Congratulations on completing your musical art interactive piece.

Musical art exhibits are displayed in places like malls, museums, airports, and even on the sidewalks in New York City.

You also learned one of the most important computer science concepts today, the conditional, or if-then block.

Computers are great at doing the same instruction over and over as you've seen when given a forever loop but they can't think on their own.

They need a computer scientist like you to tell them what to do.

Most dictionaries say a robot is an automated machine that can be programed to perform a variety of specific mechanical functions.

Whoo, like the robotic arm up there on the sign robots are often thought of as machines that do jobs that are too dirty, dull, or dangerous for people.

Using the if-then block is one of the core ways to tell the computer how to think.

Computer scientists use it everyday to write code for instructions like if the Roomba vacuum robot bounces into a wall, then turn.

Or if the air hockey robot senses the air hockey puck in front of it, push it forward to knock it away.

In healthcare, dozens of small machines run simple computer programs that that instruct if a patients heart rate decreases or if the oxygen level in the person's blood drops below a safe level, then sound an alarm.

Or even logic for a machine to navigate inside a person during surgery.

If it senses something in front of it, then it turns.

If-then logic and computer science is all around you.

When you start recognizing it, you will realize that computer scientists make impacts all over the world.

No matter what field you're interested in, from music to sports to healthcare, there's a computer scientist innovating and improving it.

Where would you like to use your new computer science skills?

Through your next club meeting you will do a scratch scavenger hunt where you can earn Scratch badges by finding and using new blocks and functionality in Scratch while building a project that does whatever you want.

  • The song “Festival” is © YouTube-- CC-BY-SA 4.0 does not apply.
  • Ideas @Davos | Howard Choset | New Frontiers: Medical Robotics by World Economic Forum ( licensed under CC-BY 3.0 (
  • Interactive Sound and Art installation near Center Camp, Burning Man 2013 by Rick Taylor ( licensed under CC-BY 3.0 (
  • CPEU1 - Interpretación automática by campusparty ( licensed under CC-BY 3.0 (
  • "iRobot Roomba 690 vacuum with Wifi!" by HomeWithKimberly ( -- Licensed by Creative Comons Attribution-Share Alike 3.0 Uprorted (
  • Escher Museum Interactive Floor by vision2watch ( licensed under CC-BY 3.0 (
  • Robot Is Awesome at Air Hockey by Chakrapani S ( licensed under CC-BY 3.0 (