Solid or Liquid?

Start with something students can look at or think about: a photo, a short video, a jar on the windowsill, or a question like "what do you already know about solids, liquids and gases?" Then let them work through the worksheet on their own or with a partner, keeping a word bank or anchor chart in view so the vocabulary stays available. When you review, ask students how they knew, and let them point to the part of the diagram or reading that told them. These solids, liquids and gases worksheets work well as a lead in before an investigation, as a way to capture what students noticed afterward, or as review before an assessment.

These solids, liquids and gases worksheets for 1st grade give students a clear, visual way to work through one of the big ideas in material properties. Students label diagrams, sort and classify examples, read short explanations, and answer questions that ask them to say why, not just what. Each page keeps the science vocabulary front and center so students leave with the words they need to talk about solids, liquids and gases accurately. Working through solids, liquids and gases on paper gives 1st grade students something concrete to hold onto before, during, or after the hands on part of a lesson.

This worksheet is designed for 1st Grade students (Ages 6-7), aligned to NGSS standard 2-PS1-1. That standard sits in the 2nd grade band, so treat this worksheet as an early introduction rather than standards practice for this grade. Material properties are a Grade 2 standard (2-PS1-1); this Grade 1 worksheet introduces it early. It can also be used as review for early students at the next grade level or as an introduction for advanced students.

Yes. This worksheet works for homeschool, classroom, and tutoring settings. Print individual pages for targeted practice, or print the full set as a packet. Works great as a morning warm-up, independent center activity, or fast-finisher task.

First graders learn that matter exists in three states and that each state behaves differently: solids have a fixed shape, liquids flow and take the shape of their container, and gases spread out to fill their container. They identify familiar examples of each state and explore simple examples of state changes, like ice melting to water.

The three states of matter are typically introduced in Grade 1 during a physical science or matter unit. Teachers often use water in its three forms, ice, liquid water, and steam (carefully), as a central example.

Cook or bake together and point out examples of all three states: the solid butter, the liquid oil, the steam rising from a pot. Ask your child to classify what they see and explain their reasoning. Watching ice melt in a glass at the table is also a simple, engaging demonstration of a state change.