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Lever: A rigid bar attached to a pivot used to transmit force.

Tension: A pulling, stretching force.

Compression: A pushing, squeezing force.

Friction: a force that resists motion.

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;EXTRA: Need help? No problem, just follow the link to complete steps  7-12

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;EXTRA: Need help? No problem, just follow the link to complete steps  7-12

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http://pbskids.org/designsquad/build/robo-arm/

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-This should be a quick sketch
-Keep in mind you can only use the materials in the bag, along with the help of tape.

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How many parts will your robotic arm have?

Think about how a robotic arm can pick up an object. How does it grab the object?

Think about how your arm bends and how you might make your robotic arm bend.

What materials can be used to make the “muscles”?

What materials can be used to make the “bones”?

How will you make the arm bend?

TIP: Inventors’ and engineers’ first ideas rarely solve a problem. When they solve a problem, they try different ideas, learn from mistakes, and try again. If things don’t work out, it’s an opportunity—not a mistake! This is all part of the design process.

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Step 1: Watch the Video and Review the Engineer Process.

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Step 1: Watch the Video and Review the Engineer Process.

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https://www.youtube.com/watch?v=7IAYECTtKi8