americans, Benchmarks, and the Atlas of Scientific Literacy) and tied to state standards.

Each Science Object provides an understanding of the science content by providing a structured set of learning experiences through simulations and practice assessments. Science Objects challenge teachers to explore and explain real world phenomena and are founded on the principle that learners must be challenged with a problem, observation, data, etc., in order to develop scientific understanding. Science Objects utilize the five phases of inquiry-based learning: Engage, Explore, Explain, Elaborate, and Evaluate.

Learning Outcomes:
  • Explain the different configurations of atoms and molecules that are associated with different energy levels.
  • Provide examples of chemical reactions that are initiated by energy from light and other electromagnetic radiation.
  • Provide examples of chemical reactions that release large amounts of energy by losing heat and by emitting light.
  • Provide examples of chemical reactions that require a continuous input of energy to continue.
  • Explain how the rearrangement of atoms in chemical reactions explains the conservation of matter.

Additional Info

Science Discipline: (mouse over for full classification)
Conservation of mass
Energy transfer
Temperature
Photochemistry
Chemical formulas
Intended User Role:Elementary-Level Educator, High-School Educator, Middle-Level Educator, Teacher
Educational Issues:Inquiry learning, Professional development, Teacher content knowledge

Technical

Resource Format:application/x-shockwave-flash, audio/mp3, image/gif, image/jpeg, text/html, video/quicktime
Installation Remarks:Run the Science Objects System Check to ensure that your system is capable of viewing the simulations: http://ecommerce2.nsta.org/system_check/
Requirements:Requires Macromedia Flash Player and Apple Quicktime Player


National Standards Correlation

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  • Process Standards for Professional Development
    • Research-Based
      • Address teachers' needs as learners and build on their current knowledge of science content, teaching, and learning. (NSES)


Customer Reviews
good explosions
  Reviewed by: Morgan Burks (warrensburg, MO) on May 1, 2013
  this article has some really great chemical reactions and example of safe explosions that I think students would love to see in the classroom

Review on Chemical Reactions: Matter and Energy
  Reviewed by: Ronaldo Relador (Bowie, MD) on February 29, 2012
  A very organized and exceptional presentation of the foundation of physical science. Matter and Energy were never these interesting.

Review on Chemical Reactions: Matter and Energy
  Reviewed by: Ronaldo Relador (Bowie, MD) on February 29, 2012
  A very organized and exceptional presentation of the foundation of physical science. Matter and Energy were never these interesting.

How Much Energy Matters?
  Reviewed by: Duane Little (Washington, DC) on November 13, 2011
  This Science Object would provide a great introduction to the explosive chemical reactions that can take place between reactants. Most of my older students constantly express a desire to see explosions; teachers can safely use this desire to explain the importance of all reactions (endothermic as well as exothermic). This Science Object gives teachers a great instructional tool and clear insights into how matter, energy and chemical reactions are interrelated. I found this Science Object to be the least difficult to comprehend of all the science objects in this Chemical Reactions SciPack!

Chemical Reasctions: The Initial Energy
  Reviewed by: Chester Orban (Litchfield, NH) on March 19, 2011
  This was an exeptional interactive inquiry. I believe it can be used in HIgn School for 9th grade Physical Science, and for 11th Grade basic Chemistry. The interactive graphs were colorful, easy to use, and expalined well. I especially liked the section that used Fe + CuCl2 yields FeCl2+Cu. NOt only can this formula be use throughout the lab activity (virtual Lab activity) it also shows one of the ways one can smelt Copper, which I do not think was mentioned. This is a great lab.

Rich content!
  Reviewed by: Anthonette (Washington, DC) on September 12, 2010
  As a teacher who was has been out of the classroom for 2 years, this was a great way to review and improve my content knowledge. The video clips and interactive simulations were very helpful!

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