Minerals in Water
Energy and Change
Benjamin Yerger
- Grade:
- 5
- Teacher:
- Chloe Perdreauville
Testing if water hardness has an effect on the amount of lather created when various types of water are combined with soap and shaken. Does the hardness create less lather than softer water?
You did a great job explaining what water hardness is and why it matters in real life. I like that you included both hardness and pH measurements and compared them to suds height. That shows advanced thinking. When the results did not fully match your hypothesis, you explained it. Excellent research background and thoughtful analysis of unexpected results. Great Job!
This project was well executed and very clearly presented. The student asked a meaningful question, developed a solid plan, collected data carefully, and explained the results honestly. The graphs and photos effectively illustrated the work and demonstrated an understanding of how minerals in water affect soap. Even though the results differed from the original expectation, the student thoughtfully explained why this might have occurred, showing strong scientific reasoning.