Rock Solid Science: Year 3/4 Investigate the Best Stone for a Statue!
This week in Science, our Year 3/4 pupils became geologists as they investigated which types of rock would be best for building a statue in our local park. The children learned that rainwater is slightly acidic, which means it can slowly wear away certain types of rock over time.
To test this idea, we placed different rocks in white vinegar—a safe acid that behaves similarly to acid rain. If a rock started to bubble, it meant it was reacting to the acid and would likely wear away more quickly outdoors.
What We Discovered:
- Chalk bubbled the most, showing it reacts quickly with acid and wouldn’t last long outside.
- Marble and granite showed little or no reaction, meaning they are much more resistant to acid rain.
Our Conclusion:
Granite would be the best choice for a statue in our park—it’s the hardest and most resistant to acid rain.
The children really enjoyed this hands-on investigation and learned how science can help us make practical decisions in the real world. A brilliant blend of curiosity, teamwork, and real-world learning—well done, Year 3/4
Year 3/4 Science Rock Lesson 2025
