Museum of Science
The Atom's Family: Mighty Molecules
In this activity, students construct models of molecules using marshmallows and gum drops.
Thomas Jefferson National Accelerator Facility
Jefferson Lab: Atoms, Elements and Molecules: Questions and Answers
Read common questions and answers about atoms, elements and molecules.
Estrella Mountain Community College
Online Biology Book: Chemistry I: Atoms and Molecules
In this online biology textbook, learn about atoms and molecules as they relate to life. Find out about topics such as electrons and energy, chemical bonding, and chemical reactions.
CK-12 Foundation
Ck 12: Plix: Build Some Helium: Atoms to Molecules
[Free Registration/Login Required] Build your own helium atom and make sure it has the correct number of protons, electrons, and neutrons on this site. Site also includes a small quiz on the topic.
CK-12 Foundation
Ck 12: Plix: Aspartame Molecule: Peptides
[Free Registration/Login Required] Given prior knowledge of bonding and the molecular make up of aspartame, examine the model and determine which color represents which atom. Drag the labels at the bottom to the appropriate colored atom...
National High Magnetic Field Laboratory
Magnet Academy: Mass Spectrometry: How to Weigh an Atom
It's hard enough to weigh something as itty bitty as atoms or molecules. Factor in that they're careening by faster than Jeff Gordon on steroids, and you get an idea what scientists are up against. Using comet particles from NASA's...
American Chemical Society
Middle School Chemistry: Energy Levels, Electrons, and Covalent Bonding
Students discover the concept that two atoms can attract and form a covalent bond.
Vision Learning
Visionlearning: Atomic Theory and Structure: The Mole: Its History and Use
An introduction to the mole, a unit of measurement that quantifies atoms and molecules.
CK-12 Foundation
Ck 12: Polarity and Intermolecular Forces
[Free Registration/Login may be required to access all resource tools.] The following online tutorial describes how the electronegativity difference between two atoms in a covalent bond results in the formation of a nonpolar covalent,...
Texas Education Agency
Texas Gateway: Kinetic Theory: Atomic & Molecular Explanation of Pressure & Temp
By the end of this section, you will be able to express the ideal gas law in terms of molecular mass and velocity; define thermal energy; calculate the kinetic energy of a gas molecule, given its temperature; describe the relationship...
Concord Consortium
Concord Consortium: Stem Resources: Electrons in Atoms and Molecules
A module with animations, explanations, and questions about the importance of electrons in the structure of an atom. Understand the definition and locations of electrons in the atom. Explore the role of electrons in bonding, polarity,...
PBS
Pbs Learning Media: Chemical Bonds
This interactive activity developed for Teachers' Domain demonstrates how attractive forces between atoms create chemical bonds, resulting in the formation of molecules and compounds.
Simon Fraser University
Chem1 Virtual Textbook: Chemical Composition
Chemical composition is a section of a larger overview on Chemistry, covering a variety of aspects. This section focuses on elements, atoms, compounds, and structure. Examples, formulas, and pictures are provided.
Other
Atoms in Motion: All Matter Is Made of Atoms
Atoms are very, very small. Atoms are so small that it is often said that there are as many atoms in a single grain of sand as there are grains of sand on all of the world's beaches - certainly a difficult thing to prove, but you get the...
Science4Fun
Science4 Fun: Molecules
What is a molecule? Discover why molecules are formed and other fun facts.
Ducksters
Ducksters: Kids Science: Molecules
Kid's learn about the science of the molecules. Tiny chemistry and compounds of atoms and elements make up all matter.
Concord Consortium
Concord Consortium: Molecular Workbench: Electrons in Atoms and Molecules
A model that explores why electrons are so important in chemistry. Investigate electron clouds, what happens when two atoms come together, and chemical polarity.
CK-12 Foundation
Ck 12: Plix: Carbohydrates: A Glucose Molecule
[Free Registration/Login Required] Drag the groups of hydroxy and hydrogen atoms to their proper locations to make a complete glucose molecule.
CK-12 Foundation
Ck 12: Life Science: 2.1 Elements and Compounds
Learn how basic elements form molecules to support life.
American Chemical Society
Middle School Chemistry: Represent Bonding With Lewis Dot Diagrams
Students draw and interpret Lewis dot diagrams for individual atoms and both covalent and ionic compounds.
Nobel Media AB
The Nobel Prize: The Nobel Prize in Chemistry 1934
At this website from The Nobel e-Museum, read about Harold Clayton Urey (1893-1981 CE), the chemist awarded with a Nobel Prize "for his discovery of heavy hydrogen." Download Urey's Nobel Lecture, "Some thermodynamic properties of...
Other
Atoms in Motion: Demo
Demonstration of the "Atoms In Motion" app running on an iPad simulator. User interactions and gestures control the entire simulation.
Simon Fraser University
Chem1 Virtual Textbook: The Basics on Atomic Theory
As part of the Virtual Textbook, this site examines all things related to Atomic Theory including information on atoms, molecules, formulas, equations, nomenclature, and more.
University of Arizona
University of Arizona: Biochemistry
Problem sets, tutorials, and activities related to biochemistry.
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