
Identify states of matter
Free printable Grade 6 science worksheet for "Identify states of matter" — practice matter and particles. No-prep, print or assign online.
Students in middle school identify the defining characteristics of each state of matter — solid, liquid, and gas — at the particle level in this hard-level Physical Science worksheet on matter and particles. Teachers can use it to push students beyond surface-level observation toward a molecular explanation of why matter behaves differently in each state. It belongs in a Matter and Particles unit and prepares students for more advanced topics in chemistry and physics.
Learning objectives
- Identify the states of matter and describe their properties at the particle level
- Explain how particle arrangement and motion differ among solids, liquids, and gases
- Predict how a substance's state will change when energy is added or removed
Answer Key

How to use this worksheet
- Click “Download Worksheet” and sign in with Google or email to get the PDF instantly.
- Print at home or in class for Middle School; it's no-prep, with no extra materials needed.
- Use the included answer key to mark it in seconds.
Frequently asked questions
Is the “Identify states of matter” worksheet free?
Yes. “Identify states of matter” is a free printable Science worksheet. Sign in with Google or email to download the PDF instantly.
What grade or age is this Science worksheet for?
It's designed for Middle School (ages 11–14), covering Matter and particles.
Does it come with an answer key?
Yes — a matching answer key is included so you can grade it in seconds.
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