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# 7th grade august 20th, 2010

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### 7th grade august 20th, 2010

1. 1. Friday, August 20th<br />Warm-up:<br />What are the steps of the scientific method?<br />Homework: Project brainstorm<br />
2. 2. Answers to warm-up<br />Question<br />Observe/ research<br />Hypothesis<br />Experiment<br />Results<br />Conclusion<br />Communicate the Results<br />Questions?!?<br />
3. 3. Get a red textbook<br />
4. 4. What is Technology?<br />The products and processes that help us get our needs.<br />The tools and methods for creating products and processes<br />Any product, process, or knowledge that is created when a need is met<br />(computer, coffee maker, hearing aide)<br />
5. 5. Interactive notebook pg. 5<br />Write the following questions<br />What are three types of models used by scientists?<br />What are some ways scientists use models?<br />How do models differ from the object it represents?<br />What is the difference between a theory and a law?<br />Can theories change?<br />
6. 6. Scientific Models<br />What is a model?<br />A model is something that scientists use to represent an object or process<br />Ex: Cells, Human body, buildings<br />There are Three Types of models<br /> Physical Models<br /> Mathematical Models<br /> Conceptual Models<br />
7. 7. Physical Model<br />This type of model you can touch and see. For example a model of the solar system.<br />
8. 8. Mathematical Model<br />A mathematical model is made up of mathematical equations and data.<br />Weathermen use this type of modeling with computers to make weather predictions<br />
9. 9. Conceptual model<br />A conceptual model is used to help explain ideas. Ex. Animal Behavior<br />Scientists use conceptual models to predict how an animal will behave.<br />
10. 10. What are some differences between models and the real objects?<br />Size – solar system made smaller<br /> cells are made larger<br />Strength – dinosaur models will never tell how strong they were.<br />
11. 11. How are models helpful?<br />Models can be used to help explain theories.<br />A theory explains why something happens and what will happen in the future. It is based on observation and testing.<br />Theories can be proven wrong new theories can be made.<br />
12. 12. Scientific Laws<br />When a theory and a model correctly predict the results of many different experiments the theory is considered a law.<br />i.e THE LAW OF GRAVITY<br />If I throw something in the air, it will come back down every time.<br />
13. 13. I.N. Intro to Engineering<br />
14. 14. Ask<br />What is the problem?<br />What have others done?<br />What are the constraints?<br />
15. 15. Imagine<br />What are some solutions?<br />Brainstorm ideas.<br />Choose the best one.<br />
16. 16. Plan<br />Draw a diagram.<br />Make lists of materials you will need.<br />Make a prototype – or model - <br />
17. 17. Create<br />Follow your plan and create it.<br />Test it out!<br />
18. 18. Improve<br />Talk about what works, what doesn't, and what could work better.<br />Modify your design to make it better.<br />Test it out!<br />