Solids, Liquids & GasesGrade 2 Science for Kids

Everything is matter: solid, liquid or gas. Find out how each one behaves.

Solids, Liquids & Gases helps second graders sort the three states of matter, pour water into different containers and watch a balloon puff up when the air inside gets warm. Interactive matter science with a read-aloud voice.

  • Grade 2 · Ages 7–8
  • 3 lessons
  • 3 experiments
  • 12 practice questions
  • About 25 min
Start Learning Free Open the Course
  • What Is Matter?
  • Matter Sort
  • Liquids Take Shape
  • Pour Test
  • Gases Everywhere
  • Balloon Puff

Science lab course · Grade 2

Solids, Liquids & Gases · Learning goals

What Your Child Will Learn

Sort solids, liquids and gases, pour water into different containers, and watch a balloon puff up when the air inside gets warm.

  • All matter is a solid, a liquid or a gas. Each kind behaves in its own way.
  • A liquid takes the shape of its container, but the amount stays the same.
  • Air is a gas. When it gets warm, it spreads out and takes up more space.

Why it matters

Why This Matters for Kids

  • What things are made of

    States of matter is one of the core ideas of grade 2 science and the base of chemistry.

  • Observing properties

    Kids learn that solids keep their shape while liquids take the shape of their container.

  • Invisible air

    Seeing a balloon grow shows kids that gases are real even when we can't see them.

Inside Solids, Liquids & Gases

How the Course Works

Each level has a short read-aloud lesson, an interactive experiment and a mini quiz.

  1. Step 1 · Lesson

    What Is Matter?

    Everything around you is made of matter: your toys, your juice, even the air!

  2. Step 2 · Experiment

    Matter Sort

    Matter comes in three kinds. Let's sort these things into solids, liquids and gases.

  3. Step 3 · Lesson

    Liquids Take Shape

    A liquid has no shape of its own. It takes the shape of whatever holds it.

  4. Step 4 · Experiment

    Pour Test

    Let's pour the same amount of water into three different containers and measure how high it goes.

  5. Step 5 · Lesson

    Gases Everywhere

    Air is a gas. You can't see it, but you can feel it when the wind blows.

  6. Step 6 · Experiment

    Balloon Puff

    Let's put a balloon on top of three bottles and set them in warm, room and cold water. Which balloon puffs up first?

Lesson preview

A Peek Inside the Lesson

This is the real lesson text your child hears, read aloud by a friendly voice.

What Is Matter?

Everything around you is made of matter: your toys, your juice, even the air!

A solid keeps its own shape, like a rock or a block.

A liquid flows and takes the shape of its container, like water or milk.

A gas spreads out to fill any space, like the air in a balloon.

Liquids Take Shape

A liquid has no shape of its own. It takes the shape of whatever holds it.

If you pour a cup of water into a bowl, it is still one cup of water!

In a thin glass, water stands tall. In a wide bowl, it spreads out low.

Gases Everywhere

Air is a gas. You can't see it, but you can feel it when the wind blows.

Gases spread out to fill any space they are in.

When air gets warm, it spreads out and takes up more space.

For parents

Try It at Home

Learning sticks best when kids use it in real life. Here are simple ideas from this course.

Parent Tip

Find a solid, a liquid and a gas in your kitchen. Pour water into different cups and talk about how its shape changes.

Matter Sort

  1. Find 3 solids, 3 liquids and 1 gas in your kitchen.
  2. Squeeze, pour or blow on each one.
  3. How does each one move?

All matter is a solid, a liquid or a gas. Each kind behaves in its own way.

Pour Test

  1. Fill a cup with water.
  2. Pour it into a tall glass, then a bowl, then a plate.
  3. Is it still the same amount of water?

A liquid takes the shape of its container, but the amount stays the same.

Balloon Puff

  1. Stretch a balloon over an empty plastic bottle.
  2. Stand the bottle in a bowl of warm water (a grown-up pours it).
  3. Watch the balloon stand up!

Air is a gas. When it gets warm, it spreads out and takes up more space.

Practice

Grade 2 Science Practice Questions

Real questions from Solids, Liquids & Gases. Try them with your child, then tap to see the answer.

  1. Question 1

    Which one is a solid?

    • A.Milk
    • B.Steam
    • C.A rock
    Show answer

    A rock

  2. Question 2

    Does a liquid have its own shape?

    • A.No, it takes the container's shape
    • B.Yes, always round
    • C.Yes, always square
    Show answer

    No, it takes the container's shape

  3. Question 3

    Is air a solid, liquid or gas?

    • A.A solid
    • B.A gas
    • C.A liquid
    Show answer

    A gas

The full course has 12 questions with instant feedback, stars and rewards. Create a free account to play them all.

Solids, Liquids & Gases · Questions from parents

Frequently Asked Questions

What age is this course for?

Solids, Liquids & Gases is a grade 2 science course for kids ages 7–8. That is Year 3 science in the UK and Year 2 in Australia. It also works well for review in the next grade, or as a challenge for a confident younger learner.

What will my child learn?

Sort solids, liquids and gases, pour water into different containers, and watch a balloon puff up when the air inside gets warm. Along the way they practice: All matter is a solid, a liquid or a gas. Each kind behaves in its own way; A liquid takes the shape of its container, but the amount stays the same; Air is a gas. When it gets warm, it spreads out and takes up more space.

How long does the course take?

About 25 minutes in total, split into 3 short levels. Most kids finish it over two or three sessions. Progress is saved, so they can stop any time and pick up where they left off.

Is this course free?

Yes. Solids, Liquids & Gases is one of the first 2 courses in Grade 2 Science. Create a free parent account and your child can start right away.

Does my child need to read well to use it?

No. Every lesson has a friendly read-aloud voice, questions are read aloud too, and the pictures help kids follow along. Confident readers can turn the voice off.

Can we use it for homeschool?

Yes. SkillBloom is built for homeschooling families. Kids work through lessons, games and quizzes on their own, and the parent dashboard shows what they finished and which skills need more practice. It works on phones, tablets and laptops.

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