wunder beta🧊 Solid, Liquid, Gas
Everything around you is a solid, a liquid, or a gas. Let's find out why!
What you’ll learn
- Identify the three states of matter and how their particles behave.Matter is anything that takes up space and is made of tiny particles. In solids, particles are packed tight and hold their shape. In liquids, particles slide and flow. In gases, particles spread out to fill any space.
- Explain how matter changes between states with heating and cooling.Adding heat melts solids to liquids and evaporates liquids to gas. Removing heat freezes liquids to solids and condenses gas back to liquid. Water can change between ice, liquid, and vapor again and again.
Questions this course answers
What are the three main states of matter?
The three main states of matter are solid, liquid, and gas, based on how their particles move.
Why does a liquid take the shape of its container?
In a liquid, particles are close but can slide around, so the liquid flows and fills the shape of its container.
How do the particles in a gas behave?
Gas particles are far apart and move freely, so a gas spreads out to fill any space.
What happens when you add heat to a solid like ice?
Adding heat makes a solid's particles move faster until it melts into a liquid.
At what temperature does water freeze into ice?
Water freezes at zero degrees Celsius, which is thirty-two degrees Fahrenheit.
What is it called when a liquid turns into a gas?
Evaporation is when a liquid warms up and its particles escape into the air as a gas.
Grounded in trusted sources
- Britannica Kids, "Matter" https://kids.britannica.com/kids/article/matter/353444
- Science World, "States of Matter" https://www.scienceworld.ca/resource/states-matter/
- Royal Society of Chemistry (RSC Education), "States of Matter" https://edu.rsc.org/states-of-matter/everything-you-need-to-teach-states-of-matter/4021964.article
- NASA Science for Kids, "What Is the Water Cycle?" https://science.nasa.gov/kids/earth/what-is-the-water-cycle/
Every Wunder lesson is built from real, reputable sources — never invented.
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