AI Tutor
Have you ever stood outside on a super windy day and felt tiny specks of dirt brush against your legs?
Even though you cannot see the air, moving wind has enough power to push and lift pieces of the ground.
How does invisible air actually move solid earth?

Wind on the Move

Heavy rocks are too big for the wind to budge, but tiny grains of sand and soil are light enough to move.
When strong wind blows across the ground, the smallest dust floats up into the sky, while sand grains roll and bounce along.
Does all soil blow away, or does water make a difference?

Dry Soil vs. Wet Soil

Wet soil sticks together like sticky dough, so wind cannot easily pull the pieces apart.
When soil gets dry, it crumbles into separate tiny specks that the wind can sweep into the air.
What happens when millions of bouncing sand grains finally stop moving?