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Using this PowerPoint

Using this PowerPoint. This PowerPoint will take the place of a lecture and activity because of textbook checkout. Use the headings in the presentation for your heading in your two column notes. Use the bullet points to take notes in your notebook. Notes will be checked on Wednesday 9/4.

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Using this PowerPoint

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  1. Using this PowerPoint • This PowerPoint will take the place of a lecture and activity because of textbook checkout. • Use the headings in the presentation for your heading in your two column notes. • Use the bullet points to take notes in your notebook. • Notes will be checked on Wednesday 9/4.

  2. Observations How we look at things in science

  3. What is observation? • Observations are made in science. They are made by using: • Senses • Tools • increase accuracy & precision • Facts not opinions.

  4. Two types of Observation • Qualitative • Quantitative

  5. Qualitative Observations • Hard to measure • Describes the qualities of something • Color • Taste • Sound

  6. Quantitative Observations • Can be expressed in numbers • Can be counted or measured • Amounts • Temperature • Mass • Length • Allow us to communicate specifics • Tools are used to communicate data • Observations are collected in data tables

  7. Inference • Drawing a conclusion based on data and observation • The process of drawing a conclusion from given evidence. Practice: • Observations: • I hear people screaming • I smell cotton candy, popcorn, and hamburgers • I see a lot of people • Inference = ?

  8. Observation Inference • That plant is extremely wilted. • The car stopped running • The Diamondbacks are leading their division • That plant is extremely wilted due to a lack of water. • The car stooped running because it was out of gas. • The Diamondbacks are leading their division because they are playing well right now.

  9. When to use observation & inference… • During experiments, record observations NOT inferences • Inferences may be used when writing the conclusion in your lab report.

  10. Directions: Using the Alcatraz picture you received in classdecide if the statements are observations or inferences. Bring the worksheet to class tomorrow! At-Home practice Alcatraz picture

  11. References • www.middleschoolscience.com/...Observation_Inference-isn.ppt • www.learnnc.org/lp/pages/998 • www.nps.gov/.../upload/Questioning_Artifacts-Observation_worksheet.pdf

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