How To Curl Metals With Heat

Do you like gift wrapping? If you do, you have probably curled a ribbon with scissors before. Have you ever wondered why the ribbon curls when you run a scissor blade down one side of it? The answer is that when you apply pressure on the ribbon with the blade, the outer layer of the ribbon stretches and expands. This makes the outside layer of the ribbon longer than the inside layer that is pressed against the blade. As a result, the ribbon starts to curl to make up for the different lengths of… Read more

Follow along with a Science Buddies parent who is using family STEM activities to keep her kids learning at home during the COVID-19 school shutdown. New posts every Monday, Wednesday, and Friday. Today's adventure... exploring how heat expands aluminum foil. Example of aluminum foil and paper strip being held over a flame and curling Sensory Play as a Young Version of Materials Science When my kids were little, they loved the sensory table at their… Read more

Join Science Buddies this summer for virtual summer camp! Each week, we'll have a fun STEM theme for kids of all ages, suggestions for simple hands-on activities, book picks, and more. With our Summer of STEM, we'll keep you and your kids inspired all summer with creative and innovative science and engineering activities — for free. This week: up, up, and away with superhero science! Superhero STEM Superhero stories appeal to people of all ages.… Read more

Use these free STEM lessons and activities to help students get hands-on building, testing, and exploring the science of energy and the different types of potential and kinetic energy. From the classic snake-in-a-can prank to stretching and shooting rubber bands across the room, bouncing a basketball, or rolling a marble down a ramp, kids know energy in motion when they see it. The world is full of energy, and energy is constantly being used,… Read more