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written by John Huffman
This web page contains three interactive tutorials for secondary learners on the common chemicals and molecular compounds found in everyday life. The first tutorial, House and Garden is appropriate for Grades 4-6. The second, Do You Know Your Molecules, is an interactive problem set for Grades 6-9. The last tutorial, Symmetry and Point Groups, is targeted to high school chemistry and preparatory chemistry courses.

Reciprocal Net is a database of information about molecular structures. The project involves research scientists from a number of universities who collaborate to provide educators, students, and the general public with learning tools related to crystallography, chemistry, and biochemistry.
Subjects Levels Resource Types
General Physics
- Properties of Matter
Other Sciences
- Chemistry
- Middle School
- High School
- Informal Education
- Instructional Material
= Activity
= Problem/Problem Set
= Tutorial
- Reference Material
Appropriate Courses Categories Ratings
- Physical Science
- Physics First
- Conceptual Physics
- Algebra-based Physics
- AP Physics
- Lesson Plan
- Activity
- Assessment
- New teachers
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© 2004 The Trustees of Indiana University
biochemicals, chemical symmetry, chemistry tutorial, compounds, crystallography, molecular structure, molecular structure tutorial, molecule, point groups
Record Cloner:
Metadata instance created August 19, 2011 by Caroline Hall
Record Updated:
August 19, 2011 by Caroline Hall
Last Update
when Cataloged:
December 12, 2009

AAAS Benchmark Alignments (2008 Version)

4. The Physical Setting

4D. The Structure of Matter
  • 3-5: 4D/E4a. When a new material is made by combining two or more materials, it has properties that are different from the original materials.
  • 3-5: 4D/E6. All materials have certain physical properties, such as strength, hardness, flexibility, durability, resistance to water and fire, and ease of conducting heat.
  • 6-8: 4D/M1a. All matter is made up of atoms, which are far too small to see directly through a microscope.
  • 6-8: 4D/M1cd. Atoms may link together in well-defined molecules, or may be packed together in crystal patterns. Different arrangements of atoms into groups compose all substances and determine the characteristic properties of substances.
  • 6-8: 4D/M5. Chemical elements are those substances that do not break down during normal laboratory reactions involving such treatments as heating, exposure to electric current, or reaction with acids. All substances from living and nonliving things can be broken down to a set of about 100 elements, but since most elements tend to combine with others, few elements are found in their pure form.
  • 6-8: 4D/M6c. Carbon and hydrogen are common elements of living matter.
  • 6-8: 4D/M10. A substance has characteristic properties such as density, a boiling point, and solubility, all of which are independent of the amount of the substance and can be used to identify it.
  • 6-8: 4D/M11. Substances react chemically in characteristic ways with other substances to form new substances with different characteristic properties.
  • 9-12: 4D/H7b. An enormous variety of biological, chemical, and physical phenomena can be explained by changes in the arrangement and motion of atoms and molecules.
  • 9-12: 4D/H8. The configuration of atoms in a molecule determines the molecule's properties. Shapes are particularly important in how large molecules interact with others.
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Record Link
AIP Format
J. Huffman, (2004), WWW Document, (http://www.reciprocalnet.org/edumodules/chemistry/index.html).
J. Huffman, Reciprocal Net: Crystals and Chemicals in Everyday Life (2004), <http://www.reciprocalnet.org/edumodules/chemistry/index.html>.
APA Format
Huffman, J. (2009, December 12). Reciprocal Net: Crystals and Chemicals in Everyday Life. Retrieved June 20, 2024, from http://www.reciprocalnet.org/edumodules/chemistry/index.html
Chicago Format
Huffman, John. Reciprocal Net: Crystals and Chemicals in Everyday Life. December 12, 2009. http://www.reciprocalnet.org/edumodules/chemistry/index.html (accessed 20 June 2024).
MLA Format
Huffman, John. Reciprocal Net: Crystals and Chemicals in Everyday Life. 2004. 12 Dec. 2009. 20 June 2024 <http://www.reciprocalnet.org/edumodules/chemistry/index.html>.
BibTeX Export Format
@misc{ Author = "John Huffman", Title = {Reciprocal Net: Crystals and Chemicals in Everyday Life}, Volume = {2024}, Number = {20 June 2024}, Month = {December 12, 2009}, Year = {2004} }
Refer Export Format

%A John Huffman %T Reciprocal Net: Crystals and Chemicals in Everyday Life %D December 12, 2009 %U http://www.reciprocalnet.org/edumodules/chemistry/index.html %O text/html

EndNote Export Format

%0 Electronic Source %A Huffman, John %D December 12, 2009 %T Reciprocal Net: Crystals and Chemicals in Everyday Life %V 2024 %N 20 June 2024 %8 December 12, 2009 %9 text/html %U http://www.reciprocalnet.org/edumodules/chemistry/index.html

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