We use cookies to provide you with a great user experience. By using our site, you accept our use of cookies. You can review our cookie and privacy policy here.
  • Service & Support

    Contact Us

    Our Customer Service team is available from 8am to 6:30pm, ET, Monday through Friday. Live chat is available from 8am to 5:30pm ET, Monday-Friday.

    Email Customer Service

    International Sales & Service

    We serve educators in more than 170 countries worldwide. Create a quote request on our website or contact our International Sales Team.

    International Ordering
  • Shopping

    Login or register now to maximize your savings and access profile information, order history, tracking, shopping lists, and more.

  • Quick
  • My Cart

    My Cart

    Your Shopping Cart is currently empty. Use Quick Order or Search to quickly add items to your order!

Carolina Investigations® for Use with AP® Biology: Transpiration 8-Station Kit

(in stock)


Students investigate water loss in plants as they build toward an understanding of osmoregulation and plant responses to the environment. In the Guided Investigation, students construct and use a simple potometer to measure water loss from transpiration of bush bean seedlings. In the Inquiry Activity, students explore a question about one of the various factors that affect the rate of transpiration. Kit includes enough materials for 8 groups.

Unit Connection
Unit 8: Ecology, topic 8.1: Responses to the Environment

Standards Connection
ENE-3 Timing and coordination of biological mechanisms involved in growth, reproduction, and homeostasis depend on organisms responding to environmental cues.

Time Requirements
The Pre-Lab takes approximately 60 minutes of preparation, the Guided Investigation takes approximately 60 minutes of preparation and 2 weeks to grow the plants, and the Inquiry Investigation takes approximately 45 minutes of preparation.

The Pre-Lab takes approximately 45 minutes. The Guided Investigation takes approximately 50 minutes. The time required for the Inquiry Investigation will vary based on students' plans.

Digital Resources
Includes 1-year access to digital resources that support instruction. Digital resources may include a teacher manual and student guide, pre-lab activities and setup videos, simulations, and post-lab analysis and assessments.

Prerequisite Knowledge and Skills
Students should be familiar with basic plant anatomy, including the vascular tissues of plants; the process of photosynthesis; the properties of water, specifically hydrogen bonding and water potential; and the movement of water through a plant.

AP® is a trademark registered and/or owned by the College Board®, which was not involved in the production of, and does not endorse, this product.


What’s Included:
  • 1 Bush Beans, 34 g
  • 8 Plant Bags
  • 1 Plant Tray
  • 1 Planting Cells, 36 cells
  • 8 Single-edge Razor Blades
  • 1 Spray Bottle
  • 1 Soil, 12 L
  • 1 Petroleum Jelly, 3.34 oz
  • 16 Tygon Tubing, 12 in
  • 16 Pipettes, 1 mL
  • 16 Syringes, 10 mL
  • 1 PTFE Tape
  • 1 Carolina Science Online® Resources (1-year subscription)
  • 1 Teacher's Manual and Reproducible Student Guide
Needed But Not Included:
  • 8 Ring Stands
  • 8 Extension Clamps
  • 16 Thermometers
  • 8 Stopwatchs or Clocks with a Second Hand
  •  Sink or Basin
  •  Aged Tap Water
  •  Cups or Beakers
  •  Electric Fan (option for inquiry activity)
  •  Lamp with 100-W Bulb (option for inquiry activity)
Return Policy:

This product is backed by our 100% Satisfaction Guarantee. If for any reason you are not satisfied with any item, you may return it for a replacement, a refund, or credit. Read more about our Return and Exchange Policy  »


Questions & Answers

Recommended Accessories

Recommended Accessories