The students have been excavating fossils.

If you are interested – these kits can be bought on Amazon.

tps://www.amazon.com/s/ref=nb_sb_ss_c_1_10?url=search-alias%3Daps&field-keywords=fossil+excavation+kit&sprefix=fossil+exc%2Caps%2C131&crid=1TO00JVVCMBYV