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Sand

Man holding a handful of sand from the beach.

How Many Grains of Sand Are There in the World?

Sand is one of the most common and abundant materials on Earth. But how many grains of sand are there in the world? And how does that compare to the number of stars in the sky? Read on to find out.

photo of a woman walking on desert

How to Walk on Sand Without Sinking

Walking on sand can be physically demanding, especially if you’re navigating soft terrain or carrying extra weight. Learn how to walk on sand without effort using expert tips and techniques.

How to separate sand and salt

How to Separate Sand and Salt

Sand and salt are two common materials that are often found together. However, there are times when you may need to separate them.

How to separate sand and water

How to Separate Sand and Water

Learn how to separate sand and water using decantation, filtration, centrifugation, and distillation.