I am a firework you can safely hold in your hand, casting a sizzle of bright embers until only a bare wire remains. What am I?

I start with an 'e', end with an 'e', and contain letters, but I only have a single letter inside me. What am I?

I am frozen water, and I cover the pond so skaters can glide. What am I?

What has keys that open no locks, space but no room, and allows you to travel anywhere without moving?

I am a twelve-leaf tree that sheds one leaf every thirty days, only to sprout a completely new trunk when the last leaf falls. What am I?

What can you catch, but never ever throw?

I parade through city streets draped in flowers and cheer, I top fizzy root beer with vanilla ice cream dear, and in the summer pool I let lazy swimmers drift without fear. What am I?