tlm, science project, ecological pyramid, trophic levels, science model, tlm for class 6 to 8 

In this video making of science tlm on ecological pyramid is shown, hope you all like it.
#tlm
#sciencetlm
#ecologicalpyramid
#tlmforupperprimaryschool
#scienceproject
#sciencemodel
science project, ecological pyramid, tlm, trophic levels, science model, tlm for class 6 to 8