1. Bell Work: 1/7/15 O Using my portaportal under “Billy Goat Survival Challenge”, read the article “Golden Gate Bridge”. The Golden Gate Bridge sits less than eight miles from the epicenter of the most catastrophic earthquake in history. What did engineer Joseph Strauss do to make this bridge so indestructible? O Use evidence from the text to justify your answers.

3. Objectives O Write in agendas:  Billy Goat Survival Challenge  Safety Test Friday! O Check notebooks for:  Ask, Imagine, Plan

4. Billy Goat Survival Challenge O You decide to help the Billy goats reach the opposite side of the creek so they can eat. O You must create a model structure to help the Billy goats get from one side to the other, while using the Engineering Design Process and only the materials provided. O Your teacher will also provide you with model Billy goats, with specific weights, that your bridge must be able to withstand. O A model that can withstand the most weight, weighs the least, and has the best physical appearance should be the goal of all teams.

5. Challenge Specifications O The creek/stream is 16” wide. You model structure may be that length or longer. O The model structure must allow the billy goats to cross a ravine that is 5” deep. O The weight of the billy goats are as follows: O Small Billy Goat= 2 lbs. O Medium Billy Goat= 4 lbs. O Big Billy Goat= 6 lbs.

7. Essential questions to ponder… See any important vocab?

9. Use a Post-It Note to “tweet” about the following question: Use a Post-It Note to “tweet” about the following question: What are your control factors for the experiment? What are your variables? Tweet a response…