What is hard water?

What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. What is hard water?

The Big Idea

Some water is called hard! But water is wet, not hard. What does it mean?

Dissolved Minerals

Step one: Dissolved Minerals. Hard water has lots of dissolved minerals, mostly calcium and magnesium. These come from the rocks that water flows through, slowly dissolving a little bit at a time.

Signs

Step two: Signs. Hard water is safe to drink, but it makes soap harder to lather. It leaves white, crusty limescale on faucets and inside kettles.

Soft Water

Step three: Soft Water. In places with soft water, soap suds up easily. Areas with limestone often have harder water than areas with granite.

A Closer Look

Let's take a closer look! Dissolved. Less lather. White crust. Crusty inside.

Quick Facts

Quick facts! Soap scum and chalky spots are signs of hard water. Limestone makes it harder. Safe to drink. Soft water suds up.

Think Like a Scientist

Now, think like a scientist! With a grown-up, look at a faucet or shower head. Search for white crust. Check inside a kettle too. Draw what you find. Ask what could be done.

Outro

Hard water has lots of dissolved calcium and magnesium from the rocks it flows through. It's safe to drink, but it makes soap harder to lather and leaves white limescale on faucets and kettles, while soft water suds up easily. Science is amazing! Keep wondering and keep exploring! Share what you learned with someone at home, and see what they think! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!