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

Bellwork 9-16-14Bellwork 9-16-14Pick up a Need to Know sheet from Pick up a Need to Know sheet from

the back counter. Begin working the back counter. Begin working silently.silently.

When you finish, take out your study When you finish, take out your study guide.guide.

AgendaAgenda

1.1. Bell Work (Need to Know)Bell Work (Need to Know)

2.2. Vocabulary ReviewVocabulary Review

3.3. Study GuideStudy Guide

4.4. Inquiry & Engineering Review GameInquiry & Engineering Review Game

5.5. Exit TicketExit Ticket

What questions do you What questions do you have?have?

Let the games begin!Let the games begin!

Every group will send one player for each question.Every group will send one player for each question.

Everyone in your group has to answer before you Everyone in your group has to answer before you can answer again.can answer again.

Every group gets 1 point for a correct answer. The Every group gets 1 point for a correct answer. The group who has the correct answer first will receive group who has the correct answer first will receive 2 points.2 points.

Question 1Question 1

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

• HypothesisHypothesis


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

•Create a prototypeCreate a prototype


•What is a controlled What is a controlled experiment?experiment?

•An experiment that tests An experiment that tests only one factor at a time.only one factor at a time.


•What is included in the What is included in the conclusion of an experiment?conclusion of an experiment?

•They hypothesis is compared They hypothesis is compared with the actual results.with the actual results.


•What is an independent What is an independent variable?variable?

•The variable the scientist The variable the scientist chooses to change in order chooses to change in order to test a hypothesis.to test a hypothesis.


•What is a control factor?What is a control factor?

•A part of an experiment A part of an experiment that stays the same for that stays the same for each group.each group.


• What is a dependent variable?What is a dependent variable?

• The result of an experiment. A The result of an experiment. A change that occurs because of change that occurs because of the independent variable.the independent variable.

Question 8Question 8• A scientist investigates the effect of A scientist investigates the effect of

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

• The amount of carbon dioxide in each The amount of carbon dioxide in each container.container.


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

• The heart ratesThe heart rates


• What tool should you use to What tool should you use to compare the masses of two compare the masses of two mineral samples?mineral samples?

• A triple beam balanceA triple beam balance


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

• Too many variables were changed.Too many variables were changed.


•What is a prototype?What is a prototype?

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

Question 13Question 13• Medical researchers are developing a wireless Medical researchers are developing a wireless

blood pressure monitoring system for use in blood pressure monitoring system for use in hospitals. This system allows nurses to measure hospitals. This system allows nurses to measure a patient’s blood pressure without awakening a patient’s blood pressure without awakening the patient. Which is the intended benefit of the patient. Which is the intended benefit of this technology? this technology?

A Patients will not be disturbed. A Patients will not be disturbed.

B Patients will have to take fewer medications. B Patients will have to take fewer medications.

C Patients can experience pain relief. C Patients can experience pain relief.

D Patients can avoid having surgery. D Patients can avoid having surgery.


• Which of these is an unintended consequence of Which of these is an unintended consequence of the development of the automobile? the development of the automobile?

A faster transportation A faster transportation

B increase in available energy B increase in available energy

C decrease in air pollution C decrease in air pollution

D increase in air pollution D increase in air pollution


• A cochlear implant is a device that can be A cochlear implant is a device that can be used to restore hearing in some deaf people. used to restore hearing in some deaf people. What type of technology is a cochlear implant? What type of technology is a cochlear implant?

A biofuel A biofuel

B adaptive device B adaptive device

C assistive device C assistive device

D prototypeD prototype


• Which is the best example of an adaptive Which is the best example of an adaptive bioengineered product? bioengineered product?

A sugar can that is processed to make fuel A sugar can that is processed to make fuel

B mules that are bred from horses and donkeys for B mules that are bred from horses and donkeys for farm work farm work

C ladybugs that are raised to eat garden pests C ladybugs that are raised to eat garden pests

D eyeglasses that are used to correct near-sighted D eyeglasses that are used to correct near-sighted vision vision


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

Documents

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