Curated OER
Rocks and Minerals
In this earth science worksheet, students use the clues given at the bottom of the sheet to solve the crossword puzzle on mineral and rocks. They identify the various types of rocks formed and specific examples of these rocks.
Curated OER
CREATE A CAVE
Learners investigate the concept of caves by conducting an experiment. The lesson plan contains background information for the teacher. They collect data while making observations and write a review of the concept once the experiment is...
US Geological Survey
Usgs: The Effects of Acid Rain
Geology and chemistry of acid rain effects. Lots of building and monument pictures showing acid rain damage. Be sure to follow the "next" link at bottom of each page.
Other
Crop Life: The Importance of Agricultural Lime
Read here about why farmers use aglime on their crops. Proper use of aglime is one of the most important management inputs in successful crop production.
