Understanding geologic time

Each activity is preceded by a page referencing the 2010 Ohio Revised Science Standards and Model Curriculum with information on appropriate grades and the applicable content standard(s), topic(s), and content statement(s)/subtopic(s).; Harvested from the web on 1/6/17Guide to grade level indicators -- no. 1. Crystal garden -- no. 2. Egg tectonics -- no. 3. Everyone loves fossils -- no. 4. Ohio geology word search -- no. 5. Ohio geology crossword puzzle -- no. 6. Rocks and minerals are everywhere -- no. 7. Modeling Ohio's geology -- no. 8. Understanding geologic time -- no. 9. How to determine true north -- no. 10. Two scale models of the Earth-moon system -- no. 11. Is it a rock or a mineral? -- no. 12. Do rocks last forever? -- no. 13. Playing Robinson's wall game -- no. 14. Just how big is the Sun? -- no. 15. Locating the position of the setting sun -- no. 16. Rock sculpture -- no. 17. Shake, rattle, and liquefy -- no. 18. Rocks around the park.Features simple experiments and other educational activities that meet State of Ohio earth science education standards for various grade levels