1. Good afternoon! It’s terrific Tuesday! BELL Work (5 min.) 1.Write down HW in planner. 2.Open up your Spiral to p. 14-15 and set up your pages. 3. Copy the questions below to answer while we watch a couple of video clips 1.Describe which videos are based only on observation and which ones involved experimentation. 2.What variables did you see?

2. Video Clips  The best of Shark Week The best of Shark Week  Flapping Fish and Sharks Flapping Fish and Sharks  Diet Coke & Mentos Diet Coke & Mentos 1.Describe which videos are based only on observation and which ones involved experimentation. 2.What variables did you see?

3. Explain different methods Scientists use to conduct investigations. Analyze experiment scenarios to find independent and dependent variables.

4. Quick Reminder: Scientists’ Expectations dignityrespect ngageparticipation on timeprepared standard excellence

5. Yesterday – page 13 Scientific Investigations Experiments Observations In the field No control over conditions In a laboratory or closed space Complete control over conditions or “variables”

6. Yesterday – Page 13 (inside) WordDefinition ObservationProcess of obtaining information using the senses. ExperimentAn organized procedure to study something under controlled conditions. HypothesisA testable explanation that leads to a scientific investigation. Independent Variable The factor in an experiment that is deliberately manipulated (changed on purpose) Dependent Variable The factor that changes as a result of the independent variable. (measured)

7. Variables Practice – Through p. 15 independent dependent constants

8. Engine Type of engine Same car Same track same amount of time driven Distance each car travels

9. Complete the rest of the stations. independent dependent constants

10. Answer check

12. Karen wants to investigate how the thickness of paper affects the flight of a paper airplane. She tests 3 different thicknesses of paper and creates the exact same airplane with each type of paper. She flies them in the same location and measures the distance each one traveled. Draw and Complete the table below Out : Record Answer on page 14