The earth changes slowly through processes like water erosion, wind erosion, and ice erosion. Water erosion occurs as fast moving water breaks down rocks, wind erosion carries away sand and soil, and ice breaks down rocks as it forms in cracks and pushes them apart. The earth also changes quickly through earthquakes when the earth shakes, volcanoes which are openings in the earth's crust, floods from heavy rainfall, and landslides where rocks and soil slide down hills.

1. How does earth changes?

2. Earth changes:
Slowly Quickly

3. How does earth change slowly?

4. Fast moving water
break down rocks

5. Strong wind
carry sand and soil away.

6. Ice
breaks down rocks

7. How ice changes the land?
(1) in cold weather water
inside cracks changes into ice.

8. (2)Ice pushes the rocks far apart

9. (3) The water melts and the crack
becomes bigger

10. How does earth change quickly?

11. Earthquake
happens when earth shakes

12. Volcano
an opening in the earth crust

13. Flood
when lots of rain fall quickly

14. Land slide
Happens when rocks and soil slide
from higher to lower ground