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Investigating Coin Size Impact on Water Droplets Holding Capacity

Practice experimental design by exploring effects of different coin sizes on ability to hold water droplets. Formulate hypotheses and design experiments to test your theories. Enhance scientific inquiry skills.

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Investigating Coin Size Impact on Water Droplets Holding Capacity

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  1. Experimental Design Turn to page 21 in notebook Title the page: Experimental Design September 9, 2009

  2. Practice writing a testable question……What is the effect of _____(IV) on______(DV)? • EX. You have 3 different types of soil and some radish seeds. What is the effect of different types of soil on the growth of radish seeds? IV= DV= Different types of soil Growth of the radish seeds.

  3. More practice….Write a testable question and then tell what the IV and DV are… • 1. You wonder what surface makes a toy car go the fastest, wood, tile, or carpet? • Question: • IV • DV • 2. You have notebook paper, construction paper, and computer paper and wonder which kind of paper will make the best paper airplane. • Question: • IV • DV

  4. Practice writing a hypothesis… • If __________, then _____________. • 3.What is the effect of fertilizer on plant growth? • 4.What is the effect of hand sanitizer on bacteria growth? • 5.What is the effect of ramp height on how far a marble will roll?

  5. On Page 20, title it: Water Drop Test 9/9/09 • Write a testable question for the following: • You wonder which type of coin can hold the most water droplets. What is the effect of coin size on the number of water droplets it can hold? IV: DV: Coin size Number of water drops Hypothesis: If __________________ then _______________________.

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