Pumpkin plants! My kids LOVED to watch their pumpkins grow :) I couldn't find pumpkin seeds in stores, so we did a pumpkin exploration to acquire them instead! The kids got to see and feel the inside of the pumpkin, and we washed and saved the seeds for planting. Planting anything is great for teaching about the life cycle of a plant - the kids really can see the different stages! Checkout my free pumpkin printable (math, science and ELA all-in-one)!