 | Table salt crystals (NaCl) |
 | Molecular model of NaCl crystal, made by students from gumdrops and toothpicks. Colored marshmallows or styrofoam spheres can be used instead, and for other molecular modelling as well |
 | Microscopic view of alga/seaweed scraped from Pioneer |
 | Another microscopic view of alga/seaweed scraped from Pioneer |
 | Artemia (brine shrimp, "sea monkey") eggs, can be hatched in class |
 | Early larval stage of artemia |
 | More advanced stage ("nauplius") of artemia, showing larval red eye |
 | Same, seen sideways |
 | Yet later in development... |
 | Adult male |
 | Adult female |
 | Cupful of adult artemia, seen from above, with chlorophyll "poops" from digested phytoplankton |
 | Salad-bar container aquarium for artemia, with mating pair. Sealed shut, and with only Sunlight coming in, the closed ecosystem of alga and artemia can sometimes last for generations. Makes the points that:
- Sunlight powers ecosystems
- atoms are reused - regenerated oxygen keeps animals from suffocating
- recycle salad containers into interesting and useful objects!
|
 | A well-populated artemia salad-bar aquarium |
 | An amphipod (relative of shrimp) from a fouling community from Pioneer's hull (as seen under a microscope) |