About Vail | Beyond Textbooks Founded in 1903, the Vail School District was once a ranching community with a one-room schoolhouse. Now, over one hundred years later, the Vail School District continues to serve the community with the old-fashioned values of hard work and high standards, but in modern mediums and with up-to-date methods. Because the Vail/SE Tucson region of Southern Arizona has experienced immense residential and commercial growth over the past decade, the Vail School District is now one of the fastest growing districts in Arizona. As new schools are built and old ones trek forward in the pursuit of academic excellence, the Vail School District is careful to continuously scrutinize what is best for students and families in light of the ever-changing cultural and generational paradigm. It is the mission of the Vail School District to “provide parents with safe and nurturing school communities where their children can obtain a quality education.”
Seven Layer Density Column Measure 8 ounces of each type of liquid into the 9 ounce portion cups. You may want to color each of the liquids to make a more dramatic effect in your column. Light Karo syrup is easier to color than dark syrup. The only liquids that you may not be able to color are the vegetable oil and the honey. Start your column by pouring the honey into the cylinder. The same amount of two different liquids will have different weights because they have different masses. To test this, you might want to set up a scale and measure each of the liquids that you poured into your column. ** NOTE: The numbers in the table are based on data from manufacturers for each item. The table shows the densities of the liquids used in the column as well as other common liquids (measured in g/cm3 or g/mL). Density is basically how much "stuff" is smashed into a particular area... or a comparison between an object's mass and volume. Have you found a way to make more than seven layers in your column?
Gold and Silver Pennies Chemistry Project All you need are a couple of common chemicals to turn your normal copper-colored pennies (or other mainly-copper object) from copper to silver and then to gold. No, the coins won't really be silver or gold. The actual metal involved is zinc. This project is easy to do. While I don't recommend it for very young kids, I'd consider it appropriate for kids ages third grade and older, with adult supervision. Watch the Video of This Project Materials Needed for this Project clean pennies zinc metal (preferably powder) sodium hydroxide or sodium hydroxide solution tweezers or tongs container of watersource of heat/flame Note: Supposedly you can substitute galvanized nails for the zinc and Drano™ for the sodium hydroxide, but I was unable to get this project to work using nails and drain cleaner. How to Make Silver Pennies Pour a spoonful of zinc (1-2 grams) into a small beaker or evaporating dish containing water. How to Make the Silver Pennies turn Gold Grasp a silver penny with tongs.
Kemikalendern | Moleclues 2.0 Kemikalendern är ett samarbetsprojekt mellan Molecular Frontiers, Chalmers, Göteborgs universitet och Universeum, i samband med det Internationella Kemiåret 2011. För var och en av årets månader berättar en rolig och inspirerande film om kemins roll i våra liv. Innehållet i filmerna följer de månadsteman Kemistsamfundet satt upp (se nedan). Till var och en av filmerna hör nedladdningsbart undervisningsmaterial, med fakta och laborationer som kan utgöra grunden för en rolig lektion med utgångspunkt från filmen! NYHET! Januari: Konst och kultur Se filmen! Ladda ner undervisningsmaterial (Pdf, A4-format, 740 kB) Uppdaterad 11 mars, 2011 Se en film som demonstrerar experimentet "Indigo" Februari: Mode Ladda ner undervisningsmaterial (Pdf, A4-format, 768 kB) Se en film som demonstrerar experimentet "Kristallodling" Mars: Klimat och Energi Ladda ner undervisningsmaterial (Pdf, A4-format, 517 kB) Uppdaterad 14 april, 2011 Se en film som demonstrerar experimentet "Kemi och elektricitet" April: Industri
Seven-Layer Density Column | Science Experiments | Steve Spangler Science Anyone can stack blocks, boxes, or books, but only those with a steady hand and a little understanding of chemistry can stack liquids. How Does It Work The science secret here is density. Density is a measure of how much mass is contained in a given unit volume (density = mass divided by volume). If mass is a measure of how much “stuff” there is in an object or liquid, density is a measure of how tightly that “stuff” is packed together. Based on this density equation (Density = Mass ÷ Volume), if the weight (or mass) of something increases but the volume stays the same, the density has to go up. The numbers in the table are based on data from manufacturers of each item. Take It Further If you want to create an even cooler science burrito, add the “meat and black olives.” Safety Information Lamp oil is a flammable liquid and must be handled with care.