Save energy, I think a smart 10-year-old would be able to give decent answers to all of those. You pretty much can’t use the words without knowing what they mean.
Edit I do think energy is a good one, though. Or maybe “why is energy conserved?”
Save energy, I think a smart 10-year-old would be able to give decent answers to all of those. You pretty much can’t use the words without knowing what they mean.
Edit I do think energy is a good one, though. Or maybe “why is energy conserved?”