States of Matter — Reading Passage

About this worksheet

This reading passage printable supports K-2 learners working on States of Matter. A 2-3 paragraph nonfiction reading followed by 10 comprehension questions — main idea, vocabulary in context, cause/effect, and short-response prompts. Use it as guided practice during your unit, as a take-home review, or as a quick formative check before moving on to the next concept. The activity is aligned to NGSS performance expectation 2-PS1-1 and pairs cleanly with hands-on demonstrations, picture books, and short videos already in your classroom rotation. An answer key with teacher notes appears at the bottom of this page so you can grade in seconds and identify common misconceptions before they harden.

Learning objectives

• Define solid, liquid, and gas.
• Sort objects into the three states.
• Predict what happens when matter is heated or cooled.
• Explain that matter takes up space and has mass.

Vocabulary

solid

Matter that holds its own shape.

liquid

Matter that takes the shape of its container.

gas

Matter that fills any space.

melt

To change from solid to liquid.

freeze

To change from liquid to solid.

Practice exercises (10 questions)

Print this section for students. Reveal the answer key below for grading.

1. In your own words, solids hold their shape; liquids take the shape of their container; gases fill any space.
2. State the learning objective for States of Matter in your own words.
3. Give one real-world example that shows matter takes up space and has mass.
4. Why is it important for a scientist to know that solids hold their shape; liquids take the shape of their container; gases fill any space?
5. How would you explain to a younger student that heating can melt or boil; cooling can freeze or condense?
6. Draw a quick sketch that shows matter takes up space and has mass. Label two parts.
7. Compare solids hold their shape; liquids take the shape of their container; gases fill any space with one other idea you have learned in this unit.
8. Which everyday observation would best support the idea that heating can melt or boil; cooling can freeze or condense?
9. Predict what would happen if matter takes up space and has mass were not true.
10. Write one new question you still have about solids hold their shape; liquids take the shape of their container; gases fill any space.

Teacher notes

Watch for these common misconceptions: Solids hold their shape; liquids take the shape of their container; gases fill any space. Many students will guess based on appearance instead of evidence — encourage them to point to a specific clue from the passage or diagram. For early finishers, ask them to draw their own example or write a one-sentence summary on the back of the page.

How to use in class

Print one copy per student, or project the page on your board for a whole-class discussion. The reading passage format works well as a 10-15 minute activity within a 45-minute science block. Younger students may need the directions read aloud the first time you use this format; once they have done one or two, they can usually start independently. For early finishers, ask them to flip the page over and either draw an example from real life or write one new question they still wonder about. Both options stretch their thinking without requiring extra prep from you.

If you are teaching this unit in a multi-grade classroom or a homeschool setting with siblings of different ages, scaffold by reading the first two questions aloud with the whole group, then release younger students to work in pairs while older students complete the printable independently. The reveal-on-click answer key keeps the page free of distractions while students are working.

Related States of Matter printables