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Solid Definition

A solid is a type of matter that keeps its shape. For example, a pencil.

View Lesson on Solids, Liquids and Gases
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Solids, Liquids and Gases

Fun Facts

  • A bowling ball keeps its shape.
  • A carrot is considered a solid because it keeps its shape.
  • Ice is water in solid form.

Why Do We Need To Know About Solid

Learning about solids helps us understand why we use certain materials for different things. For example, knowing that things like desks, pencils, computers, and toy trucks are solids is important for jobs in making and designing things. This is because the solid nature of these items affects how well they work and last in real life.

This knowledge is also helpful in jobs like materials science, engineering, and architecture. Understanding that stuff can be solid, liquid, or gas, and that a solid keeps its shape, helps people choose the right materials for what they want to build or make. This ensures things are safe and work well  in our everyday activities and jobs.  It also helps with new ideas.

Frequently Asked Questions

What state of matter is slime? How do you know?
Slime doesn’t keep its shape, so it’s a liquid.
What is different about a liquid and a solid?
A solid keeps its shape while a liquid takes the shape of its container.
Why isn’t a dream made of matter?
It doesn’t take up space or have weight.
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