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LED Flat Flashlight

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Materials: 5 mm or 10 mm white diffused LED light (We got ours from Evil mad Scientist , which unfortunately they are no longer selling. Other suppliers  All Electronics ,  Goldmine Electronics , or Amazon) 3V lithium coin battery (we got ours from sciplus.com item #  40919) copper tape (found in the gardening section of hardware stores as an anti snail/ slug product or alternatively in 1/4'' form on Amazon ) electrical vinyl tape jumbo craft stick Tools: Scissors Ruler (optional) Cut copper tape long enough to go down the length of the craft stick and to wrap about 1/2'' to the other side. Place your coin battery on to the short piece of copper tape you wrapped over the end of the stick with the positive side of the battery facing up, negative side down touching the copper tape.  Take a shorter piece of copper tape and fold each end over about .75'' each side, leaving the middle section with adhesive, and adhere it to the craft stick...
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Stomp Rockets

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Paper Stomp Rockets Make a paper rocket and two different types of launchers. The PVC launcher is from Nasa's POP! Rocket Launcher . The second launcher is handheld using a bicycle inner tube and comes from the Exploratorium's Bottle Blast Off Activity Materials for Paper Rocket: • Construction Paper • Printer paper • Tape • Scissors • Folder or index cards • ½” PVC pipe –12 inches in length • Cotton Balls Materials for Handheld Bicycle Tube Launcher: • Bicycle Inner Tube • ½” PVC pipe –12 inches in length • Duct Tape • Scissors • 2 – liter bottle Optional: PVC Cutter Materials for NASA's Pop! Rocket Launcher • 1 – 5’ length of ½” PVC pipe • 2 – ½” PVC tee connectors • 1 – ½” PVC connector • 2 – ½” PVC caps • Duct Tape • 2 – liter bottle Paper Rocket Instructions:  To ensure the paper rocket is not too tight on the launcher, we r oll printer paper around the 12” PVC pipe and glue or tape it down. Then we take our construction paper and roll it ove...
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PVC Water Bottle Rocket Launcher Design Components

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Seal and Release Mechanism PLEASE NOTE: PARENTAL SUPERVISION IS REQUIRED. Ensure the safety of children and others while operating this project. Be sure children are old enough to stay out of the way of the bottle rocket and take any other precautions you feel are necessary to keep everyone safe. The Water Bottle Rockets are always a big hit with kids. We have gone through numerous water bottle rocket launcher designs derived from other designs we found and those we created ourselves. The launcher shown in the above image is the easiest, most cost-effective, and most reliable PVC pipe version thus far. The launcher is based on the PVC launcher detailed at Walking Mountains How to Build a Soda Bottle Launcher , with variations on certain components. Design Components Launch Tube Seal   The most varied component of the PVC launchers is the seal between the launch tube and the mouth of the 2-liter bottle. The Walking Mountains Science Center version listed above does not detail what t...
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Craft Stick Motorized Car

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  Learn about electrical circuits with this simple  motorized car. Materials: • bottle caps or any other items that can be used as wheels • straw • paperclips • Hobby motor • 1 AA battery • Solid core wire (we like telephone wire) • craft stick • tape • a broccoli rubber band, or inner tube cut off • wooden dowel or bamboo skewer Tools: • scissors • wire strippers • hammer • nails • hot glue gun Make a hole in bottle cap by hammering a nail through the middle of the cap.  Push the motor’s axle through the hole.  It should be a tight fit.  If it is not a tight fit hot glue the cap in place. We found that a  3D nail makes the perfect size hole for the axle of the motor we use.      Use scissors to enlarge holes for rear wheels if using a dowel. If using bamboo skewers it is not necessary to enlarge the hole.  Cut dowel to preferred length....
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