Explain how keplers law verifies newtons law of gravitation when it applied to orbiting planets

You have it backwards.  Kepler came first.  He analyzed a lifetime of
measurements and observations that described the motions of the planets
as we see them move in the sky.  From these observations, he came up
with a model of how the solar system could be organized, and he boiled
a planet's motion down to three simple-looking laws.

A century later, Newton proposed his law of universal gravitation, and showed
that IF gravity works according to his law, THEN planets MUST move according
to Kepler's laws.

The rocks expand when there hot/warm  and contract when they are cold.

No bc a lot of things r still theories n unproven