Inquiries in Science® Chemistry Series - Help your students understand hard-to-grasp science concepts. Using a learning cycle of Engage, Explore, Explain, Extend, and Evaluate, each kit features lab activities designed to actively engage students in learning essential science concepts through guided inquiry. Topics addressed by the kits were organized and selected based on data from numerous sources, including the National Research Council's National Science Education Standards, AAAS's Project 2061 Science Benchmarks, NAEP's Science Framework, and state science education standards from across the US.

The Determining Chemical Formulas Kit includes: Lab supplies plus a teacher’s manual with instructions Background information Reproducible student sheets Student questions Extension activities Grading rubric Suggestions for differentiated instruction Kit Refill replenishes kit consumables.

• Determine the percentage composition of a substance
• Use models to differentiate between empirical and molecular formulas
• Calculate empirical and molecular formulas

Grades 9–12. Students determine the chemical composition of common substances. They begin by using molecular models to explore the similarities and differences between empirical and molecular formulas. After determining the empirical formula of a substance, they use this information to establish its molecular formula and percentage composition. Finally, students design experiments to determine the percentage composition and/or molecular and empirical formulas for common substances.

Part of the Inquiries in Science™ series. Materials are sufficient for 30 students working in groups of 3.

/!\ WARNING: CHOKING HAZARD - Small parts. Not for children under 3 yrs.