Bellwork 9-16-14

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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.

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Agenda

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

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What questions do you have?
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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.

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Question 1

• In the Scientific Method, what step comes after
  Research?
• Hypothesis

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Question 2

• What would an engineer do after they have
  brainstormed possible solutions and decided on a
  solution?
• Create a prototype

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Question 3

• What is a controlled experiment?
• An experiment that tests only one factor at a
  time.

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Question 4

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

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Question 5

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

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Question 6

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

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Question 7

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

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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?
• The amount of carbon dioxide in each container.

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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?
• The heart rates

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Question 10

• What tool should you use to compare the masses of
  two mineral samples?
• A triple beam balance

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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?
• Too many variables were changed.

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Question 12

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

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Question 13

• Medical researchers are developing a wireless
  blood pressure monitoring system for use in
  hospitals. This system allows nurses to measure a
  patients 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.

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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

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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 biofuel
• B adaptive device
• C assistive device
• D prototype

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Question 16

• 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

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Question 17

• Give an example of an assistive technology. Why
  is it assistive?