Living things outside can be easily observed, the size of a tree, colors in a garden, noises from animals. These observations also change with the season or even the time of day. The outdoors is filled with wonderful learning opportunity for little scientists. They may ask questions, including how do seeds grow into plants? Instead of telling them the answer, you can say "let's find out!"
The wonderful thing about inquiry science education in early childhood is that this approach can be woven into any curriculum that your classroom is already adopting. Incorporating elements of inquiry learning can add a rich dimension to the dynamic of your classroom while ensuring that high-quality, developmentally appropriate science education becomes part of the fabric of your students’ view of their world.