I WONDER - How Is Quicksand Formed?

Quicksand forms when water seeps into sand, increasing its density and making it harder to move through. The water causes sand particles to pack tightly, reducing their ability to support weight and making the sand more fluid, which further complicates movement.

What happens to sand when water seeps into it?

• It evaporates quickly.

• It turns into solid rock.

• It becomes denser and harder to move through.

• It becomes lighter and easier to move through.

How does water affect the packing of sand particles?

• It has no effect on them.

• It makes them disappear.

• It causes them to spread out more.

• It packs them more tightly together.

Why is it difficult for sand to support weight when water is present?

• Because the sand particles are tightly packed.

• Because the sand becomes too dry.

• Because the sand turns into mud.

• Because the sand particles are too large.

What effect does water have on the fluidity of sand?

• It makes the sand more solid.

• It makes the sand more fluid.

• It has no effect on the sand.

• It makes the sand evaporate.

What is a consequence of sand becoming more fluid?

• It becomes easier to walk on.

• It becomes more supportive of weight.

• It becomes more difficult to move through.

• It becomes less dense.