Investigating Osmosis and Diffusion

Kit #22

$151.35

This kit stimulates students' curiosity, model an important characteristic of cells, provide a hands-on experience, and develop good laboratory technique. In this activity, students test for the presence of starch and glucose and then use these tests to observe that some molecules can pass through a membrane while others can not. In conclusion, they are asked to propose a reason for why some substances diffuse through the membrane while others do not.

Details at a Glance

1-2 Days | 1-2 ~50 minute class periods
1 Activity
Accommodates 1 class, with 12 groups of 2 students
Consumables service 24 students
Meets our criteria for supporting literacy
Includes digital resources

Complete Kit Equipment Package

Investigating Osmosis and Diffusion

#22

$151.35

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#22EL

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Scientific Concepts Guides & Student Sheets Kit Components Refills Related Products

Scientific Concepts

•Models can be used to represent systems and their interactions.
•Cells have particular structures that underlie their functions. Every cell is surrounded by a membrane
that separated it from the outside world.
•All organisms must be able to obtain and use resources, grow, reproduce, and maintain stable
internal conditions while living in a constantly changing external environment.
•All organisms are composed of cells – the fundamental unit of life.
•Cells carry out the many functions needed to sustain life.

Guides & Student Sheets

Our kits and modules provide you with everything you need so you can open, review, and teach the material confidently the next day.

Comprehensive Teacher Guide with background information, detailed instruction, example data and answers
Student Sheets with age appropriate background information, full procedure(s), and analysis items
Materials necessary for the investigation (beyond common classroom items)
Safety Data Sheets

Kit Components

36 Glucose testing strips
12 Membranes, semi-permeable
12 Cups, plastic
3 Droppers
3 Lugol’s solution, bottle
2 Glucose solution, bottle
2 Liquid Starch, bottle
1 Teacher’s Guide with MSDS
28 Student Worksheets and Guides
Not included and needed for instruction: Coffee filter.

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