Physical Sciences. Life Sciences. General Science. Nature Study. Schools Science Clips. Dinosaur Toothpaste PC2 CON-7 — Supercharged Science OPT. Hydrogen peroxide is used to fuel rockets, airplanes, and other vehicle engines.
Chemistry teachers everywhere use it to demonstrate what a catalyst is. To speed up a reaction without altering the chemistry of what’s going on in the reaction involves adding a catalyst. A catalyst changes the rate of reaction but doesn’t get involved in the overall chemical changes. For example, leaving a bottle of hydrogen peroxide outside in the sunlight will cause the hydrogen peroxide to decompose. However, this process takes a long time, and if you don’t want to wait, you can simply toss in a lump of charcoal to speed things along. The carbon is a catalyst in the reaction, and the overall effect is that instead of taking two months to generate a balloon full of oxygen, it now only takes five minutes. A catalyst can also slow down a reaction. In this experiment, you’ll see that there’s a lot of oxygen hiding inside the peroxide – enough to really make things interesting and move around! PlanetQuest - The Search for Another Earth. SRCP-Syllabi by topic.
John Polkinghorne Q&A. Materials. Christians in Science. ASA Homeschool Science Resources. In the last post, Drafting a subject-topic index, I presented a heavily pruned draft of a subject-topic index.
In this post I provide a longer, unpruned version. I believe our goal is to arrive at a list that is somewhere in between these two extremes. This index came from several sources. First topics were found from syllabuses and curricula. State standards were were briefly examined. I worked on the list as an outline. The subjects of ‘Technology and Applied Science’, ‘Science as Study’, ‘Science and Christianity’ have not been repeated for this post.
Some of these levels are more natural than others. I could use feedback. –Patrick The Outline Astronomy The Cosmos Galaxies and Stars The Solar System Discovery and exploration Sun Planets (Inner planets and Outer planets) * Mercury * Venus * Mars * Jupiter * Saturn * Uranus * Neptune Asteroid belt Dwarf Planets Comets Kuiper belt Earth Science Earth’s Properties, Structure, Composition Seasons Solar intensity Latitude The Earth’s surface. American Scientific Affiliation. Science Timeline Marks in the evolution of science. 5E Lessons. Scienceinquirer - freestuff. Here is the full list of links to free resources for science teachers online.
Please add your comments and your own links to free stuff by clicking on "Discussion". You may be notified by email any time new discussions are added by clicking the "notify me" tab. If you are a science teacher you can download or request all of these items online or by filling out a form and making a request. If you have suggestions for more free science teacher resources, add them to the discussion page or email mhorton. If you come across a dead link or an expired offer, please let me know also. 909.397.4420IRIS Seismology PosterBusiness posters, many of which apply to education. Outstanding Science Trade Books for Students K-12.
Science Books Online. What is a Typical Scientist? Gag Gifts, Teacher Gifts, Doctor Gifts, Gifts for Girlfriends and Boyfriends.