Warm-up~ Observation Challenge Mystery Observation Science\Balloons.ppt Get your ISN: Take out a half sheet of paper and number it Do NOT write your warm-up in your interactive notebook!

Inferences and Observations “You can observe a lot just by watching” -Yogi Berra (famous baseball player) Goal: Describe the scientific processes of observing and inferring

Observations use one or more of your senses (sight, hearing, smell, taste and touch) to gather information about the world. Qualitative: Descriptions that do not use numbers (colors, smell, taste, textures, sounds). Quantitative: Observations that use numbers (counting, measuring, weighing).

Tips for making observations: –Use your five senses…i.e. qualitative –Whenever possible, count or use measuring tools to make quantitative observations. Estimate if no tools are available! Make sure that your observations are accurate and objective!

Do the following describe qualitative or quantitative observations? 1- The bird has 2 wings. 2- Ms. J has Blue eyes. 3- The flower has 7 petals. 4- The fish feels slimy. 5- The sloth weighs 217lbs. 6- The red flower has 2 green leaves on its stem. 7- The egg smells. 8- The road is long Quantitative 2. 2.Qualitative 3. 3.Quantitative 4. 4.Qualitative 5. 5.Quantitative 6. 6.Both~ Red flower (qualitative, 2 leaves~ quantitative) 7. 7.Qualitative 8. 8.Qualitative (How long?)

How could you make the following example into a quantitative one? The fish is smelly. Ex: Add a scale, such as 1-5, 5 being the worst. What would be wrong with an observation such as “the burning bag smelled nasty”? Nasty is a relative term. What is nasty to one, is not to another. To correct this, we would change it to: The burning bag smelled like rotten eggs

Take a minute to list some observations of the given picture.

ISN Entry Cut out your notes and glue them on page 24 in your isn. Once you have finished gluing you will need to create a venn diagram on the left side of your notebook. An example diagram will be shown on the next slide~ please wait until everyone is done gluing and cutting

Venn Diagram~ Comparing Quantitative vs. Qualitative Observations QuantitativeQualitative

Lab Skills Worksheet Warm-Up Get your ISN and the Lab Skills mini-notebook I passed out yesterday (if I didn’t pass them out hrs. 2,5,and 6) you’ll get yours in a minute. Complete the lab skills worksheet page 11 and 12 entitled Quantitative and Qualitative Observations. This will act as a quick review of what we learned yesterday. WORK ON THIS INDIVIDUALLY! We will go over this warm-up in 15 minutes!

Learning Objective: To explain the scientific process of inferring. Open your ISN to page 26. Write the above learning objective and date in the appropriate spots! Follow along with your notes and fill in necessary information as I go through today’s lecture. Do not glue or cut anything until we are entirely finished with the lesson!!!

Inferring is the explaining or interpreting of an observation or statement. Inferences are based on past experiences and prior knowledge. They are often changed when new observations are made. –Inferences help to explain our observations!

Tips for making an inference: –Make your inference based on accurate qualitative or quantitative observations. –Combine your observations with knowledge or experience to make your inference. –Try to make more that one logical inference from the same observation. –Decide what new information you need to show whether your inferences are true. –Gather more information…. If necessary. –Be prepared to modify, reject or revise your inference.

Examples: The grass on the school’s front lawn is wet. –Possible Inferences It rained The sprinkler was on There is dew on the grass from the morning A dog urinated on the grass All of these inferences could possibly explain why the grass is wet. They are all based on prior experiences. We have all seen rain, sprinklers, dew, the dog doing its thing…

What inferences could be made from the following observation: “The school fire alarm is going off.” What inferences could be made from the following observation: “Traffic on the highway is moving really slow.”

List some inferences that could be made about this picture.

Lab Skills Warm-up Open your lab skills notebook to page 15.