GEMS Great Explorations in Math and Science Central Michigan University ● EHS 464 ● (989)774-1710 ● Web: gems.cmich.edu ● Email: gems@cmich.edu GEMS FALL 2014 WORKSHOPS Build It! Festival Friday, September 19, 2014 ● (Grades K-6) This GEMS festival session includes a wide assortment of classroom learning-station activities that emphasize construction, geometric challenges, and spatial visualization. Activities involve students in free exploration of materials and lay the foundation for mathematical challenges. Acid Rain Friday, October 3, 2014 ● (Grades 6-8) In this stimulating unit, students learn about acids, bases, and the pH scale; make “fake lakes” and determine how their pH changes after an acid rainstorm; present a play on the effects of acid rain on aquatic life; determine the effects of various dilutions of acid on seed germination; and hold a town meeting to discuss possible solutions to the problem of acid rain. Science & Literacy Environmental Detectives Chemical Reactions EHS 117 1:00-4:00 pm Cost: $5.00 Guide Cost (optional): $18.40 Friday, October 10, 2014 ● (Grades P-2) In this stimulating unit, students learn about acids, bases, and the pH scale; make “fake lakes” and determine how their pH changes after an acid rainstorm; present a play on the effects of acid rain on aquatic life; determine the effects of various dilutions of acid on seed germination; and hold a town meeting to discuss possible solutions to the problem of acid rain. Friday, October 24, 2014 ● (Grades K-3) Frog Math EHS 129 12:30-4:00 pm Cost: $5.00 Guide Cost (optional): $22.40 In an artful interweaving of mathematics and literature, this lively series jumps off from one of the well-known Frog and Toad are Friends stories, "The Lost Button." The story leads to free exploration of buttons, then sorting and classifying and a game of Guess the Sort. Students design their own buttons and use a graphing grid to organize data. Friday, November 21, 2014 ● (Grades 5-8) In this case, the "crime" is a mysterious environmental calamity— a fish die-off that began five years ago. Students investigate the many potential causes of the fish dying, including chlorine pollution, acid rain, erosion and sediment pollution, predatorprey relationships, phosphate pollution and algal blooms. Friday, December 5, 2014 ● (Grades 3-6) An ordinary ziplock bag becomes a safe and spectacular laboratory as students mix chemicals that bubble, change color, get hot, and produce gas, heat, and odor. Chemical Reactions explores chemical change, demonstrates endothermic and exothermic reactions, and develops skills in observation, experimentation, and inference. EHS 129 1:00-4:00 pm Cost: $5.00 EHS 129 1:00-4:00 pm Cost: $5.00 Guide Cost (optional): $17.30 EHS 129 1:00-4:00 pm Cost: $5.00 Guide Cost (optional): $26.90 EHS 129 1:00-4:00 pm Cost: $5.00 Guide Cost (optional): $13.60