Date: Fri, 11 Jun 2004 18:52:42 -0400 (EDT) Subject: Cavalcade of Amazing Science Demonstrations Main Entry: cav·al·cade Pronunciation: "ka-v&l-'kAd, 'ka-v&l-" Function: noun Etymology: French, ride on horseback, from Old Italian cavalcata, from cavalcare to go on horseback, from Late Latin caballicare, from Latin caballus horse; akin to Greek kaballeion horse, Middle Irish capall workhorse 1 a : a procession of riders or carriages b : a procession of vehicles or ships 2 : a dramatic sequence or procession : SERIES Main Entry: -cade Function: noun combining form Etymology: cavalcade : procession == ITINERARY Preliminary Activity: > BSLG: The Spectacular Spectrum - Part 1: Spread the Light (gas discharge tubes + spectroscopes) 1. incandescent light 2. fluorescent light 3. hydrogen 4. helium 5. nitrogen 6. neon (gas tube broken) line of sight | | |-\ | | \ <--- spectroscope | | \ | |____\ v ^ | (small vertical slit) X = light source Related demo ... - Color wheel/fan/white light -- Day 1 - Chem-Related Demos Heat energy in foods: One-timer (Honors, Per. 1) cereal + sodium peroxide & water <-- Still works!!! 1. Cartesian Diver (Diving Tony) 2. Old Foamey 3. Flaming Coffee Creamer 4. Bottle Ba-whoosh 5. Colorful Chemicals (fireworks) Note: Add either "Bending Water" or "The Fireproof Balloon" Day 2 - Pressure Demos ["Got Me Under Pressure" Eliminator (album) by ZZ Top] 1. Can-Crusher (SanForce) 2. Balloon in a Bottle [use clear 10 oz. club soda bottle] Note: Be sure to boil water BEFORE placing balloon on lip of bottle! 3. Karate chop/stick & newspaper 4. Can-o-Air (as air expands, it cools) 5. Cloud in a Bottle 6. Bernoulli Principle (hair dryer & ping-pong ball or 1" diam. styrofoam ball). 7. 35mm howitzer, a.k.a., film can bazooka (action-reaction). Day 3 - Physics Demos 1. "Who Gets Wet?", a.k.a., "Will You be Wet or Dry?" (inertia) 2. Sound Waves (slinky) 3. Beaker Xylophone (sound waves) 4. Giant Bubbles (surface tension) == DAY 1 - CHEM-RELATED DEMOS > "Diving Tony" (Cartesian Diver) http://www.exploratorium.edu/snacks/descartes_diver.html http://www.exploratorium.edu/snacks/condiment_diver/index.html *Test eye dropper as a diver... <-- It works! Better, in fact, because you can see the air inside the dropper is compressed as you squeeze the bottle. Discuss inverse relationship between volume & density. http://www.exploratorium.edu/snacks/descartes_diver.html http://www.exploratorium.edu/snacks/condiment_diver/index.html > The Money Catalyst (a dollar bill as a metaphor for a catalyst) http://nerds.unl.edu/pages/mamres/pages/demos/chemistry/money_catalyst.htm - Paper Clip Catalyst http://www.lessonplanspage.com/printables/PSciencePhysicalAndChemicalReactionsExperiments58.htm > Old Foamey http://www.flinnsci.com/Documents/demoPDFs/Chemistry/CF0398.00.pdf H2O2 --> H2O2 + O2(g) > Another variation (w/o catalyst): http://www.elmhurst.edu/~chm/demos/productionfoam2.htm > Flaming Coffee Creamer (sfc. area) science demos + coffee creamer http://www.usoe.k12.ut.us/curr/science/sciber00/8th/matter/sciber/grain.htm > Bottle Ba-Whoosh! Pour ~25ml rubbing alcohol into a 5gal. H2O bottle. Cover with inverted 250ml beaker. Coat insides of bottle with excess liquid before igniting alcohol vapor. Stand back, citizens! == DAY 2 - PRESSURE DEMOS > (Air) Pressure - Mysterious "Sanforce" used to crush soda can (with my mind) + "balloon in a bottle" (see below re: "gas laws") - The gas laws: Use a flask that a balloon will just fit over its mouth. Place a small amount of water in the flask and just bring it to a boil. Quickly stretch the balloon over the mouth of the flask. Continue heating the flask to make the balloon grow. Remove the flask from the heat and let it cool. The balloon will be pushed into the flask by air pressure. - Related demo ... (hard-boiled) egg in a bottle - Trick: Try to blow up a balloon in two different bottles: one w/o a hole; one w. a small (unnoticeable hole). http://www.elmhurst.edu/~chm/demos/BalooninBottle.html - Karate chop wooden slat & newspaper - Upside down cup of H2O - Bike pump (air heats when it is compressed) & (x)can of compressed air (air cools as it expands) ... Related demo ... - Cloud in a bottle http://www.flinnsci.com/Documents/demoPDFs/EarthSci/ES10108.pdf - Balancing a Ball with a Hair Dryer - ConAir 1875 "Translucence" works well! Features the following settings: hot, warm, cool; high, low, off. [http://www.exploratorium.edu/snacks/bernoulli_levitator.html] - 35mm Howitzer: gas pressure + Newton's 3rd Law of Motion (action-reaction) (x) - Test "Film Can Bazooka" (repurpose either Science Olympiad musical instrument or astronomy kit cardboard tubes) White plastic film containers work better. Use 1,000 ml graduated cylinder as the howitzer. "Fire in the hole!" == DAY 3 - PHYSICS DEMOS > "Who Gets Wet?", a.k.a., "Will You be Wet or Dry?" http://nerds.unl.edu/pages/mamres/pages/demos/denver/wet_or_dry.html > Sound Waves (slinky) http://www.exploratorium.edu/snacks/slinkyinhand/index.html > "Beaker Xylophone" How do you tune a fish (tuna fish)? With the fish (its) scales, of course! Use labeled beakers; tune a "major scale" as follows: LOW-C - 1042 ml (IMO, slightly <990 ml sounds better) D - ~585 ml E - ~510 ml F - 580 ml G - ~410-412 ml A - 310-312 ml B - 295 ml high-c - ~180 ml Twinkle, twinkle, little star: cc gg aa g | ff ee dd c | gg ff ee d | gg ff ee d | cc gg aa g | ff ee dd c Star Wars theme song: C G | F E D high-c G | F E D high-c G | F E F D > Sound tube (Bernoulli Principle, or not) http://www.stevespanglerscience.com/product/1192 Materials: The "Singing Tube" is a popular and inexpensive item in toy stores. There is really nothing to it - a corrugated plastic tube measuring about 3 feet long and 2 inches in diameter. (debunking BP) http://isaac.exploratorium.edu/~pauld/activities/AAAS/aaas2001.html CAN SCREAMER http://www.darylscience.com/Demos/CanScreamer.html > GIANT Bubbles http://www.exploratorium.edu/snacks/bubble_tray.html [students make a weird-shaped "bubble wand"] http://www.exploratorium.edu/snacks/soap_bubbles.html - Bubble in a Bubble http://nerds.unl.edu/pages/sciencedemos/bubble/bubble.htm > Big ball demo (?principle?) - pendulum, PE-KE conversion (some energy lost due to friction) > Torque (open/close door using two different door handles (one closer to hinges) == LEFTOVERS > ?Benham's Disk? http://www.exploratorium.edu/snacks/benhams_disk.html == MISC ONLINE RESOURCES Google search: "science demonstrations" http://www.mrwizardstudios.com/index.htm http://www.supercrawler.com/Science/Physics/Education/Demonstrations/ http://www.physics.ncsu.edu/demoroom/resources.html http://nerds.unl.edu/pages/mamres/pages/demos/demo.html Science Demos (w. slide shows & videos) http://nerds.unl.edu/pages/sciencedemos/index.htm WILL YOU BE WET OR DRY? http://nerds.unl.edu/pages/mamres/pages/demos/denver/wet_or_dry.html Water Rockets! http://nerds.unl.edu/pages/resource/rockets/rocketmanual.html http://nerds.unl.edu/pages/resource/rockets/typicallaunch.html Science Demonstrations Edited by Dr. Charles E. Ophardt Chemistry Department, Elmhurst College, Elmhurst, Il 60126 http://www.elmhurst.edu/~chm/demos/demoh.html EXPLORATORIUM Snacks http://www.exploratorium.edu/snacks/index.html (x) GIANT Bubbles http://www.exploratorium.edu/snacks/bubble_tray.html [students make a weird-shaped "bubble wand"] Bubble in a Bubble http://nerds.unl.edu/pages/sciencedemos/bubble/bubble.htm PHYSICS DEMONSTRATIONS http://sprott.physics.wisc.edu/demobook/intro.htm Fear of Physics http://www.fearofphysics.com/ http://scifun.chem.wisc.edu/HOMEEXPTS/HOMEEXPTS.HTML Home Experiments "These experiments are part of a collection that Professor Shakhashiri distributes to the audience at his annual holiday lecture and at other presentations throughout the year." THE COLLAPSING CAN BENDING WATER SOFT WATER AND SUDS EXPLORING ACIDS AND BASES WITH RED CABBAGE THE FIREPROOF BALLOON FLOATING SOAP BUBBLES CHEMILUMINESCENCE -- COOL LIGHT BLUE SKY -- RED SUNSET RUBBER BANDS AND HEAT REMOVE TARNISH FROM SILVER FIZZING AND FOAMING http://scifun.chem.wisc.edu/HOMEEXPTS/nichols.html SOME SIMPLE SCIENCE WITH EVERYDAY MATERIALS from Lois Nicholson - Balancing Nails on a Nail * - Rolling Coin in Balloon * - Racquet Ball Conserves Energy! - Dropping a Light Ball on Top of a Heavy Ball * - Balancing a Ball with a Hair Dryer - ConAir 1875 "Translucence" works well! Features the following settings: hot, warm, cool; high, low, off. [http://www.exploratorium.edu/snacks/bernoulli_levitator.html] - Dinner Table Optics ? - Deli Optics - Film-Canister Optics - Flashlight Fiber Optics - Lightning in Your Mouth - Coat-Hanger Chimes - Non-Newtonian Fluid Make a thick slurry of cornstarch and water. Unlike ordinary liquids, the slurry will flow easily under a small pressure but resists moving when a sudden or strong force is applied. (Maybe there's a lesson in this about human nature!) http://www.lessonplanspage.com/printables/PSciencePhysicalAndChemical ReactionsExperiments58.htm - MAKE YOUR OWN INSTANT COLD PACK (PHYSICAL) <-- Wrong! - CALCIUM CHLORIDE: A REACTION IN A BAG. (CHEMICAL) > VI. RATE OF CHEMICAL REACTIONS EXPERIMENTS There are several ways to change the rate of a chemical reaction. It can be either sped up or slowed down. There are 4 things that affect the rate of a chemical reaction: 1. Concentration 2. Surface Area 3. Catalysts 4. Temperature - Concentration of vinegar (Balloon Blowing) * - Surface Area (Antacid Tablet Race) ? - Paper Clip Catalyst http://www.lessonplanspage.com/printables/PSciencePhysicalAndChemicalReactionsExperiments58.htm - Heat (Dry Ice Film Poppers) - Flaming Coffee Creamer (sfc. area) science demos + coffee creamer http://www.usoe.k12.ut.us/curr/science/sciber00/8th/matter/sciber/grain.htm http://www.google.com/url?sa=U&start=50&q=http://njacs.org/demobcce5.pdf&e=9777 http://www.theteachersguide.com/Sciencedemos1.htm ================================================================= Walter Sanford, Director Carl Sandburg Middle School Center for Sky Awareness 8428 Fort Hunt Road Sandburg Planetarium Alexandria, VA 22308 Fairfax County Public Schools Work: 703-799-6169 -6197 (fax) E-mail: wsanford@wsanford.com Home: 703-765-9392 AMS Project ATMOSPHERE Atmospheric Education Resource Agent & Water in the Earth System (WES) Resource Teacher SCSA, Geosystems, & Camp T-Equity - URL: http://www.wsanford.com/ =================================================================