1. Order Specific information about this theory What is a Theory? Is about … Understanding the meaning of a theory So what? What is important to understand about this? Even if a theory survives many tests and observations here is no guarantee that the theory will be accepted by the scientific community A theory is the most logical explanation for events that occur in nature A scientific theory is a powerful, time-tested concept that makes useful and dependable predictions about the natural world When a scientist proposes a theory it must be tested over and over again If a theory survives many tests it may be accepted by the scientific community Theories can be wrong and may be changed after additional tests and/or observations THEORY

2. Events Re-test the hypothesis Name Foot Print Process Copyright 2003 Edwin Ellis www.GraphicOrganizers.com Title Scientific Method State the Problem Beginning Gather information Form Hypothesis Test Hypothesis Analyze data Record data State a conclusion 1 2 3 6 5 4 Steps Ending

3. Main ideas Life Science Physical Science Earth Science Questions at the Microscopic Level How do tiny bacteria invade the body and cause disease? Why are some chemical compounds harmless while others are toxic? Why do some rocks last a million years & others are worn away in a matter of decades? Scientists in all three branches seek truths about the microscopic would around them. Questions at Macroscopic Level How do organisms in an area interact with other organisms & the environment? Why does it take a heavy weight car longer to stop than a light weight one? What forces cause volcanoes to erupt, or earthquakes to occur in certain areas? Scientist in all branches study the world of objects visible to the unaided eye. Questions at the Global Level How do pollutants in the air or water in one part of the world affect life in distant areas? What fundamental forces in nature govern all events in the universe? How can wind patterns throughout the atmosphere help predict weather? Some of the questions scientist seek to answer have a world viewpoint. LS attempts to answer questions dealing with living things and their parts & actions. PS seeks to answer questions about matter & energy, and the make-up of substances. ES examines earth and its rocks, oceans, volcanoes, earthquakes, & atmosphere. Conclusions

4. Test Hypothesis Gather Information State Conclusion Repeat the Work Form Hypothesis State the problem Record Analyze Data Repeat the Work Scientific Method Basic Steps

6. Hierarchic organization structures

7. Our calendar is not the only one that has been invented. Other civilizations have invented different ways to keep track of time (i.e., Mayan, Egyptian, Ancient Greeks, Romans,) Adding the extra day allows us to keep track of days in a way that accounts for how fast the earth is spinning Because of the additional ¼ of a day the Earth takes to complete its orbit, a day is added to February every four years The Earth takes 365 and 1/3 days to complete its orbital path around the sun Why we add an extra day to February every 4 four years Leap Year Is about …