Flashlight What you will need: 2 or 3 inexpensive flashlights Pencil – 1 A4 sized paper Small flashlight bulb – 1 Batteries – 2 Tape Paper towel tube Small cardboard box Copper wire – 1 Aluminum foil Brass fasteners Scissors Paper clips Plastic wrap How you can who this: 1. Before you make your flashlight, it is a good idea to find out how they work. So disassemble the store-bought flashlights and find out what is in it! 2. Trace the path of the electricity and observe how the power source, the switch and the bulb are connected. 3. Now, draw up your own design for a flashlight, and write down the materials you’ll need for it. 4. And now, build the flashlight that you’ve designed. Ensure that there’s a flow of current between the negative and the positive ends. Tips: You can use the paper towel tube as the holder of your torch. The light bulb when set in a cone of aluminum foil will brighten the light of your torch; aluminum foil is a good reflector. You even personalize it by drawing on it. Can you think of more things you could do to make it better? If you learn how to do this you will discover what an electrical engineer does to make many things that you have at home today!