Bubble experiment

Project Summary

We investigated how the amount of detergent affects the formation of bubbles. Specifically, we wanted to determine which concentration of detergent produces larger and longer-lasting bubbles. Our goal was to compare two different detergent concentrations while keeping all other variables the same, in order to identify the most effective mixture for bubble formation.

Why did you do this project?

We did this project to understand how different mixtures can change the properties of bubbles. We wanted to find out which amount of detergent creates stronger, bigger, and longer-lasting bubbles. This experiment also helped us learn how to test one variable at a time and make fair comparisons to solve a simple scientific problem.

How did you make your project or solve this problem?

We built our own bubble makers using simple materials such as straws, tape, and a plastic ring. Then, we prepared two solutions with the same amount of water and glycerin, changing only the amount of detergent. We tested each mixture by blowing bubbles and observing their size and how long they lasted. Finally, we compared the results to determine which solution worked best.

What did you find out?

We found that the solution with more detergent generally produced larger and more durable bubbles. The bubbles lasted longer before popping, which showed that the mixture created a stronger film. By comparing the results from both solutions, we were able to see clear differences in size and duration. These observations helped us identify which concentration worked better for making bubbles.

Why do your results matter?

Our results show that changing the amount of one ingredient can significantly affect the outcome of a mixture. We learned that detergent plays an important role in making bubbles stronger and longer-lasting. This project helps us understand how small changes in materials can improve everyday products and teaches the importance of testing and comparing results in science.

What could you do next?

Next time, we could test more detergent concentrations to find the exact amount that works best. We could also repeat the experiment more times and measure the bubbles more precisely to improve our data. In addition, we could explore other factors, such as adding different ingredients or changing the size of the bubble maker, to see how they affect the results.

References

We used the initial idea from the Savvas Elevate Science Grade 2 book (pg. 27) and adapted it into a more engaging experiment by building our own bubble makers. We also used basic science knowledge about mixtures and bubbles from classroom lessons. We would like to thank our teachers VS, CR, and JL for guiding us through the experiment, and all the students for their teamwork and participation.

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