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Inquiries in Science®: Changing Over Time Kit



  • Observe antibiotic resistance in bacteria
  • Discover how evolutionary relationships influence organism classification
  • Practice microbiology lab techniques

Grades 9–12. Students explore the evidence of evolution through a variety of guided-inquiry activities. First, these investigations introduce modern technologies that aid in the classification of phylogenic relationships and explore the anatomical similarities between evolutionarily related organisms. Students then use their knowledge to design and conduct an experiment based on antibiotic resistance. Kit includes enough materials (such as classroom-friendly E. coli samples, ampicillin antibiotic, and materials to prepare Luria broth agar plates) for at least 30 students working in groups. Receive a FREE digital teacher's manual and student guide with kit purchase. Note: Kit includes voucher for delivery of perishable materials later at your convenience. Contact us or return the voucher to request delivery of perishables.


Shipping Information or Purchase Restrictions
  • This item is sold and shipped to schools and businesses only. Not available to individuals or residential addresses. Visit our Login & Registration page to learn how to create a Login and link it to an approved school or business account.
What’s Included:
  • E. coli Slant Culture (voucher item)
  • 4 Ampicillin, 4 mL (voucher item)
  • 10 Sterile Luria Broth, 3 mL
  • 2 LB Agar, 400 mL
  • 40 Sterile Petri Dishes
  • 50 Sterile Antibiotic Disks
  • 30 Sterile Inoculating Loops
  • 30 Sterile Pipets
  • 1 Glass Spreading Beads, 1 oz
  • 10 Changing Over Time Structure Cards Set
  • 30 Changing Over Time Kinship Activity Sheets
  • Techniques for Studying Bacteria and Fungi Manual
  • 1 Teacher’s Manual with Reproducible Student Guide
Needed But Not Included:
  • 2 Sterile Forceps
  • 1 Microwave or Boiling Water Bath
  • 1 Refrigerator
  • 2 Beakers
  • 1 Beaker of Ethanol or Isopropanol
  • 10 Permanent Markers
  • 30 Highlighters
  • 30 Transparent Tape
  •  Pens, Pencils, or Dowel Rods (for slanting plates)
  •  Heat-Resistant Safety Gloves
  •  Autoclave (or 10% bleach solution)
Return Policy:

If for any reason you are not satisfied with this item, it is eligible for a return, exchange, refund, or credit up to 180 days from date of purchase. Restrictions may apply. Returns & Exchanges Policy.