Does 1 liter pinewood equal to 1kg pinewood?

No, 1 liter of pinewood does not equal 1 kg of pinewood. The relationship between volume and mass depends on the density of the material. Pinewood has a density that typically ranges from about 300 to 800 kg/m³, meaning that 1 liter (which is equivalent to 0.001 m³) of pinewood would weigh significantly less than 1 kg, depending on its specific density.