I am colorful rain and light make my color shine who am I

(a)  

I can float Im used for parties who am I

(a)  

I give pollen and nectar I have stems to hold me up who am I

(a)  

I am a building im used for studying and playing there are teacher and students inside me who am I

(a)  

I am used for Christmas I am like a tree but with light ornaments and decorations with a star on top who am I

(a)  

I am used for writing and drawing and have a black tip who am I

(a)  

I am used for online things like distant learning who am I

(a)  

I am shiny My color is golden I am rare some of the banks have me who am I

(a)  

I am a shape with 4 sides that are equal who am I

(a)