Meets AP Science Practices 2, 4, and 5, and Big Idea 2.

The Only Kits Aligned with AP Science Practices
Ward's AP Biology Investigations provide complete coverage of the Four Big Ideas and Seven Science Practices to help you meet new AP Biology curriculum standards and prepare students for real-world success in college and research-level labs.

This complete series of investigations emphasizes the progression to fully student-directed investigations and builds competence in all of the science practices, helping students:
•Practice concept application instead of fact memorization.
•Focus on self-guided experimentation instead of step-by-step lab procedure.
•Investigate real-world concepts with greater curriculum flexibility.
•Apply problem-solving skills to strengthen student inquiry.

Each investigation follows a series of three parts, beginning with a structured lab investigation, followed by a related guided inquiry investigation with thoughtful assessment questions, and finally, suggestions to encourage students to formulate their own questions and explore further self-guided experimentation.

In this invesitgation...

Using two different models, students will simulate the movement of water and nutrients across a cell membrane and observe osmosis in living tissue, enabling a clear understanding of the properties of osmosis and diffusion and their role in maintaining homeostasis in the cell. As a result, students will be able to pose their own scientific questions about the selective permeability properties of cell membranes and provide explanation for how cell size and shape affect rates of diffusion. Investigation includes updated literature aligned with new AP Biology curriculum standards for 2012. Meets AP Science Practices 2, 4, and 5, and Big Idea 2. Materials provided for 32 students in eight lab groups.
Note: Coupon is included for redemption of perishable materials. Redeem by mail, phone, fax, or email.

Connect to Quality and Precision in this Activity with Ohaus®
Ohaus balances, scales, and equipment meet the highest quality standards and are proven to be reliable in your classroom for years of use. Use the Ohaus Adventurer™ Pro Precision Balance, item number 156291, with AP Biology Investigation 4 to measure cell size and study rate of diffusion.

• Three separate activities to quantitatively measure osmosis and diffusion
• Save time with well-prepared materials
• Available for individual student use or class-size kit

Using two different models, students will simulate the movement of water and nutrients across a cell membrane and observe osmosis in living tissue, enabling a clear understanding of the properties of osmosis and diffusion and their role in maintaining homeostasis in the cell. As a result, students will be able to pose their own scientific questions about the selective permeability properties of cell membranes and provide explanation for how cell size and shape affect rates of diffusion. A refill kit is available and contains only consumable component items it does not contain additional student or teacher guides. Note: Due to regulatory issues, Elodea is not included in the new kit.

AP and Advanced Placement Program are registered trademarks of the College Entrance Examination Board, which was not involved in the productionof and does not endorse these products.

Individual student kit contains reduced quantities of materials to perform most activities, but on an individual student basis.