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Errors? Mistakes? Oh no!!!! Scientific Method Unit Ms. Ava Chiao IISME CK-12.org Independence High School San Jose, CA 95128.

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Presentation on theme: "Errors? Mistakes? Oh no!!!! Scientific Method Unit Ms. Ava Chiao IISME CK-12.org Independence High School San Jose, CA 95128."— Presentation transcript:

1 Errors? Mistakes? Oh no!!!! Scientific Method Unit Ms. Ava Chiao IISME Fellow @ CK-12.org Independence High School San Jose, CA 95128

2 Warm Up (Day 1) (You must answer in complete sentences) 1. Ms. Chiao is making lemonade. She needs to put the right amount of water, lemon juice and sugar into the mix to make it taste delicious. Delicious means not too sour or too sweet. She also has a bottle of store bought lemonade to compare to. a. What is the control? b. What is the independent variables? c. What is the dependent variable?

3 (yes, time to take notes; direct instruction) IV. Experimental Errors - Systematic vs. Random Errors A. Systematic Error 1. Procedural - Did you miss a step? Did you follow directions correctly? Did you go in the right order? Did you measure it correctly? 2. Material - Did you use the right materials? Was it too much or not enough? Scientific Method

4 3. Instrumental - did you use the right equipment, was it working? Was the table uneven? 4. Enviornmental - Did the temperature change? Was there wind blowing? 5. Human - Was the hand shaking when you measured the liquid? Were you wearing your glasses? Was it an accident? Scientific Method

5 B. Random Error - unpredictable measurement - experimenter interpretation of an instrumental reading. Scientific Method

6 Guided Instruction Scientific Method

7 The cookie experiment Ingredients 2 1/4 cups all-purpose flour 1 teaspoon baking soda 1 teaspoon salt 1 cup (2 sticks) butter, softened 3/4 cup granulated sugar 3/4 cup packed brown sugar 1 teaspoon vanilla extract 2 large eggs 2 cups (12-oz. pkg.) NESTLÉ® TOLL HOUSE® Semi-Sweet Chocolate MorselsNESTLÉ® TOLL HOUSE® Semi-Sweet Chocolate Morsels 1 cup chopped nuts Directions PREHEAT oven to 375° F. COMBINE flour, baking soda and salt in small bowl. Beat butter, granulated sugar, brown sugar and vanilla extract in large mixer bowl until creamy. Add eggs, one at a time, beating well after each addition. Gradually beat in flour mixture. Stir in morsels and nuts. Drop by rounded tablespoon onto ungreased baking sheets. BAKE for 9 to 11 minutes or until golden brown. Cool on baking sheets for 2 minutes; remove to wire racks to cool completely. PAN COOKIE VARIATION: Grease 15 x 10-inch jelly-roll pan. Prepare dough as above. Spread into prepared pan. Bake for 20 to 25 minutes or until golden brown. Cool in pan on wire rack. Makes 4 dozen bars.

8 Warm Up (Day 2) (You must answer in complete sentences) Big Sur Pizza from Pizza my heart. Big Sur Ingredients: 40 Cloves of Roasted garlic, Organic Tomato Pizza Sauce, Pepperoni, Sausage, Portobello Mushrooms & Green Onions What went wrong?

9 Marble Run Project Materials (each group) 1 cardboard platform 1 biology book 5 strips of tagboard paper masking tape 1 timer 1 marble 1 Marble Run data/reflection sheet

10 Bibliography Bhatt, Mahima. "The Game of Marbles." lets-play-a-game!. lets-play-a- game.ning.com. 22 Dec, 2011. Web. 31 July, 2012. http://lets-play-a- game.ning.com/profiles/blogs/the-game-of-marbles-2 Chef David. "David's Cookies 4 lb. Deep Dish Chocolate Chip Cookie Cake." HSN. Home Shopping Network. Web. 9 Jul 2012. http://www.hsn.com/kitchen-dining/davids-cookies-4-lb-deep-dish- chocolate-chip-cookie-cake_p-3787247_xp.aspx Cookie-smart.com. "How Not to Make Chocolate Chip Cookie." Cookie Smart. www.cookie-smart.com, 2012. Web. 9 Jul 2012. http://www.cookie- smart.com/make-chocolate-chip-cookies.html Kovar, David. "San Francisco: We try Award-Winning Pizza at Bay Area Chain Pizza My Heart." slice.seriouseats.com. 28 June, 2012. Web. 31 July, 2012. http://slice.seriouseats.com/archives/2012/06/san-francisco-the-award- winning-pizza-at-bay-area-chain-pizza-my-heart.html Linda, Burgett. "My Kind of Cooking." Blogger.com. MyKindofCooking.com, 2010. Web. 9 Jul 2012. http://mykindofcooking.blogspot.com/2010/12/tates-famous-chocolate-chip- cookie.html

11 Bibliography McBride, Tess. U.S. Fish and Wildlife. "Biologists measure the fish before the experiment" www.public-domain-image.com, N.D. Web. 31 July, 2012. http://www.public-domain-image.com/science-public-domain-images- pictures/biology-pictures/biologist-measure-the-fish-before-the- experiment.jpg.html Pizza My Heart. "Award Winning Pizzas." Pizzamyheart.com. www.pizzamyheart.com, 2012. Web. 31 July, 2012. http://pizzamyheart.com/Pizza_My_Heart_Menu.html S&S. "Tissue Paper Strips." www.ssww.com, 2012. Web. 31st July, 2012. http://www.ssww.com/item/tissue-paper-strips-GP118240/ Science Department, East Side Union High School District. "Project BOOM!". Graduated Release of Responsibility Training Summer 2012. San Jose, CA. 15 June, 2012. Paper Packet. 9 July, 2012. Scurvydogs, "Michelle in Panama" www.searunner.sv-timermachine.net. 23 Feb, 2007. Web. 31st July, 2012. http://searunner.sv- timemachine.net/2007/02/michelle-in-panama/

12 Bibliography Sommer, Angie. "Pizza" Take the Kids to Pizza My Heart to make their own pizza on Tuesday nights. www.examiner.com. 1 June, 2012. Web. 31 July, 2012. http://www.examiner.com/article/take-the-kids-to-pizza-my-heart-to- make-their-own-pizza-on-tuesday-nights Tollhouse, Nestle. "Chocolate Chip Cookie Bites." VeryBestBaking.com. VeryBestBaking.com, n.d. Web. 9 Jul 2012. http://www.verybestbaking.com/recipes/140590/Chocolate-Chip-Cookie- Bites/detail.aspx Toll house, Nestle. "Original chocolate chip cookies." Very Best baking.com. Truste, 2011. Web. 9 Jul 2012. http://www.verybestbaking.com/recipes/18476/Original-NESTL%C3%89- TOLL-HOUSE-Chocolate-Chip-Cookies/detail.aspx U.S. Department of State, “Chapter 5: Seven Norms of Collaborative Work”. www.state.gov 2012. Web. 5 Aug, 2012. www.state.govhttp://www.state.gov/m/a/os/43984.htm


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