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Baloo's Bugle

 

February Cub Scout Roundtable Issue

Volume 9, Issue 7
March Theme

Why Does It Do That?
Webelos Athlete & Engineer
  Tiger Cub Program

 

WEBELOS

 

ENGINEER  Careers & Bridges
By Barb Stephens

The Right "Man" for the Job!
Use a word from this list to fill in the correct answer.

Aeronautics

Chemical

Computer

City

Agricultural

Electrical

Physical

Industrial

Mechanical

Civil

1.     An engineer who designs plants to make water safe to drink - __________.

2.     An engineer who designs machines in a factory - _________________.

3.     An engineer who tests new processes and checks old ones in a chemical plant - ________________.

4.     An engineer who plans new circuits and directs workers in an electrical plant - ________________.

5.     An engineer who designs and tests new space techniques - ________________.

6.     An engineer who designs and tests new techniques for new equipment for industry - ___________________.

7.     An engineer who designs and tests equipment for farmers and ranchers - __________________.

8.     Bridges & Machines
Use a word from this list to fill in the correct answer.

Catapult

Pulleys

Beam Bridge

Plank Bridge

Truss Bridge

Arch Bridge

Suspension Bridge

Levers

Block & Tackle

Pier Bridge

  1. A flat surface over two supports - ____________.
  2. A flat surface over three or more supports - ____________.
  3. A flat surface over an arched support - _______________.
  4. A flat surface with turned up edges - ______________.
  5. A bridge with sides made up of a series of triangles - ____________.
  6. A bridge that appears to hang from strong strung cables - ___________________.
  7. A pulley(s) and a rope or cable - _________________________.
  8. A slingshot or other device used to project something - ________________.

Rubberbands & Engineering
By Barb Stephens

Rubberband Strength


One of the requirements for engineer is to make a catapult. This requires the use of a rubber band or two, or a piece of tire inner tube. The rubber band is "elastic" and it stretches, but then returns to it's original shape. Before using materials in building, engineers must know the characteristics. Does it expand or contract? Is it weak or strong? Does it burn or not?

You can try an experiment to learn more of the characteristics of rubber bands and other elastic material. Get a collection of different sized rubber bands. Measure them for length, width and thickness (if you can). Make a chart that shows this information and mark each rubber band clearly so you know which is which. (Using colored rubberbands is best.)

With each rubber band, attach one end to a cup hook that is screwed into a board. Attach the other end to a known weight. How far down does each rubber band stretch? Does its thickness change? Does its width change? Which rubberband is the strongest? Which rubberband is the weakest? How can you tell?

Rubber-

band

Original

Stretched

Length

Width

Thickness

Length

Width

Thickness

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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