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Exploring the Chemistry of Slime: PVA and Borax Experiments in High School

This project investigates the creation of slime using PVA, borax, and water, conducted by Grade 2 students at KOSHI High School. We altered the concentrations of PVA and borax to study their effects on slime properties. Two key experiments were performed: one focused on varying PVA and borax concentrations, and the other involved making slime in phenolphthalein to observe color changes in different pH environments. Through these experiments, we aim to reveal insights into the slime's character, structure, and optimal preparation conditions.

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Exploring the Chemistry of Slime: PVA and Borax Experiments in High School

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Presentation Transcript

  1. SLIME ~PVA become gel~ Ito Kazuki Oshima Kaisei Kimura Saki KOSHI High School Grade 2

  2. What’s Slime? ・It’s made from PVA, borax and water. PVA Borax

  3. We changed the reactants • We made slime in a pH indicator.

  4. Experiment 1 We changed the reactants (1)We changed the concentration of PVA. (2)We changed the concentration of Borax.

  5. ★Result★

  6. Borax 4% Amount of water in slime • Concentration of PVA(%)

  7. Borax 4% • Concentration of PVA(%)

  8. Borax 2% Amount of water in slime • Concentration of PVA(%)

  9. Concentration of PVA(%)

  10. Borax 1% Amount of water in slime

  11. Borax 1%

  12. Experiment 2 We made slime in a pH indicator. (1) We made slime in phenolphthalein. Phenol- phthalein

  13. Phenolphthalein slime BTB slime

  14. ★BTB★ acid basic ☆phenolphthalein☆

  15. Subject from now on

  16. 1. We are going to consider how we can change the color of the slime.

  17. 2. • We would like toinvestigate more about the character, the structure, and the conditions of making the slime.

  18. Thank you for listening!!! Big love!

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