Chirp Builds a Nest - Desperate to fly, Chirp wonders if building a nest will help her? The kids decide to build a house for their stuffed animals and action figures. With cardboard and tape they make an excellent 2 story house with a roof. Will it work in the rain? "Find some old boxes and try building your own house." Stuck Duck - How do you unstick a duck who's stuck in a hollow log? (Say that five times, fast!) What can you do with an old piece of tubing or pipe? The kids are rolling balls through tubes. One ball gets stuck, but the kids know what to do to get the ball unstuck. "Try rolling balls through different kinds of tubes."