Reversible Change – Explained Simply for Students
A reversible change is a type of physical change that can be undone or reversed. That means the original substance or object can be brought back to its original form. No new substance is formed, and the material’s properties stay the same.
Let’s understand this using a balloon. When you fill it with air using a pump or inflating machine, it gets bigger in size. But if you release the air, the balloon goes back to its normal shape. This change is not permanent—it can happen again and again. That’s why it’s called a reversible change.
What Happens in the Experiment?
- You place a balloon on an inflating machine.
- As air enters, the balloon inflates and grows in size.
- Press the escape button to release air.
- The balloon shrinks back to its original shape.
The balloon itself doesn’t change—only its size changes because of the air going in or out. That’s why it’s a physical and reversible change.
Where Do We See This in Real Life?
- Blowing up balloons for party decorations.
- Filling and emptying tyres in cycles or cars.
- Air mattresses that are inflated and packed easily.
- Soft plastic bottles that return to shape after squeezing.
What Will You Observe?
- Balloon inflates when air is pumped in.
- Balloon deflates when air is released.
- The material stays the same—no tearing or chemical change.
- The process can be done again and again.
Summary Table:
| Action | Effect | Reversible? |
|---|---|---|
| Inflate Balloon | Balloon becomes bigger | Yes |
| Release Air | Balloon returns to normal size | Yes |
| Shape Change | Only due to air pressure | Yes |
| Air Movement | Air goes in and out | Yes |
Explore Reversible Changes with Dencity
With the Dencity Virtual Science Lab, students can perform this Reversible Change Experiment using an animated balloon inflator and control panel. Just tap to inflate and deflate, and observe what happens.
Perfect for Class 6 to Class 8 Science, this experiment explains physical changes without needing real materials. It’s safe, repeatable, and works on Android, iOS, and desktop.
You can try this fun experiment as often as you like—just like in real life!
Dencity for Teachers
Dencity supports interactive teaching with tools made for modern classrooms:
- Teachers can demonstrate changes like balloon inflation live.
- Assign experiments as homework and track completion.
- Use drawing tools to explain pressure and volume changes.
- Enable live student interaction with the experiment.
Dencity on Interactive Touch Panels
Dencity works seamlessly on interactive touch panels, making classroom learning more hands-on. Students can tap to inflate or release air with ease, encouraging real-time engagement and discussion.
Contact us today for a demo or to get customized pricing for your school. Bring the Dencity virtual lab to your smart classroom!
Frequently Asked Questions
- What is a reversible change?
A change that can be undone to get back the original form—like inflating and deflating a balloon. - Is inflating a balloon a chemical or physical change?
It’s a physical change, and it is reversible. - What causes the balloon to inflate?
Air pressure increases inside the balloon, making it expand. - Does the balloon material change?
No, the balloon’s material stays the same. - What are some other reversible changes?
Melting butter, freezing water, and stretching rubber bands. - Can I perform this experiment in Dencity?
Yes, Dencity lets you inflate and deflate a balloon virtually. - What class is this experiment for?
Suitable for Class 6 to Class 8 Science students. - Can teachers use this in live classes?
Yes, Dencity supports interactive classrooms with live experiments. - Is Dencity available on all devices?
Yes, it works on phones, tablets, and desktops. - How can schools access Dencity?
Just contact us for a free demo and pricing details.
Use the Dencity app to explore more science experiments, enjoy interactive learning, and experience the power of a virtual science lab—fun, safe, and educational!
