What Makes Them Hard?
What Are Some Examples?
Think about ice cubes in your drink or a piece of chalk you use to write on the board. Both are hard and white. Another example is bread crust, which gets harder when it’s toasted, just like bread turns from soft to something that feels more like a rock.
These things might feel cold, but they’re not magical, they're just special kinds of solids that don’t bend or melt easily, making them perfect for building, writing with, or even turning your drink into something fun.
Examples
- A child sees a diamond and asks why it's hard and white.
- Salt is hard and white, but so is chalk, what makes them similar?
- A student learns that both diamonds and salt are made of crystals.
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See also
- What are atoms?
- How do magnets work and why do they attract or repel?
- What are neutrons?
- What is Directionality?
- What is density?