Science Chapter Two - Technology

Think of a pair scissors.  What is the best description of this complex machine?

•  a wedge and a lever
• two cutting wedges and two levers that move the wedges
• two wedges held together by a wheel and axle
• two inclined planes and two levers

An inventor decides on a solution to a problem.  What happens next?

• He designs a prototype.
• He communicates his results.
• He redesigns the prototype.
• He does research.

What can you do with a lever?

• lift up a box
• hold two boards together
• slice through an object
• turn an axle

A scientist uses what he knows to modify a wedge.  The new invention will help keep roads clear of ice and snow in the winter.  What did the scientist develop?

• a new inquiry
• a new design process
• a new scientific method
• a new technology

Which simple machine helps you to hold things together?

• a screw
• an inclined plane
• a pulley
• a wheel and axle

Which of the following is an example of work?

• solving a math problem
• pushing a rock that does not move
• pushing on a bike pedal
• reading a book

The first working product that uses a design is called a

• method.
• technology.
• redesign.
• prototype.

Which simple machine is used to raise the flag on a flagpole?

• pulley
• lever
• inclined plane
• wedge

What is the first step in the design process?

• Choose one solution.
• Do research.
• Identify the problem.
• Test the prototype.

Which technology protects people from diseases?

• vaccines
• solar panel
• Global Positioning System
• computer chip