Researching the interaction of charged bodies.

Topics include temperature, internal energy, heat capacity, and thermal balance.

The 8th-grade material is often divided into theoretical control, practical training, and laboratory works:

Determining substance density, studying elastic properties of bodies, and measuring the coefficient of sliding friction.

Studies on electric current, circuits, and resistance.

Investigating conditions for bodies floating and studying the equilibrium conditions of a lever. Grade 8: Thermal and Electrical Phenomena

Measuring the period of rotation and investigating string pendulum oscillations.

Volume of solids and liquids, size of small bodies, and mass of bodies using weighing methods.