1. 73 Choosing a Safe Vehicle

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3. 73 Choosing a Safe Vehicle Key Vocabulary evidence advantage disadvantage trade-off

4. 73 Choosing a Safe Vehicle Brainstorm Brainstorm and write down the first ten things that come to mind when you see the words “car accident.” What do car accidents have to do with science? What measurements do you think scientists and engineers find useful when studying car safety and accidents? Record your answers in your notebook.

5. 73 Choosing a Safe Vehicle Read the introduction and look for key ideas

6. 73 Choosing a Safe Vehicle Which vehicle do you think is safer?

7. 73 Choosing a Safe Vehicle Complete procedure steps 1-2

8. 73 Choosing a Safe Vehicle Complete procedure steps 3-7

9. 73 Choosing a Safe Vehicle Share your results with the class

10. 73 Choosing a Safe Vehicle Analysis question 1 Compare the features you listed in Step 2 to the features listed on Student Sheet 73.1. How are they: a.similar? b.different?

11. 73 Choosing a Safe Vehicle Analysis question 2 For each feature on Student Sheet 73.1 that you drew an “X” next to, explain why you decided it was less important.

12. 73 Choosing a Safe Vehicle Analysis question 3 What factors other than safety do people consider when buying a car?

13. 73 Choosing a Safe Vehicle Analysis question 4 Do you think car features can: a.reduce damage, injuries, and fatalities in car accidents? Explain. b.prevent accidents? Explain.

14. 73 Choosing a Safe Vehicle Analysis question 5 Which vehicle do you think is safer – Vehicle 1 or Vehicle 2? Explain what data convinces you that this vehicle is safer than the other one.

15. 73 Choosing a Safe Vehicle Have you changed your mind about anything since doing the activity? Share your answer with the class.

16. 73 Choosing a Safe Vehicle What are some questions about car accidents and car features that you would like answered to help you decide what makes a safe car? Share your answer with the class. Compile a list of questions.

17. 73 Choosing a Safe Vehicle Which vehicle do you think is safer?

18. 73 Choosing a Safe Vehicle Key vocabulary definitions Evidence - Factual information or data that supports or refutes a claim. Advantage - A property that, in your opinion, is good. Disadvantage - A property that, in your opinion, is not good.

19. 73 Choosing a Safe Vehicle Key vocabulary definitions Trade-off - An exchange of one outcome for another—giving up something that is a benefit or advantage in exchange for something that may be more desirable.