FOSS Next Generation Chemical Interactions

Grades 6 – 8

In the Chemical Interactions Course, students conduct experiments to observe macroscopic matter transformations and apply kinetic particle theory to explain those transformations at the microscopic level. They also observe energy transfers associated with reactions and infer energy transfers associated with phase change. A diverse mix of empirical experiences and theoretical models helps students construct a solid basic understanding of the composition of their world and the interactions that maintain and transform it.

Investigation 1: Substances

Introduced to substances as unique forms of matter.

Investigation 2: Elements

Learn that elements are the fundamental substances from which all matter is made.

Investigation 3: Particles

Introduce the particle theory of matter and explain how gas can be compressed.

Investigation 4: Kinetic Energy

Observe expansion and contraction of solids, liquids, and gas, and explain those observations in terms of kinetic energy.

Investigation 5: Energy Transfer

Observe expansion and contraction of solids, liquids, and gas, and explain those observations in terms of kinetic energy.

Investigation 6: Heat of Fusion

Determine the amount of heat needed to change solid water (ice) into liquid water.

Investigation 7: Phase Change

Discover what phases of matter are and how phase can be changed by altering the kinetic energy of particles.

Investigation 8: Solutions

Observe dissolving and explain the change in the appearance of substances at the particle level.

Investigation 9: Reaction

Observe that starting substances (reactants) change into new substances (products) during reactions.

Investigation 10: More Reactions

Observe additional reactions and learn about limiting factors in reactions.

Investigate for yourself.