This 12-minute video lesson looks at the polymerization of alkenes with acid. [Organic Chemistry playlist: Lesson 30 of 73].
This 11-minute video lesson looks at the Cahn-Ingold-Prelog System for Naming Enantiomers (Example 2). [Organic Chemistry playlist: Lesson 23 of 73].
This 11-minute video lesson looks at the relative Stability of amides, esters, anhydrides, and acyl chlorides. [Organic Chemistry playlist: Lesson 71 of 73].
This 7-minute video lesson shows how to represent the structures of organic molecules. [Organic Chemistry playlist: Lesson 1 of 73].
This 16-minute video lesson looks at sp3 hybridized orbitals and sigma bonds. [Organic Chemistry playlist: Lesson 13 of 73].
This 14-minute video lesson looks at stereoisomers, enantiomers, diastereomers, constitutional Isomers, and Meso Compounds. [Organic Chemistry playlist: Lesson 24 of 73].
This 13-minute video lesson looks at Zaitsev's Rule for E2 and E1 reactions. [Organic Chemistry playlist: Lesson 40 of 73].
This ChemMatters article provides a history of the study of ozone, a description of an experimental simulation called "The World Avoided," a brief introduction to the chemistry of ozone, an explanation of how ozone is measured, and the difference between "good" ozone in the stratosphere vs "bad" ozone in the troposhere. ChemMatters is an educational magazine published by the American Chemical Society.
This article discusses how scientists' efforts to explain paleoclimate evidence have produced some of the most significant theories of how the Earth's climate system works. Topics include Earth's shifting orbit, and evidence of ancient climates preserved in geologic strata, ocean cores, coninental ice sheets, and tree rings.
This is an activity about detecting elements by using light. Learners will develop and apply methods to identify and interpret patterns to the identification of fingerprints. They look at fingerprints of their classmates, snowflakes, and finally ‰ÛÏspectral fingerprints‰Û� of elements. They learn to identify each image as unique, yet part of a group containing recognizable similarities. The activity is part of Project Spectra, a science and engineering program for middle-high school students, focusing on how light is used to explore the Solar System.
This clickable periodic table give facts about each of the elements. Also, learn the history of the periodic table.
Free online physics, chemistry, biology, earth science and math simulations.
Through this lesson and its associated activity, students explore the role of biomedical engineers working for pharmaceutical companies. First, students gain background knowledge about what biomedical engineers do, how to become a biomedical engineer, and the steps of the engineering design process. The goal is to introduce biomedical engineering as medical problem solving as well as highlight the importance of maintaining normal body chemistry. Students participate in the research phase of the design process as it relates to improving the design of a new prescription medication. During the research phase, engineers learn about topics by reading scholarly articles written by others, and students experience this process. Students draw on their research findings to participate in discussion and draw conclusions about the impact of medications on the human body.
See how light knocks electrons off a metal target, and recreate the experiment that spawned the field of quantum mechanics.
In this lesson students will investigate the physical properties of matter, learn 4 important physical properties of soil commonly tested in Agriculture Studies production and rediscover the 3 components of soil used for the USDA soil classification system.
"Physical science, which encompasses chemistry and physics, deals with matter, energy and forces. Matter has structure, and its components interact. Energy links matter to gravitational, electromagnetic and nuclear forces in the universe. The conservation laws of mass and energy, momentum and charge are addressed in physical science.
This course combines elements of Chemistry 20 and Physics 20 in an integrated hands-on manner to investigate concepts related to heating and cooling, the foundations of chemistry, including the mole and quantitative analysis of molecules and chemical reactions, and the characteristics and properties of electromagnetic radiation. An overarching theme is the study of the enterprise of public and private science as it occurs in agriculture, industry, and universities to help students better understand the physical science related career paths. Student inquiry will guide independent investigations of physical science phenomena."
cK-12 Exploration Series offers Physics and Chemistry simulations to support visualization of abstract concepts. Teachers would need to create an account.
In a class demonstration, the teacher places different pill types ("chalk" pill, gel pill, and gel tablet) into separate glass beakers of vinegar, representing human stomach acid. After 20-30 minutes, the pills dissolve. Students observe which dissolve the fastest, and discuss the remnants of the various pills. What they learn contributes to their ongoing objective to answer the challenge question presented in lesson 1 of this unit.
After a brief history of plastics, students look more closely as some examples from the abundant types of plastics found in our day-to-day lives. They are introduced to the mechanical properties of plastics, including their stress-strain relationships, which determine their suitability for different industrial and product applications. These physical properties enable plastics to be fabricated into a wide range of products. Students learn about the different roles that plastics play in our lives, Young's modulus, and the effects that plastics have on our environment. Then students act as industrial engineers, conducting tests to compare different plastics and performing a cost-benefit analysis to determine which are the most cost-effective for a given application, based on their costs and measured physical properties.
Explore the properties of quantum "particles" bound in potential wells. See how the wave functions and probability densities that describe them evolve (or don't evolve) over time.