Help children mix 1 cup salt, 2 cups flour & 1 cup room temperature water. When combined knead like dough. If it is a little crumbly add 1 TSP at a time. If it is a little sticky add more flour 1TSP at a time. Use Leaves, toys, and other found materials to press into dough. Then just set to dry for a few days.

Have kids pick egg shaped rocks from outside in different sizes. Help them choose different sizes for different types of dinosaurs. Have kids paint rocks to look like dinosaur eggs. Next collect leaves, twigs, and grass to create nests.