Which method of popcorn popping transfers heat into the kernels without any direct contact (nothing hot touched the kernels)? Explain.

It is cause by radiation that's the answer

Explanation: the heat project sun rays towards the popcorn which causes it to pop

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.