Answer:
I am a portal to another world which you cannot enter. Only you can see me but I can't see you.
My head bobs lazily in the sun. You think I'm cute for my face is yellow my hair is white and my body is green.
I am found on Mercury Venus Earth and Mars but not on Jupiter or Saturn. What am I?
I produce wool and spit a lot
In your fire you hear me scream creaking and whining yet I am dead before you lay me in your hearth.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.