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Ward's® AP Biology Investigation 4: Cell Processes: Diffusion and Osmosis

Avg. Ratings: 4.8 (5 Reviews)
Meets AP Science Practices 2, 4, and 5, and Big Idea 2.

  • Three separate activities to quantitatively measure osmosis and diffusion
  • Save time with well-prepared materials
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.

Ordering information: A coupon is included for redemption of perishable materials. Redeem by mail, phone, fax, or email. At times, supply may be limited due to high demand.  Please place your order approximately two weeks in advance.



Item # Description For Use With No. of Lab Groups Unit Availability Price Quantity
470134-768 AP Investigation 4: Osmosis and Diffusion Kit
8 Lab Groups 8 Kit of 1 Retrieving
470136-678 AP Investigation 4: Osmosis and Diffusion Refill
- 8 Kit of 1 Retrieving


Item # Description Length Width No. of Pages Packaging Unit Availability Price Quantity
470177-378 Phenolphthalein Agar
- - - Bottle Case of 6 Retrieving
Each Retrieving
470150-762 VWR® Lab Notebook, Grid
- - - - Case of 12 Retrieving
Each Retrieving
470023-064 Life Science Student Lab Notebook
22 cm 28 cm 70 - Each Retrieving


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Total Ratings: 5
Avg. Ratings: 4.8 out of 5

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Was this review helpful? Yes No
Yes: 1 No: 0 user
Yes, I recommend
Ample supplies given for big lab groups and a great way to introduce membrane transport through inquiry
Reply associate Published 09/01/2018
Thank you for sharing!
Was this review helpful? Yes No
Yes: 0 No: 1 
The Biobabe Education / Educator / Portland, OR
Yes, I recommend
By far this is one of my favorite AP lab kits! Ward's has done an excellent job of providing all the materials needed for all the lab activities associated with cell membrane transport (Big Idea 2). The teacher guide and the student handouts are easy to read. I especially like having the prepared cubes for the surface area to volume ratio instead of having to make my own and the pre-measured sugar packets for the osmosis activity, which can be very messy to do it yourself. These solutions can used to do a water potential extension activity. Once you've used the kit for the first time, you only need to order the refill kit. Very nice!
Reply associate Published 09/01/2018
Thank you! We're thrilled to hear you are enjoying this kit and the easy-to-use prepared agar cubes. Thanks again for sharing!
Was this review helpful? Yes No
Yes: 4 No: 2 
Yes, I recommend
Wonderful lab - was easy to follow and the students loved it, running low on supplies this year, hoping will be able to run this lab again
Was this review helpful? Yes No
Yes: 3 No: 0 
Ed Tampa Bay Area
Yes, I recommend
Phenolphthalein cubes worth it all! - For teachers like me who prefer kits because of the busy schedules we have during the school year, this is a complete one! The phenolphthalein cubes are ready to go and save much time when preparing to offer students opportunities to investigate surface area and size of cells. The cubes make this kit "good stuff"! This kit is worth considering for a diffusion and osmosis investigation. Alth
Was this review helpful? Yes No
Yes: 4 No: 2 
Bio nerd Boca Raton, Flo
Yes, I recommend
Fabulous fun learning - My students and I loved this. I had made my own blocks before but these were so much better. the students got the concept very quickly. Well done Wards....I will be ordering these again.
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