Why Are Desert Rocks So Often Red, Orange, or Pink?

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why are desert rocks so often red, orange, or pink?

The Big Idea

Many desert rocks contain iron! When iron meets air and a little moisture, it rusts, forming red and orange minerals. That rust coats the sand grains and paints the rocks.

Iron in Rock

Step one: iron is inside. Many desert rocks and sand grains contain tiny bits of iron. When rock first forms, the iron can be hidden and pale.

Air Makes Rust

Step two: air makes rust. When iron is exposed to air and a little moisture, it rusts. Rust makes red and orange minerals that coat the sand grains.

Colorful Stripes

Step three: stripes of color. Layers with more iron look redder, and layers with less look pale or white. That is why canyons and cliffs show beautiful bands of colors.

A Closer Look

Let's take a closer look! The rocks contain iron. A little moisture and air help it rust. The rust coats the grains in orange and red. Different layers make different stripes. Each stripe is a clue to the past.

Quick Facts

Quick facts! Rust is the same thing that colors an old bike chain orange. A little rust can color a whole sandstone cliff. More iron makes rocks look redder. Look from a safe distance, and never climb on crumbly cliffs.

Think Like a Scientist

Now, think like a scientist! With a grown-up, put a steel wool pad on a plate. It can poke fingers, so let your grown-up handle it. Spray it with water, and check it each day. Watch orange rust form.

Outro

Rust turns desert rocks red, orange, and pink. Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!