Product |
Grade Level |
Format |
Price |
|
 |
Bacteria VHS Bundle VHS Save with this best-selling video bundle of Understanding: Bacteria and Understanding: Viruses.  |
6 - 12 | VHS |
$89.95
|
 |
Bacteria, Viruses & Allergies VHS What do salmonella, wasp venom, and the flu have in common? They all cause our immune systems to spring into action. |
3 - 5 | VHS |
$59.95
|
 |
Bacteria: Friends or Enemies? VHS Gain an appreciation for bacteria and their important role in the world. |
6 - 12 | VHS |
$59.95
|
