the goal:Identify the direction of gravitational influenceMaterials and tools:Protractor - Metric ru.....

the goal:To demonstrate the total reflection of lightMaterials and tools:Thickened glass slide - lig.....

the goal:to study the electric currentMaterials and tools:Battery - light bulb - 4 connecting wires.....

the goal:To study the phenomenon of light interference.Materials and tools:Monochromatic light sourc.....

the goal:Determining the density of liquids.Materials and tools: Scale- Graduated cylinder- Wat.....

the goal:Assigning the volume of a solid body based on the volume of a liquid.Materials and tools:Wa.....

  Introduction:Step outside on a clear night and gaze at the sky—it's like looking at an e.....

 Introduction:Have you ever wondered how objects fall from the sky with a certain speed or how.....