Atoms What is an atom? An atom is made up of protons, electrons and neutrons. The mass of an atom is found in the nucleus, since the neutrons and protons each weigh considerably more than the electrons orbiting it. The electrons can be removed or shared with other atoms without having a great impact on the mass of a chemical, and therefore it is through movement of electrons that chemical reactions take place. Concepts of Physical Science Concepts of Physical Science is a project-based course. Physics concepts are presented in a basic manner requiring math skills. This course is designed to be a hands-on class. Concepts Course Outline.docx Curriculum
The Hardest Thing To Find In The Universe? What is rarer than a shooting star? Rarer than a diamond? Rarer than any metal, any mineral, so rare that if you scan the entire earth, all six million billion billion kilos or 13,000,000,000,000,000,000,000,000 pounds of our planet, you would find only one ounce of it? What is so rare it has never been seen directly, because if you could get enough of it together, it would self-vaporize from its own radioactive heat?
Freezing point depression and boiling point elevation: the effects of solutes and of pressure Freezing point depression is the lowering of the equilibrium freezing or melting temperature by solutes in the liquid phase. Solutes in the liquid phase also raise the equilibrium boiling temperature. Pressure also affects freezing temperature (a little) and boiling temperatures (a lot). This page gives a simple, non-mathematical explanation of all these effects.
Chemistry Interactive Video Animations Chemistry Based Animations These animations support the teaching of concepts in chemistry in freshman through graduate level courses. Some of the QuickTime movie are without audio, and some of the audio--from a few of the sound augmented QuickTime movie--has been stripped and made available in Real Audio's streaming audio format. The chemistry courses that profit from these sorts of multimedia content include instrumental analysis, environmental chemistry, atmospheric chemistry and air quality. Metal Ion Flame Test Colours Chart This graphic looks at the colour of various metal and metalloid ions that occur during flame tests. Most people probably remember doing this experiment in school chemistry lessons, if not with the full range of ions shown here, but for the uninitiated a brief explanation of the origin of the colours follows. Flame tests are utilised in chemistry to identify the metal ions present in compounds. They are more useful for some metals than others; particularly for the Group 1 metals, however, they provide a good way of quickly identifying the metal present.
Newton’s 3 Laws, with a bicycle - Joshua Manley There was this fellow in England named Sir Isaac Newton. A little bit stuffy, bad hair, but quite an intelligent guy. He worked on developing both calculus and physics at the same time. How Does an Orange Peel Pop a Balloon? Chemistry, of Course! By Tom Kuntzleman, Tori Talaski and Charles Schaerer There is a new experiment circulating the web. Check it out: Isn’t that cool? The juice from an orange peel causes a balloon to pop. When I first saw this effect I immediately thought to myself, “what is the chemistry involved in this experiment?” Atomic Theory II The earliest ideas about matter at the atomic level were built over many centuries. Starting with the ancient Greeks, and moving through to the beginning of the 19th century, the story unfolds relatively slowly. (You can read more about this is in our modules Early Ideas about Matter: From Democritus to Dalton and Atomic Theory I: The Early Days.)
Chemistry & Physics Streaming In addition to watching the videos in this site, Georgia teachers and students can stream Chemistry: A Study of Matter and Physics Fundamentals from GPB Education Streaming by plugging in the search term 'GPB Classroom' and select an episode to stream live or download. You may also stream the videos through PBS Learning Media by searching for Chemistry & Physics. Chemistry & Physics consists of two series teaching high school college preparatory chemistry and physics. Chemistry: A Study of Matter and Physics Fundamentals provides instructional content delivered through thirty-minute episodes and integrated classroom materials. Episodes provide content while giving cues for the classroom teacher to pause the program and interact with students, engaging them in discussions, problem-solving, and laboratory activities.
The science of macaroni salad: What's in a molecule? - TedED Isn't it funny that many of the things that make up our food is what also makes up the world around us? Check out this list of the ten most abundant elements in the Earth's crust. Now, check out the list of the most abundant elements found in our food. Is it true that everything is made up of atoms? Yup! That's right.