Science grades 3-5, Science Gold Rush, the periodic table, elements, atoms, chemistry 4th grade, 5th-grade science, elementary Science, science labs, science activities, the periodic table, STEM challenge. Thank you for purchasing this resource; The Science Behind The Gold Rush. This resource includes science information, activities, labs, performance assessments, a quiz, and teacher notes. This resource aligns with the Next Generation Science Standards for grades 3-5, 5-PS1-3 Matter and Its Int