ACTIONS: simple actions are best, pointing in the directions given in the song – behind you, in front, to the left, right – all about you. Rainbows can be simply arching the arms over the head, animal noises approapriate to the animals named, hopping for the kangaroo, and simply pointing to the various objects named.
ART: using colours and experimenting with mixing – ie red and blue to create a variety of purples; yellow and blue to create a variety of greens; et al and using these to paint scenes from the song
Science: Prisms and refracting light to create a rainbow effect