TeachEngineering
Teach Engineering: Surface Tension Lab
Students extend their understanding of surface tension by exploring the real-world engineering problem of deciding what makes a "good" soap bubble. Student teams first measure this property, and then use this measurement to determine the...
TeachEngineering
Teach Engineering: Superhydrophobicity: The Lotus Effect
Students are introduced to superhydrophobic surfaces and the "lotus effect." Water spilled on a superhydrophobic surface does not wet the surface, but simply rolls off. Additionally, as water moves across the superhydrophobic surface, it...
Texas Education Agency
Texas Gateway: Ionic and Covalent Bonding
In this tutorial, students learn about ionic and covalent bonds and predict which elements will form which type of bond. Includes interactive exercises as well as videos.
BioEd Online
Bio Ed Online: Finding the Carbon in Sugar
Students learn that fossil fuels release energy when they are burned, and this takes the forms of light, heat, gases, etc. For this lesson they explore combustion with a candle and with sugar. The lesson and accompanying PowerPoint can...
Savvas Learning
Chemistry: Central Science Live: Properties of Solutions
This site provides an excellent overview of the solution process. Content includes a focus on how a solution is formed, energy changes and solution formation, spontaneity and disorder, and solution formation and chemical reactions.
American Chemical Society
Middle School Chemistry: Lesson Plans: Temperature Changes in Dissolving
Media-rich lesson in which learners discover that it takes energy to break bonds, and that energy is released when bonds are formed during the process of dissolving. They also determine whether dissolving is either exothermic or...
Chemicool
Chemicool: Manganese
Chemicool.com offers a very well organized set of data tables describing the chemical and physical properties of manganese. Very helpful.
Khan Academy
Khan Academy: Thermodynamics Article
Thermodynamics is a very important branch of both physics and chemistry. It deals with the study of energy, the conversion of energy between different forms and the ability of energy to do work. Through this article, you will begin to...
Encyclopedia of Earth
Encyclopedia of Earth: Uranium
Information about the radioactive element, Uranium, atomic number 92. Describes its history, physical and atomic properties, how abundant it is on the Earth, and permissible exposure limits. Also discusses sources, uses, isotopes,...
Concord Consortium
Concord Consortium: Stem Resources: Making and Breaking Bonds
A look at the processes of association and dissociation in chemical bonding. Observe simulations that show the influence of temperature on making and breaking of bonds, how diatomic molecules form, and what determines the speed of...
Chemicool
Chemicool: Cesium
Chemicool.com offers a very good summary of the key physical and chemical properties of cesium. Well organized.
University of Arizona
University of Arizona: Problemas De La Fotosintesis. Bloque 1
In this module you will be able to test your understanding of how light energy is converted into different forms of chemical energy during photosynthesis, to review the equations for the light reactions of photosynthesis, and to explore...