Many places are lifting restrictions. Some are still locked down. Theses ideas are adaptable to other conditions- when weather prevents much outdoors time, apartment living, illness in the family, etc.
First remind yourself of the purpose and methods of nature study.
The purpose is knowing their immediate world and the method is personal observation.
"Nature-study not only educates, but it educates nature-ward; and nature is ever our companion, whether we will or no. Even though we are determined to shut ourselves in an office, nature sends her messengers. The light, the dark, the moon, the cloud, the rain, the wind, the falling leaf, the fly, the bouquet, the bird, the cockroach they are all ours.By L. H. BAILEY, printed in Comstock’s Nature Study Guide