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MEL Science
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Printable states of matter and phase changes chart
Labeled states of matter diagram · 1 page
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The same phase-change diagram as our states of matter simulation, drawn in black and white for printing. Solid, liquid and gas each show their particles (a tight pattern, a loose pool, a few fast movers), and six arrows name the phase changes between them. Solid arrows add heat and dashed arrows remove it, with water's melting point (0 °C), boiling point (100 °C) and dry ice's sublimation point (−78.5 °C) noted.
Use it as a science notebook page or a classroom poster, or keep it handy for the states of matter worksheet.
Tips for using it
- Color the heating arrows red and the cooling arrows blue.
- Ask your child for one real-life example of each phase change and write it beside the arrow.
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Questions
What grade learns about states of matter?
Solids, liquids and gases often appear in 2nd grade, with phase changes and particle models returning in 5th grade and middle school physical science. Check your state's science standards for the exact year.
Why are there six arrows?
Each pair of states has a change in each direction, with heat added one way and removed the other, so three pairs make six phase changes.