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Item #: FB2052 

Price: $93.29

In Stock.

In the Cell Size and Diffusion Laboratory Kit for biology and life science, cut open stained agar cells and see the diffusion pattern for yourself.

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Item# FB1638 FB2052
Type of Kit Student Laboratory Kit Super Value Laboratory Kit
Price $55.87 $93.29
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Product Details

Why are cells so small? Why aren’t cells larger? Wouldn’t it be more efficient to have larger cells? When your students cut open their stained agar cells and see the diffusion pattern for themselves, the answers will be obvious. Student measurements and calculations during this hands-on laboratory will dramatically clarify the concept of surface area to volume ratio. This concept is key to understanding cell size limitations. Teacher Notes, reproducible student handouts and all necessary chemicals and specialized equipment are provided.

Complete for 30 students working in pairs. Super Value Kit is complete for 5 classes of 30 students working in pairs.


Materials Included in Kit: 
Agar, 20 g
Agar, 40 g, 2
Hydrochloric acid solution, 1 M, 500 mL
Phenolphthalein solution, 0.5%, 20 mL, 3
Cup, clear plastic, 9 oz, 15
Plastic knife, 75
Ruler, metric/english, clear, 15
Teaspoons, plastic, 75
Tray, white bottom, clear lid, 5

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Asking questions and defining problems
Developing and using models
Planning and carrying out investigations
Analyzing and interpreting data
Using mathematics and computational thinking
Constructing explanations and designing solutions
Engaging in argument from evidence

Disciplinary Core Ideas

MS-PS2.A: Forces and Motion
MS-PS2.B: Types of Interactions
MS-LS1.A: Structure and Function
HS-PS2.A: Forces and Motion
HS-PS2.B: Types of Interactions
HS-LS1.A: Structure and Function

Crosscutting Concepts

Cause and effect
Scale, proportion, and quantity
Systems and system models
Structure and function
Stability and change

Performance Expectations

MS-PS2-3. Ask questions about data to determine the factors that affect the strength of electric and magnetic forces
MS-PS2-5. Conduct an investigation and evaluate the experimental design to provide evidence that fields exist between objects exerting forces on each other even though the objects are not in contact
MS-LS1-2. Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.
HS-LS1-3. Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.