![]() Follow the directions on the template to cut out and fold the whirlybird. Then use a pencil and ruler to draw the whirlybird shape on a piece of paper, based on the dimensions in the template. Shop Amazon for Wooden Ferris Wheel - STEM Projects for Kids Ages 8-12 -16 Engineering Kit, 3D Puzzles Roller Coaster Building Set - DIY Educational Model Building Toys - Teens Gifts for Girls and Boys and find millions of items, delivered faster than ever. If you do not have access to a printer, you can download the file and open it on your computer. This circuit is exactly like the circuits in automatic night-lights that you can buy at the store. Download and print the whirlybird template. The other parts of the circuit (the potentiometer and the transistor) turn the LED on or off depending on how much light hits the photoresistor. If you built and installed the simple lantern circuit in your paper lantern, you saw that the photoresistor is the light-detecting part of the circuit. If you tried covering those holes with translucent materials like wax paper, kite paper, or tissue paper, you saw that some light could pass through these materials, but it was dimmer and more diffuse than when the holes were uncovered. ![]() Cutting holes in the opaque material allowed light to pass through. This is called iteration and is something engineers do when making and improving products.Īs you built and tested your paper lantern, you may have seen that the light was blocked by opaque materials like cardboard and construction paper. You may have had to do some or all of these steps several times before you ended up with a lantern you liked, and that worked well. ![]() While making your paper lantern, you went through the designing, building, and testing steps of the engineering design process.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |