Your team is going to pitch your idea to a panel of adult judges. In order to make an impression, you will need to be well prepared and well rehearsed. Think about the pitches we viewed on shark tank - strong opening, outlined the specific problem, showcased their solution, and were then thoroughly prepared for any questions about their product.
Good pitches know these things:
Introduction of who you are
How the product works
Valuation (how much money vs percent of company)
Who it attracts
What its made of
How much are you selling them for and how are you selling them