1. Bellwork 9-16-14 Pick up a Need to Know sheet from the back counter. Begin working silently. When you finish, take out your study guide.

2. Agenda 1.Bell Work (Need to Know) 2.Vocabulary Review 3.Study Guide 4.Inquiry & Engineering Review Game 5.Exit Ticket

3. What questions do you have?

4. Let the games begin!  Every group will send one player for each question.  Everyone in your group has to answer before you can answer again.  Every group gets 1 point for a correct answer. The group who has the correct answer first will receive 2 points.

5. Question 1 In the Scientific Method, what step comes after Research? In the Scientific Method, what step comes after Research? Hypothesis Hypothesis

6. Question 2 What would an engineer do after they have brainstormed possible solutions and decided on a solution? What would an engineer do after they have brainstormed possible solutions and decided on a solution? Create a prototype Create a prototype

7. Question 3 What is a controlled experiment? What is a controlled experiment? An experiment that tests only one factor at a time. An experiment that tests only one factor at a time.

8. Question 4 What is included in the conclusion of an experiment? What is included in the conclusion of an experiment? They hypothesis is compared with the actual results. They hypothesis is compared with the actual results.

9. Question 5 What is an independent variable? What is an independent variable? The variable the scientist chooses to change in order to test a hypothesis. The variable the scientist chooses to change in order to test a hypothesis.

10. Question 6 What is a control factor? What is a control factor? A part of an experiment that stays the same for each group. A part of an experiment that stays the same for each group.

11. Question 7 What is a dependent variable? What is a dependent variable? The result of an experiment. A change that occurs because of the independent variable. The result of an experiment. A change that occurs because of the independent variable.

12. Question 8 A scientist investigates the effect of carbon dioxide on plant height. The scientist grows plants in several closed containers. All the plants receive the same amounts of water and light, but the air in each container has a different amount of carbon dioxide. What is the independent variable in this experiment? A scientist investigates the effect of carbon dioxide on plant height. The scientist grows plants in several closed containers. All the plants receive the same amounts of water and light, but the air in each container has a different amount of carbon dioxide. What is the independent variable in this experiment? The amount of carbon dioxide in each container. The amount of carbon dioxide in each container.

13. Question 9 A 7th grader is working on a science fair project in which she is testing to see the affects of caffeine on her teammates heart rate. She chose five of her teammates to help with her experiment. She gave each student a different amount caffeine, waited 10 minutes, then measured and recorded their heart rates. What is the dependent variable? A 7th grader is working on a science fair project in which she is testing to see the affects of caffeine on her teammates heart rate. She chose five of her teammates to help with her experiment. She gave each student a different amount caffeine, waited 10 minutes, then measured and recorded their heart rates. What is the dependent variable? The heart rates The heart rates

14. Question 10 What tool should you use to compare the masses of two mineral samples? What tool should you use to compare the masses of two mineral samples? A triple beam balance A triple beam balance

15. Question 11 A student rolled a toy car down a ramp and timed how long it took to reach the bottom. After on trial, the student doubled the height of the ramp and added sandpaper to its surface. The student conducted three more trials. After reviewing the data, the student concluded the height of the ramp had no effect on the speed that the car traveled. Which is the most likely reason this conclusion is flawed? A student rolled a toy car down a ramp and timed how long it took to reach the bottom. After on trial, the student doubled the height of the ramp and added sandpaper to its surface. The student conducted three more trials. After reviewing the data, the student concluded the height of the ramp had no effect on the speed that the car traveled. Which is the most likely reason this conclusion is flawed? Too many variables were changed. Too many variables were changed.

16. Question 12 What is a prototype? What is a prototype? A testable model. The first working model of a product that can be tested and improved upon. A testable model. The first working model of a product that can be tested and improved upon.

17. Question 13 Medical researchers are developing a wireless blood pressure monitoring system for use in hospitals. This system allows nurses to measure a patient’s blood pressure without awakening the patient. Which is the intended benefit of this technology? A Patients will not be disturbed. B Patients will have to take fewer medications. C Patients can experience pain relief. D Patients can avoid having surgery.

18. Question 14 Which of these is an unintended consequence of the development of the automobile? A faster transportation B increase in available energy C decrease in air pollution D increase in air pollution

19. Question 15 A cochlear implant is a device that can be used to restore hearing in some deaf people. What type of technology is a cochlear implant? A cochlear implant is a device that can be used to restore hearing in some deaf people. What type of technology is a cochlear implant? A biofuel B adaptive device C assistive device D prototype

20. Question 16 W Which is the best example of an adaptive bioengineered product? A sugar can that is processed to make fuel B mules that are bred from horses and donkeys for farm work C ladybugs that are raised to eat garden pests D eyeglasses that are used to correct near-sighted vision

21. Question 17 Give an example of an assistive technology. Why is it assistive? Give an example of an assistive technology. Why is it assistive?