I heard that by registering for some sort of robotics fair, you get a free lego mindstorm robot? I know there's a fee of about $200 or more for the fair, but apparently you...

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I don't know. But what I do know is that they use Mindstorm Lego robots in competitions such as First Lego League. The last FLL tournament was held on Nov 28th.

Is there any creative, yet simple experiments I can do for a school assignment using light sensors

We are currently working with simple lego robotics, and need to conduct an experiment using light sensors

any ideas would

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Put a light sensor at the front of the robot. Make it detect lines or balls in a circle, and turn around once it detects it. There is a wide variety of things you can make it do, be creative.

Edit: You can also make it move on a curved

i have to do a project for science class and need to build a model robot out of simple machines. i dont know how to make one one and i was thinking to make it out of legos. science teachers or smart scientific people please help!

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Do you have the lego's Technics sets? that should be the first place to start, they even have motors