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Middle School



- Growth and Development
Bioassay Experiment
Running a bioassay and understanding the results are critical skills in environmental science. Environmental scientists use bioassays to study the effects of chemicals on biological organisms and to estimate their relative toxicity. In this kit, stud...
Gibberellic Acid and Plants Kit
What effects do hormones have on plants? Will different concentrations of hormones affect plants differently? Students will be introduced to plant hormones and will see firsthand the powerful effects of gibberellic acid. Students place gibberellic ac...
Growing Gloves Super Value Kit
What a view! Enable your students to clearly observe all the structures of “unknown” germinating seeds right on your classroom window. Clear, plastic, five-fingered gloves allow comparison of different plant embryos as they grow and develop into plan...
Plant Pigment Chromatography - Student Laboratory Kit
Provide your students with an exciting method to study and compare plant pigments. Using thin-layer chromatography, students can separate and compare chlorophylls and accessory pigments found in two different plants. This kit makes it easy to set up ...
Plant Symbiosis and Nitrogen Fixation Kit
This kit is designed to illustrate the relationships between bacteria, nitrogen fixation, nitrogen cycling and plant nutrient requirements. Your students will learn what farmers have known for some time-the role the bacteria play and how the plants b...
Plant Tropisms Kit
Why do roots grow down and stems grow up? Can plants be fooled into different growth patterns? In this series of laboratory experiments, students grow plants in unique ways, observe patterns of plant root and stem growth, and answer questions about p...
Plant Wars Kit
Plants are “at war” all around us-engaging in allelopathy. Allelopathy is a poorly-understood process in which certain plants release chemicals that inhibit the growth of other plants. One of the best known examples is the black walnut, Juglans nigra...
Root-Vue Farm
Literally a window into an unseen world, the Root-Vue Farm enables students to observe and chart the development of a plant's root system. A fun way to learn that there's much more to a plant than (usually) meets the eye. The complete package include...
Seed Germination and Moisture
The experience of watching seeds germinate and determining what might affect that germination is very revealing to students. Students use a variety of “liquids” on radish seeds to determine their impact on germination. The results will surprise stude...
Stomata and Transpiration Rates Student Laboratory Kit
Strengthen your students' knowledge and understanding of stomata and transpiration with this engaging two-part student lab activity. Students first observe the physical properties of stomata and determine the average number of stomata in a leaf by vi...
The Grass Won't Grow
Why does grass grow in one area and not another? In this activity, seeds will be planted in two different environments and the results of growth compared. Following the rules of the scientific method, students will define the problem, make observatio...
Tree Growth Study Student Laboratory Kit
Trees contain some of nature's most accurate records of the past. Students will unlock these historical mysteries and uncover environmental trends of the past by studying actual tree round samples. The differences between hardwood and softwood trees,...
What Is In A Seed? Kit
What parts of a seed are required for plant growth to begin? Students will explore this question as they dissect bean seeds, plant the seed parts, discover which will germinate and develop. Your biology classroom will come to life—literally—using thi...

Teacher Resources

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