User login


Search Results


Showing results (1 to 3 of 3)

  • Thumbnail
    Lawrence Hall of Science
    Add to list Details
    In this activity, learners explore a bucket of sand and beach objects. First they sort items using observable characteristics, then they turn hard candy into "candy sand" to model where...

    Ages 4 - adult
  • Thumbnail
    New Jersey Department of Education
    Add to list Details
    In this activity, learners create a freshwater ecosystem in a large plastic bottle. Learners cut and prepare bottles, then fill with water, aquatic plants, snails and fish. Learners observe their...

    Ages 8 - 18
  • 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....

    Ages 11 - 14