What are growing in Room 16?

Monarch butterflies were flying around the sunflowers at Mrs Bloomfield's so she got a swanplant and they laid eggs.
After 4 days the eggs hatched and tiny caterpillars came out.
We now have 10 caterpillars and they are not so little.

 We named them today. Our caterpillars are called Spider, Elsa, Kai, Spiderman, Batman, Mel, Tiger, Stripes, Robin and Star.

I wonder what will happen to them next?