AI Image Prompt:
Create a visually engaging and informative image to be used as a background for a presentation on pH indicators. The image should depict a typical pH scale ranging from 0 to 14 with corresponding colors associated to each pH value, from red (acidic) through green (neutral), to purple (alkaline). Also, include various types of commonly used pH indicators such as litmus paper, universal indicator and phenolphthalein, demonstrating color changes upon contact with different pH substances. Please maintain an academic and professional aesthetic to ensure it is suitable for a scientific presentation setting.
