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Handout Dollar Store Science

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Information about Handout Dollar Store Science
Education

Published on March 12, 2014

Author: genegeek

Source: slideshare.net

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BC Science Outreach Workshop 2014 - Dollar Store Science - Brian Anderson, Lyndsay Fraser and Susan Vickers Handout.
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DIY Science Copyright Science World British Columbia 2014 Page 1 of 4 February 21, 2014 Questions? Brian Anderson – banderson@scienceworld.ca, Lyndsay Fraser – lfraser@scienceworld.ca Demonstration Materials needed Possible Variables Notes Reference Links Fire Horn Clear vinyl tubing (Home Depot, Canadian Tire, Aquarium Stores) Barbecue Lighter (Dollar stores, grocery stores) Tape Filling container (plastic squeeze bottle with tube, dollar store sauce dispenser) Flammable material (Lycopodium powder, Coffee Mate, Corn Starch, Flour) Goggles Fire Extinguisher Type of flammable material Amount of flammable material Strength/speed of air blowing through tube Direction  Ensure that the end of the tube is BEHIND the flame when constructing the apparatus to ensure the flammable material must pass through the flame  When loading the tube, gently shake the tube so the flammable material forms a solid plug. Without this step, it is possible for air to blow past the flammable material and extinguish the lighter before the flammable material begins to move.  Be VERY careful of what direction you are aiming the tube and anything flammable/heat/smoke sensors in the way http://resources.scienceworld.ca/component/taxonomy/combustion From Steve Spangler: http://www.youtube.com/watch?v=TAdElO1FCSM Greek Waiter’s Tray Basket Shoelaces Cup Length of string (laces) Speed of spinning Amount of liquid in the cup Type of liquid in the cup  Watch for any overhead obstructions  Practice out of doors  Start and stop smoothly From Steve Spangler: http://www.youtube.com/watch?v=yyDRI6iQ9Fw No tray Greek Waiter’s Tray Cup Amount of liquid in the cup Type of liquid in the cup  Start with your hand facing away from the direction you will be traveling around the circle.  One revolution is usually plenty

DIY Science Copyright Science World British Columbia 2014 Page 2 of 4 February 21, 2014 Questions? Brian Anderson – banderson@scienceworld.ca, Lyndsay Fraser – lfraser@scienceworld.ca Balloon in Bottle Milk Jar Water Balloon Paper Towel Matches Goggles Fire Extinguisher Tray of water Size of Balloon Size of paper towel/flame Time to put balloon on Size/shape of the jar Texture of the balloon (wet/dry)  We find it works best if you wet the balloon just before you put it on the jar (using tray of water)  We’ve had the best success putting the balloon on the jar just as the flame goes out. http://resources.scienceworld.ca/demonstration/balloon-in-a-bottle Balloon out of bottle (baking soda, vinegar) Balloon in bottle (from previous demonstration) Vinegar Baking Soda Tray (to catch mess) Goggles Size of balloon Size/shape of bottle Amount of vinegar/baking soda Order of adding vinegar/baking soda Position (orientation) of the bottle  We have had more luck adding the baking soda first, then the vinegar, rather than the other way around  Inverting the bottle over the tray helps form a good seal and contain any mess http://www.scienceworld.ca/what-does-baking-soda-do http://resources.scienceworld.ca/pdf/Air/Balloons_act2C02.pdf Egg Drop Egg or small ball Toilet paper cardboard tube (or plastic pipe, apprx 12cm) Plastic cup Water Tray Broom Height of tube Size/weight of egg Position of tray Angle, speed of broom Other methods of knocking the pan away  Ensure that the egg is centred over the cup  Try not to have the broom go past vertical  A teacher at the Feb 21 workshop suggested old CDs as an alternate to the tray. http://resources.scienceworld.ca/demonstration/egg-and-broom-trick Amazing alternate method (Ricky Jay) http://www.youtube.com/watch?v=A4TDeC3DyyM Ball on Ball Large Ball (basketball?) Small Ball (tennis Ball?) Size, material of the two balls Position of the two balls (which one is on top) Adding extra balls (3-4)  Warn people of the possible angles that the ball may travel in http://resources.scienceworld.ca/pdf/energy/ElasticEnergy_3energyballs.pdf Cup and Caribineer Cup (plastic wine glass with stem) Shoelace Caribineer Pencil/dowel Length of string Angle of release Weight of each side  Keep spectators clear of the plane that the caribineer is moving in in case it comes loose http://catalystforscience.ca/pdf/PoS/DiscrepantExplanationsCatalyst2011.pdf (Drop of Doom)

DIY Science Copyright Science World British Columbia 2014 Page 3 of 4 February 21, 2014 Questions? Brian Anderson – banderson@scienceworld.ca, Lyndsay Fraser – lfraser@scienceworld.ca Cup of Water and Lid Plastic cup Water Plastic yogurt/sour cream lid Amount of water in cup Type and shape of cup Materials used as lid Height vs circumference & Martini Glass volume Wine Glass, pint glass, martini glasses (plastic) String for measuring Water Food colouring (as bonus) Books, cards, other props to lift glass Different shaped glasses “Scam School” is a wonderful podcast full of surprising bar bets and tricks, many based on some pretty fun mathematical and scientific principles. Definitely adult oriented so not generally videos that can be shown in class but often interesting for research http://www.youtube.com/watch?v=FAyHrANNpkU Stroop test Poster board Different coloured markers Word and colour combinations Different languages Different fonts Reversing letters, Reversing words http://resources.scienceworld.ca/demonstration/stroop-effect http://resources.scienceworld.ca/perception-and-illusions/illusions PVC Static generators PVC Pipe Wool, Faux Fur, other fabrics Mylar (foil) balloon pieces Packing Peanuts Rice Crispies Material to rub Different types of pipe Different materials to pick up Inside/outside Different days (weather/humidity)  There are tools made for cutting PVC that make the job much easier than a knife or hacksaw: (sample) http://www.homedepot.ca/pr oduct/pvc-cutter/969709 http://resources.scienceworld.ca/component/taxonomy/static%20electricity http://catalystforscience.ca/physical-science/static-electricity-lesson-1 Cabbage Juice Indicators Red Cabbage Hot Water Baking Soda Soap Ammonia Lemon Juice Vinegar Clear containers Concentration of cabbage juice Concentration of test material Different types of test materials  When preparing the cabbage juice, be sure to cut the cabbage, rather than tearing it apart. Cutting releases more juice.  Generally, we will put ¼ pitcher of cabbage pieces to ¾ pitcher of water http://www.scienceworld.ca/sites/default/files/CSC_COL_FamilyScience012 408.pdf http://resources.scienceworld.ca/pdf/perception_illusions/Magic_2moredee ppurple.pdf Balancing Peacock Feather Dowel/sticks Broom Cardboard Tape Length of stick Weight of apparatus Width of apparatus Different types of materials  Remember to focus your eyes on the top of whatever object you are balancing http://resources.scienceworld.ca/activity/balance-rules http://resources.scienceworld.ca/demonstration/balance-illusion http://resources.scienceworld.ca/activity/betcha-can-t-balancing-challenges (Bonus – a unique and beautiful balance act)

DIY Science Copyright Science World British Columbia 2014 Page 4 of 4 February 21, 2014 Questions? Brian Anderson – banderson@scienceworld.ca, Lyndsay Fraser – lfraser@scienceworld.ca Plastic/stuffed toy http://www.youtube.com/watch?v=-KVPA-9hofw Tablecloth Tower Table Fabric (smoother the better) Non Stick Pizza pan Cups Buckets Water Kitty Litter Balloons Height Weight Material for table cloth Alignment of tower  Position the tablecloth so you have the minimum amount of fabric to pull out from the lowermost pan  Be careful not to get the cloth wet  Pull quickly and smoothly http://resources.scienceworld.ca/demonstration/pull-the-tablecloth http://resources.scienceworld.ca/activity/playing-cards-and-pennies

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