Balloon and Bubble Science: Air Is Everywhere!
Materials Needed
- 2–3 balloons
- String or yarn
- Drinking straws
- Tape
- Bubble solution and bubble wands
- A shallow bowl or tray
- Water
- Dish soap
- A measuring cup or spoon
- Paper and crayons or colored pencils
- Optional: a balloon pump, paper towels, and a timer
Learning Objectives
By the end of the lesson, the learner will be able to:
- Tell that air takes up space, even though we cannot see it.
- Show that air can make things move.
- Describe at least one way balloons and bubbles are alike and one way they are different.
- Make a prediction, test it, and talk about what happened.
Success Criteria
I can:
- Use the words air, push, move, and float.
- Explain that a balloon gets bigger when air goes inside.
- Make and test a prediction.
- Draw or tell one thing I learned.
Lesson at a Glance
Suggested time: 35–50 minutes, with optional extra activities
Big question: What can air do?
Introduction: The Balloon Mystery
Hook
Hold up an empty balloon and ask:
“This balloon looks empty. What do you think will happen when air goes inside?”
Let the learner share ideas. Say:
“Today we will be air scientists. We will use balloons and bubbles to find out what air can do.”
Warm-Up Questions
- Can you see air?
- Can you feel air?
- Where might we find air?
- What happens when you blow on your hand?
Safety reminder: An adult should supervise balloons and bubbles. Do not put balloons in mouths, and pick up broken balloon pieces right away. Do not drink bubble solution.
Body: Explore Balloons and Bubbles
Part 1: I Do — Air Takes Up Space
Show the learner an empty balloon. Stretch it gently and say:
“The balloon is not really empty. It has air around it. When I blow air inside, the balloon gets bigger. The air needs space.”
Blow up the balloon and hold the opening closed. Ask:
- What changed?
- What is inside the balloon?
- What might happen if I let go?
Let the balloon go without tying it. Watch it fly around. Say:
“The air pushes out of the balloon. The pushing air makes the balloon move.”
Quick Check
Ask the learner to complete this sentence:
“The balloon gets bigger because ______ goes inside.”
Part 2: We Do — The Balloon Rocket
Work together to make a simple balloon rocket.
- Thread a long piece of string through a straw.
- Ask the learner to help stretch the string tightly between two safe points.
- Blow up a balloon, but do not tie it.
- Use tape to attach the balloon to the straw. Point the balloon opening backward.
- Make a prediction: “Will the balloon move fast, slowly, or not at all?”
- Let go of the balloon and watch it travel along the string.
Talk about what happened:
- Which way did the air go?
- Which way did the balloon go?
- What pushed the balloon?
Use simple language:
“The air rushed out one way. The balloon moved the other way.”
Part 3: We Do — Bubble Discovery
Place a little bubble solution in a tray. Invite the learner to make bubbles with a wand.
Ask the learner to watch carefully:
- What shape are most bubbles?
- What is inside a bubble?
- What happens when a bubble touches the ground?
- Can you catch a bubble gently?
Explain:
“A bubble is a thin, soapy coat wrapped around air. The air is inside the bubble.”
Try blowing bubbles in different ways:
- Blow softly.
- Blow hard.
- Blow one big bubble.
- Blow many small bubbles.
Ask:
“What changed when you blew softly or strongly?”
Part 4: You Do — Young Scientist Challenge
Let the learner choose one challenge.
Choice A: Balloon Challenge
Test whether a balloon travels farther when it has:
- A little air
- A medium amount of air
- A lot of air
Before each test, ask the learner to make a prediction. After each test, compare the results.
Choice B: Bubble Challenge
Try to make:
- The biggest bubble
- The smallest bubbles
- The most bubbles at one time
Ask:
- What did you do to make the bubbles change?
- Which way worked best?
Choice C: Bubble Art
Add a tiny amount of washable paint or food coloring to bubble solution. Blow bubbles onto paper and let them pop to make bubble prints.
Ask the learner to describe the shapes and patterns they see.
Note: Use only a small amount of coloring and protect the work surface. Do not use colored bubbles near clothing, furniture, or carpet.
Think-Pair-Share or Talk-and-Tell
If learning with another person, ask the learner to think quietly, talk with a partner, and share an answer. For homeschool learning, the adult can be the talking partner.
Choose two questions:
- How are balloons and bubbles alike?
- How are balloons and bubbles different?
- How did air make the balloon move?
- What made the bubbles pop?
- What would happen if there were no air?
Formative Assessment: Check as You Go
Listen for whether the learner can:
- Identify air as being inside balloons and bubbles.
- Explain that air can push or move things.
- Make a prediction before an experiment.
- Describe what happened using simple words.
Use encouraging prompts:
- “What makes you think that?”
- “What did you notice?”
- “Was your prediction correct? What did you discover?”
- “Can you show me how air made something move?”
Summative Assessment: Show What You Know
Ask the learner to choose one way to demonstrate learning:
- Draw a balloon and a bubble, then tell what is inside each one.
- Show how air makes a balloon move.
- Explain how balloons and bubbles are alike and different.
- Tell a family member three things learned about air.
Simple Success Rubric
| Skill | Doing Well | Still Practicing |
|---|---|---|
| Understands air | Says that air is inside balloons and bubbles. | Needs help explaining where the air is. |
| Explains movement | Says that air can push or move things. | Needs help connecting air and movement. |
| Uses science words | Uses words such as air, push, move, or float. | Uses the words with reminders. |
| Shares learning | Draws, demonstrates, or explains one discovery. | Shares an idea with adult support. |
Differentiation and Support
For a Learner Who Needs More Support
- Use one-step directions: “Blow.” “Watch.” “Tell me what happened.”
- Offer sentence starters: “I see…,” “The air made…,” and “My prediction was…”
- Let the learner point, act, or draw an answer instead of explaining with many words.
- Use only one balloon activity and one bubble activity if the full lesson feels too long.
For a Learner Ready for More
- Measure how far the balloon travels with different amounts of air.
- Test whether a balloon travels differently on a short or long string.
- Design a new balloon vehicle and explain how it moves.
- Investigate whether bubbles last longer inside or outside, in a warm or cool place, or in still or moving air.
Real-World Connection
Say:
“Air helps many things work. Air fills bicycle tires, helps kites fly, moves sailboats, and helps us breathe. Balloons and bubbles help us see what air can do.”
Conclusion: Tell What We Learned
Return to the big question:
“What can air do?”
Help the learner recap:
- Air takes up space.
- Air can push and move things.
- A balloon has air inside it.
- A bubble is a thin soapy coat around air.
- Scientists make predictions, test ideas, and notice what happens.
Exit Ticket
Ask the learner to finish one sentence:
- “Today I learned that air can…”
- “My favorite experiment was…”
- “I wonder what would happen if…”
Optional Follow-Up Activities
- Look for examples of air at home, such as fans, tires, straws, and kites.
- Make a paper airplane and test how air helps it fly.
- Blow on different objects and sort them into objects that move easily and objects that do not.
- Keep a simple science journal with a drawing and one sentence about each experiment.