This activity is an introduction to building with the NXT or RCX. Have the kids build a vehicle without motors that will roll down a ramp. The objective is to have the car roll as far s possible. Make sure to introduce concepts such as gravity, friction, and sturdy building with the legos.

Filter dirty water and then measure the turbidity of the water. We gave the students the decision to choose two of three of the following materials to put inside a cup with a hole in the bottom: cotton balls, gravel, and coffee filters. They used two of these materials and built a filter around the ...

For this activity you will need an NXT brick, a wire, an NXT proximity sensor, and computers running MINDSTORMS

1. Have student design an alarm box that will detect when a person approaches the box. If students want to use more than one proximity sensor or a different sensor as we...

This is a great introductory activity to mechanical engineering. Simple machine kits were used to create sturdy carts, which would transport a pumpkin (orange marble) and its passenger (lego figurine) down a ramp.

In this activity, use an NXT and a light sensor to collect data about the light conditions of the room. Can you find light sensor readings in the range of 0-30? 60-90? 90-100? Draw conclusions and make generalizations about light intensity in the room.
See "Scavenger Hunt" PDF for Detailed Di...

In this activity, use an NXT car equipped with a light sensor to determine the hidden Morse Code message (under a table or in another room). The message will be determined using light sensor collected data on a pass over of the message.
See "Morse Code" PDF for detailed Instructions

In this activity, use an NXT car equipped with a light sensor to determine the hidden letter message (under a table or in another room). The letter will be determined using light sensor collected data on 3 passes over of the letter
See "Find The Hidden Letter" PDF for Detailed Instructions

In this activity, design and construct an RCX sturdy car and program it to be controlled by touch sensors that can push “dirt”
See "Bulldozer-RCX" PDF for detailed instructions.

Determine the best structure for a sturdy car. Motors do not have to be attached, but the car must roll with wheels and skid plates. To test the car design drop the car from a height of 4in to check if it survives.

In this activity, use an NXT car equipped with an ultrasonic sensor to navigate without bumping into obstacles such as walls or people.