32 resources and 4 collections matched your query.
Library of 3383 accessible STEM media resources.
Showing resources 1 to 20 of 32
Select a resource below to get more information and link to download this resource.
The formation of molecular bonds is an essential part of keeping matter together. The sharing of charges between atoms helps them become more stable. Other topics covered include sharing electrons, bonding tendencies, isomers, VSEPR theory, and molecular geometry. Part of the "Chemistry" series.
(Source: DCMP)
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.
(Source: OpenStax)
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.
With support from the National Science Foundation, chemist Kent Kirshenbaum and his team at New York University are engineering molecules to mimic the shapes, structures, and functions of natural proteins. The ultimate goal of this biomimetic chemistry research is to develop a reliable way to build synthetic proteins that can be put to work at the industrial scale. Part of the "Science Nation" series.
Part of the "Chemistry in Action" series. Describes and illustrates the process of chemical bonding through live action footage and animations. Provides an overview of the role atomic structure plays in the process of bonding. Provides examples of how chemical bonding, including ionic bonds, covalent bonds, and metallic bonds, affects the characteristics of matter. Introduces the following terminology: element, atomic structure, energy level, valence electrons, ionic bonds, crystal lattice, covalent bond, and metallic bond.
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.
In this episode, Dr. Michelle Thaller explains the molecular makeup of space. She discusses "interstellar medium," which is what is found between stars. Part of the "Ask an Astronomer" series.
Presents three key concepts of science: static electricity, magnetism, and generating electricity. Each concept is illustrated with a variety of experiments and computer animation to illuminate what is happening both visibly and at the molecular level.
Presents three key physics concepts about force and motion: constant speed, acceleration, and gravity and falling. Each concept is illustrated with a variety of experiments and computer animation to illuminate what is happening both visibly and at the molecular level.
Explore some properties of water with Petunia and Pinky. It's all about those hydrogen bonds. Terms discussed include adhesion, cohesion, surface tension, and specific heat. Part of "The Amoeba Sisters" series.
Part of the "Branches on the Tree of Life" series. Uses crisp graphic animation to describe the molecular-level mechanisms of photosynthesis. Examples of this critical element of plant biology include the major plant groups of mosses, liverworts, ferns, horsetails, and the seed plants (gymnosperms and flowering plants).
Presents three key biological concepts about homeostasis: controlling body temperature, controlling water level, and controlling blood sugar. Each concept is illustrated with a variety of experiments and computer animation to illuminate what is happening both visibly and at the molecular level.
Science lab experiments demonstrate what happens visibly and at a molecular level with the Group 1 highly reactive metals and the Group 17 highly reactive halogens from the periodic table. Experiments also illustrate the range of reactivity among metals. Video has three 5-minute segments for convenience.
Identifying the key molecular players in planarian regeneration may offer clues into how the process may work in other species, including humans. HHMI investigator Alejandro Sánchez Alvarado and postdoctoral fellow Alice Accorsi use RNA-mediated genetic interference (RNAi) to silence different genes in planaria and determine how they affect regeneration.
Presents three key biological concepts about sensory responses and tropisms: the eye, nervous system responses, and plant tropisms. Each concept is illustrated with a variety of experiments and computer animation to illuminate what is happening both visibly and at the molecular level. NOTE: Dissects a horse's eye to identify functions of each part.
Nano expert Lisa Friedersdorf from the National Nanotechnology Coordination Office provides information on nanomaterials that have existed throughout history. She also gives additional information on the nanoscale. Part of the “Ask a Scientist” series.
Presents three key concepts about chemical reactions and energy changes: exothermic and endothermic reactions, reaction rates involving temperature and concentration, and catalysts. Each concept is illustrated with a variety of experiments and computer animation to illuminate what is happening both visibly and at the molecular level.
Showing collections 1 to 4 of 4
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
Resources related to vision
A collection containing 12 resources, curated by Charles LaPierre
3D models and images of the entire periodic table of elements
A collection containing 118 resources, curated by Library Lyna
Biology related concepts
A collection containing 59 resources, curated by Benetech
