Your Guide to Science Fair Topics, Ideas, Experiments, and Winning Displays
How to Prepare Red Cabbage pH Indicator While the cabbage shown is definitely purple, it is commonly called RED cabbage. With that out of the way, I have a brand new way to extract the colored juice from this cabbage. FREEZE IT!! This was one of those serendipitous discovery. Not wanting to discard an old [...]
How to Calibrate a pH Scale for Red Cabbage Juice The scale shown was calibrated by KBolden. It gives you an idea of what a completed scale might look like. Notice that at the top and bottom of the scales, the color appear to be too make a distinction. If you get a color scale [...]
ABOUT ME: Hi, I am Janice VanCleave, author of 50 best-selling science experiment books for children ages 4 through high school. I taught science for 27 years.
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