Answer:
When I point up itβs bright. When I point down itβs dark.
I help you carry your books.
I will disappear every time you say my name.
I am seen in the water. If seen in the sky I am in the rainbow a jay's feather and lapis lazuli.
I love to twist and dance. Though wingless, I fly high up into the sky. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?