User login


Search Results


Showing results (1 to 1 of 1)

  • Thumbnail
    American Chemical Society
    Add to list Details
    In this activity, learners write invisible messages on goldenrod paper, and make the message appear and disappear using acids and bases. Goldenrod paper is paper that has been dyed with natural...

    1 cent - $1 per student Ages 6 - 14 30 to 45 minutes

Current filters