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# August 31, 2011

August 31, 2011 . Bellringer: Place in your Homework A 10 ml sample of a substance has a mass of 20 g. What would be the mass of a 100 ml sample of the same substance?. Objectives: Determine the difference between an observation and inference. Agenda Go over Density Worksheet

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## August 31, 2011

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1. August 31, 2011 Bellringer: Place in your Homework A 10 ml sample of a substance has a mass of 20 g. What would be the mass of a 100 ml sample of the same substance?

2. Objectives: Determine the difference between an observation and inference Agenda Go over Density Worksheet Observation/Inference notes Mr. Peanut activity Review for test Homework: Turn in Measurement lab Study for test

3. Observations • recognizing and noting some FACT to gather information about the world

4. You make observations using your five senses • Sight - Detects color, size, and shape. • Hearing - Reaction to moving air • Taste - Sweet, salty, bitter, sour. • Smell - Reaction to gases. • Touch - Reaction to pressure, temperature. • We are not sensitive enough to detect high sounds or radio waves.

5. Observations must be specific and accurate, not relative, so that it means the same to everyone. • Example: • Incorrect - the burning bag smelled nasty • Correct - the burning bag smelled similar to rotten eggs

6. Inference • a possible explanation or guess about an observation • Example: you leave the movie theater and see the ground is wet so you infer that it rained.

7. Mr. Peanut • Wait for directions • When making observations be as specific as possible!

8. Review for Test • http://sciencereviewgames.com/srg/subjects/nos.php

9. Ticket out the Door • Make three flashcards to begin studying for tomorrow’s test! • Reminder: • Test is Tomorrow • Topics include: • Scientific method • Graphing • Measurement • Density • Observation/inference

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