While Kindergarten and first graders learned about Groundhog Day and shadows, the second graders practiced using dictionary skills. Second grade students were asked to use a glossary or a dictionary to define pitch, echo, sound, vibration, and other science words. I pulled all the nonfiction books about sound that we have in the library. I provided two different dictionaries for the students. The students were told to choose the best definition for each word. You can see how serious they were about their task. The students will experiment with pitch by playing a simple song on some home-made Boom Whackers/Palm Pipes.