User login


Search Results


Showing results (1 to 2 of 2)

  • Thumbnail
    Lawrence Hall of Science
    Add to list Details
    In this activity, learners observe mixtures of sand samples glued to note cards, and consider how sand can differ in size, shape, and color, and where it comes from. The goal is to help learners...

    1 cent - $1 per group Ages 4 - adult 10 to 30 minutes
  • Thumbnail
    4-H
    Add to list Details
    In this ecology activity, learners make a model water-based ecosystem called a terraqua column. The column (in a large soda bottle) includes pond water, duckweed, sand or gravel, and small snails....

    Over $20 per group Ages 11 - 14 1 to 2 hours