Nature study can be a daunting subject, but it doesn't have to be! Simply start with a weekly nature walk around a park, or even around your neighborhood. Charlotte Mason put a lot of weight on the importance of nature study throughout a person's life, and it can be as easy as taking a weekly nature walk as a family and noticing:
In this video I summarize Charlotte Mason's methods and along with some tips and tricks I've learned over the past 6 years of teaching nature study.
https://youtu.be/KV2jm6nJ3eQ