I WONDER - What Are Sand Dunes?

The video explains sand dunes, describing them as tall sand formations created by desert winds. It details how dunes form, grow, and resemble waves. The video highlights the massive size of some dunes, such as those in the Issaouane Erg sand sea, which can reach 450 meters, nearly five times the height of the Statue of Liberty.

What are sand dunes primarily made of?

• Gravel

• Clay

• Sand

• Rocks

What natural force is responsible for the formation of sand dunes?

• Volcanic eruptions

• Desert winds

• Earthquakes

• Water currents

Which side of a sand dune does the sand accumulate on?

• The side facing away from the wind

• The bottom of the dune

• The top of the dune

• The side facing the wind

How tall can sand dunes in the Issaouane Erg sand sea get?

• 350 meters

• 150 meters

• 250 meters

• 450 meters

How does the height of the tallest sand dunes in the Sahara compare to the Statue of Liberty?

• Twice as tall

• Three times as tall

• Four times as tall

• Almost five times as tall