watershed
![Photo of person pouring water on soil and sand to demonstrate erosion](https://nisenet.org/sites/default/files/styles/curated_list_large_cropped/public/land_activity.jpg?h=dd99b896&itok=we6abGF7)
Exploring Earth: Land Cover
In this activity, learners model some of the ways natural processes affect Earth’s landscape through erosion and sediment pollution.
Product
![Caregiver and two children using the paper mountains activity](https://nisenet.org/sites/default/files/styles/curated_list_large_cropped/public/2021-06/ExiSci_Space_20180219_1106.jpg?h=2f5fb273&itok=gEMn32ZZ)
Exploring Earth: Paper Mountains
In this activity, learners make unique mountain models from crumpled paper and watching how water moves across them.
Product
![Oil spill video activity two comparison cups of oil, water, and sand](https://nisenet.org/sites/default/files/styles/curated_list_large_cropped/public/images/catalog/Oil%20spill%20screenshot5.png?h=b0cfd8ab&itok=rNkVSAGX)
Oil Spill Clean Up Simulation
In this activity, learners use natural sand and hydrophobic sand to learn about oil spills and cleanup.
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