1. WEATHER ING AND EROSION …Forces changing our Earth

2. OUR WORLD IS CONSTANTLY CHANGING…  Mountains crack and rocks fall down the slopes…  Rivers get bigger and faster…  Sand dunes grow and move across the deserts…  Caves are growing bigger…  Canyons are getting wider…

3. IT’S HAPPENING EVERYDAY, ALL DAY LONG

7. WATER FREEZING IN ROCKS CAUSES WEATHERING

8. ROCKS BUMPING AGAINST EACH OTHER IN RIVERS IS WEATHERING

9. PLANTS GROW BETWEEN ROCKS AND BREAK THEM APART

10. EROSION

11. THE GRAND CANYON WAS FORMED BY THE RUNNING WATERS OF THE COLORADO RIVER

12. THE WIND CAN CARRY SANDS AND ROCKS AWAY AND CARVE BEAUTIFUL FORMATIONS

13. LANDSLIDES AND ROCK SLIDES ARE EROSION…

14. WEATHERING AND EROSION CAN WORK TOGETHER……..

15. NOW, LET’S TAKE A QUIZ

16. A RIVER GETS WIDER AS THE SIDES ARE WASHED AWAY

17. WAVES POUND THE ROCKS AND BREAK THEM

18. weathering

19. DESERT WINDS BLOW THE LIMESTONE AWAY TO MAKE SWIRLS IN THE LAND