
Classify substances and mixtures
Free printable Grade 5 science worksheet for "Classify substances and mixtures" — practice matter and chemical models. No-prep, print or assign online.
Fifth graders work through this Physical Science worksheet to classify substances and mixtures, building their ability to distinguish between pure substances, homogeneous mixtures, and heterogeneous mixtures within the matter and chemical models topic. Teachers can use it as a post-lesson organizer or pre-lab activity that anchors the vocabulary and concepts students need before hands-on exploration. The classification task develops analytical thinking within the Physical Science strand.
Learning objectives
- Classify matter samples as pure substances or mixtures based on their properties
- Distinguish between homogeneous and heterogeneous mixtures
- Apply classification criteria to unfamiliar examples of matter
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 Grade 5; it's no-prep, with no extra materials needed.
- Use the included answer key to mark it in seconds.
Frequently asked questions
Is the “Classify substances and mixtures” worksheet free?
Yes. “Classify substances and mixtures” 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 Grade 5 (ages 10–11), covering Matter and chemical models.
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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