🧊 States of Matter
Drag the temperature slider to heat or cool matter. Watch the particles change how they move — from frozen solid to flying gas!
Particles and Energy
All matter is made of tiny particles (atoms or molecules). The state of matter depends on how fast these particles move — which depends on temperature (heat energy).
In a solid, particles vibrate in place. In a liquid, they slide past each other. In a gas, they zoom around freely, spreading out to fill any container.
About This Science Tool
This free interactive science tool is designed for elementary and middle school students. It uses visual animations, hands-on activities, and quizzes to help kids understand key science concepts. All content is aligned with Next Generation Science Standards (NGSS) and is completely free with no login or account required.
Interactive learning tools like this one help students engage with science in ways that textbooks alone cannot. By clicking, dragging, and experimenting, kids build deeper understanding and retain information better. Research shows that active learning leads to stronger academic outcomes compared to passive reading.
How to Use
Explore the interactive elements above, then test your knowledge with the built-in quiz. You can retry as many times as you like. Teachers can use this tool on interactive whiteboards or assign it for independent practice. Parents can use it for homeschooling or after-school enrichment.
Last reviewed: April 2026
Standards: Next Generation Science Standards (NGSS) · Sources: NASA