1. ELYSEUM CHRISTIAN SCHOOL
VANCE JARRETT SANTOS
GRADE 5 - SIMON
SCIENCE PRESENTATION

2. WIND
By : VANCE JARRETT SANTOS

3. WIND
WIND is the movement of air caused by the uneven heating of
the Earth by the sun.

4. HOW WIND CHANGES
EARTH’S SURFACE

5. Wind can change the Earth’s surface by moving sand and
dust. It blows these grains against other rock surfaces,
causing more bits to scrape off or be blown away.

6. Wind can transport soil and pieces of rocks. The amount
of soil brought by the wind depends on the size of the
pieces and on the wind speed.

7. Light winds can lift only fine dust. Rocks and pebbles are
too heavy to be moved by ordinary winds. However, the
strong winds can move heavy particles.

8. WEATHERING – Wind can cause weathering by blowing grains of sand against
a rock.

9. Wind weathers rocks into natural structures.
Example : Arches National Park has rock in many shapes. Weathering and
erosion from wind and gravity helped carve these pillars from solid rock.

10. EROSION - Wind also has the ability to erode. This is especially true
where there are not many plants to protect the ground.

11. When a gust of wind blows, it picks up sand and other bits of material. It
carries these bits with it. Wind can carry pieces the size of sand only for short
distances at a time. But over time it can move them several kilometers. Tiny
pieces like dust can blow thousands of kilometers away.

12. A powerful , fast-spinning tornado can move rocks, trees, and other materials in its
path.

13. DEPOSITION – Wind deposits new material in new places.

14. SUMMARY :
How can wind change the Earth’s surface?
Wind can strip layers of sediment and soil off the top of a
landscape or carry tiny grains of sand and other debris miles away
from the parent location. In transit, the materials carried by wind
erode the land as they scrape along the surface or break into smaller
particles and are deposited in new locations.
THE END

15. ELYSEUM CHRISTIAN SCHOOL
PRESENTED TO :
T. WILMER REY DY