1. Long-buried mines often resurface when construction projects churn up the soil. 2. One meteorologist predicted a " weed-eater effect " as winds churn up the coast. 3. Misner hoped that the chaos would churn up and smooth out the early universe. 4. But the Meteorological Agency warned the tremors may churn up powerful tsunami tidal waves. 5. Winter rains soak into the sands and churn up soil that had been long buried. 6. West Coast indie punk lesbians churn up a storm on album and Middle East gig. 7. Many were never detonated for fear that they would churn up the ground too much. 8. I was sure that the spectacle of the ancient child skeleton would churn up my insides. 9. The oars churn up the sea, wielded by heroic hands in time to Orpheus's stirring music. 10. Russian armored vehicles churn up the muddy roads. 
Mobile