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Figure 2.9 (OpenStax, Biology 2e) caption: Two or more atoms may bond with each other to form a molecule. When two hydrogens and an oxygen share electrons via covalent bonds it forms a water molecule.
(Source: OpenStax)
Turn light source on to explore. Observe what happens in the observation window as you set up different combinations of light source and molecule. Note this simulation is the first to support our zoom and magnification feature, so zoom in for a closer look, if you need to.
(Source: PhET Interactive Simulations)
Part of the "Visualizing Cell Processes" series. Includes the following modules: "The Cell Machinery," "A Variety of Cells," "Organic Molecules: The Building Blocks of Life," "Prokaryote Evolution and Diversity," and "Independently Living Eukaryotic Cells."
(Source: DCMP)
Molecules form when individual atoms create bonds by sharing electrons. Understanding how atoms combine to make molecules allows scientists to predict many of the physical and chemical properties of substances. Since the outermost eight electrons are key to forming compounds, this unit shows how the Octet Rule provides a basis for predicting how atoms may gain, lose, or share electrons to fill the slots in their outer shells. A fundamental understanding of how electrons form bonds leads to the three-dimensional shapes of molecules and has implications in all aspects of chemistry. Part of the series Chemistry: Challenges And Solutions.
Figure 2.27 (OpenStax, Biology 2e) caption: These functional groups are in many different biological molecules. R, also known as R-group, is an abbreviation for any group in which a carbon or hydrogen atom is attached to the rest of the molecule.
Build sandwiches, then investigate molecules to explore reactants products and leftovers. Note this sim does not yet have a Keyboard Shortcuts dialog, and simple descriptions are in progress.
Students will explore how molecular movement is related to temperature, and how temperature can be measured. Important terminology includes thermometer, thermal energy, kinetic energy, potential energy, energy conversion, molecules, and heat.
Figure 2.10 (OpenStax, Biology 2e) caption: A double bond joins the oxygen atoms in an O2 molecule.
Introduces the concept that everything is made of matter, and examines the three states of matter. Defines and examines a range of solids, liquids, and gases. Uses graphics to show the effects of heat on atoms and molecules in solids. Summarizes each segment.
Diagram of a basic lipid bilayer. Design modalities for the image include braille with and without labels, print with and without labels in greyscale, color, and texture.
(Source: Benetech)
Part of the "Inside the Living Cell" series. Describes the properties of the plasma membrane, how it governs the kinds of molecules that go in and out of cells, and how cells feed by engulfing (phagocytosis) and drinking in (pinocytosis) fluids. Also reviews membrane structure, osmosis, transport proteins, active transport, cell eating, cell drinking, and receptor proteins.
Part of the "Inside the Living Cell" series. Illustrates the mechanisms of photosynthesis and cellular respiration. Introduces adenosine triphosphate, or ATP, the universal energy carrier molecules that supply energy-hungry reactions. Also outlines the structure and function of chloroplasts and mitochondria, energy transforming organelles. Overviews ATP and chemical energy, mitochondria, aerobic respiration, chloroplasts, and the reactions of photosynthesis.
The Magic School Bus is an award winning animated children’s television series based on the book series of the same title by Joanna Cole and Bruce Degen. It is notable for its use of celebrity talent and being both highly entertaining and educational. When Wanda's favorite singer, Molly Cule, comes to town, she chooses Ms. Frizzle's class to wash her famous car. The kids clean it from top to bottom, but when Molly insists they missed a spot, they shrink down to see the molecules that make up the car. Only then can they discover how to clean it down to the very last bit. But time is running out. They'll need a molecular miracle to get the car clean before Molly's concert begins.
Host Alex Dainis explains the difference between saturated and unsaturated fats. She also discusses the chemical makeup of fatty acids.
Students learn how to differentiate mixtures, solutions, elements, and compounds. Additional concepts and terminology discussed include: element, pure substance, properties, atoms, molecule, compounds, types of mixtures, suspension, colloid, and alloy.
Figure 2.23 (OpenStax, Biology 2e) caption: Carbon can form five- and six-membered rings. Single or double bonds may connect the carbons in the ring, and nitrogen may be substituted for carbon.
Showing collections 1 to 3 of 3
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
Biology related concepts
A collection containing 59 resources, curated by Benetech
A collection of simulations from PhET.
A collection containing 15 resources, curated by Charles LaPierre
