How are convection currents formed in this
experiment? Name 2 other place where convection
currents form naturally,

Explanation:

There are two types of convection: natural convection and forced convection. Natural convection is produced by density differences in a fluid due to temperature differences (e.g., as in “hot air rises”). Global atmospheric circulation and local weather phenomena (including wind) are due to convective heat transfer.

hope it helps.

tension is the type of stress that results when two tectonic plates diverge .

explanation:

i think it's severe storms but i might be wrong