and vegetables—contains a substance called anthocyanin that changes color depending on whether it is mixed with an acid or a base. Blueberry juice normally turns red or pink in an acid, blue in a mild ...

Students will also add water and salt water to green food coloring on a coffee filter. They see a distinct difference in the way each liquid makes the colors in green food coloring separate. Make ...

The color displays are made possible by dividing the screen into small segments called pixels, each with its own liquid crystal element and a combination of red, green, and blue filters to produce a ...