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Observation, Inference & Predicting Describing & Explaining

Observation, Inference & Predicting Describing & Explaining. “I CAN” Explain difference between Observation & Inference Identify scientific skills and attitudes used to learn about the world around us. What Is Science?. A special way of investigating & explaining the natural world

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Observation, Inference & Predicting Describing & Explaining

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  1. Observation, Inference & PredictingDescribing & Explaining “I CAN” Explain difference between Observation & Inference Identify scientific skills and attitudes used to learn about the world around us

  2. What Is Science? • A special way of investigating & explaining the natural world • Based on factual evidence provided by observation and data. • Qualitative –vs- Quantitative • Relies on observing, inferring, & predicting • Scientific ideas can be tested

  3. What are Observations? • Seeing • Hearing • Feeling • Tasting • Smelling

  4. Observations & Inference

  5. Scientific Attitudes • Curiosity: A desire to know • Honesty & Integrity: fairness and good conduct • Open-mindedness: Receptive to argument or new ideas • Skepticism: An attitude of doubt • Creativity: having the ability to create new ideas, models, think outside the box

  6. Inference, Hypothesis & Predicting • When you try to explain or interpret things • Educated Guess • Predicting is making a forecast of what you believe will happen in t he future basses on prior experiences. • Example: You wake up and see water droplets on your window. Inference is? • Prediction Is?

  7. Panama Canal 1904 - 14 • French Tried 1st • 22 thousand died • Teddy Rosevelt Elected • Military Priority to connect oceans • Dr. William Gorgas sent to keep deaths down • Gorgas Believed Malaria & Yellow Fever Transmitted by Mosquitoes. • Drained Swamps, Released Minniows, Cut Vegetation • Only 7 Malaria Deaths Over Next Two Decades

  8. Big Bang Theory • Stars in Space Around Earth were though to be arranged like layers of an onion • 1920’s Astronomer Edwin Hubble Discovered Stars Part of Galaxies & Galaxies Were Moving • “Inferring” That if Galaxies Were Moving Apart They Must Have All Been Together Once • “Big Bang” Theory Developed- Think Fireworks • By Working Backwards From Expansion Rate He Calculated Universe Was Around 13 Billion Years Old

  9. Pasteurization • Louis Pasteur found bacteria in spoiled food. • He inferred / hypothesized that bacteria caused food to spoil. • Predicted that if he could kill bacteria food would not spoil. • Experiments showed that heat kills bacteria. • Today milk is heated or Pasteurized to make milk last

  10. Science Is Always ChangingWhy? • As new ideas, observations, technology, data is collected, theories can change • This is good for the advancement of science

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