Sound Second Grade

What's all that noise you hear from the science lab? It's the second graders making meter sticks, rulers and rubber bands vibrate. They also made horse lips sounds. As you can guess, 2nd graders are busy learning "All About Sound". After a brief introduction, the students tested rulers, rubber bands, metal pans, and empty water bottles to see what kind of sounds they made. The children noticed that something has to be vibrating to make a sound. They also discovered that sound can travel through many kinds of materials, some better than others. Using dominoes, the children found out that sound travels the fastest in a solid and the slowest in air. Using a slinky, they modeled how sound waves travel. To test that sound waves carry vibrations, and can make other things vibrate without touching it, the students did an investigation called "What Makes Pepper Dance?". They still have several experiments to go, investigating pitch and volume. Keep tuned to the blog for more exciting "Sound" news from the second grade.