Curated OER
Simplified Botany--Leaf Chromatography
Students investigate the different pigments contained in green leaves by completing an experiment that strips away the chlorophyll and separates the pigments left behind.
Curated OER
Photosynthesis
Students recognize the importance of plants as they perform an experiment involving photosynthesis. Students determine the optimum wavelength of light for photosynthesis by exposing plants to different colors of light, collecting data,...
Curated OER
Obtain a visible spectra of chlorophyll a
Students become familiar with the concept of spectroscopy or the study of the interaction of matter with electromagnetic radiation. They prepare solutions and measure absorbance at different wavelengths. Pupils comprehend that mater and...
Curated OER
Demonstrating That Light is Dissipated as Chlorophyll a Fluoresces
Students examine the concepts of light and chlorophyll. They participate in an experiment in which the chlorophyll shows as a red ring on the test tube. They answer discussion questions to end the lesson.
Curated OER
Signs of Autumn
Second graders study photosynthesis and explore how chlorophyll is important to leaves and why leaves change colors in the fall.
Curated OER
Generate a Calibration Curve for Chlorophyll a
High schoolers measure and graph the absorbance of light by chlorophyll at a specific wavelength versus chlorophyll concentration. They are given an unknown and determine its concentration from their calibration curve. Students become...
Curated OER
Iron Fertilization - Pumping Iron
The theory that adding iron to ocean water may increase phytoplankton ability to remove carbon dioxide from the atmosphere is examined. The Monterey Bay Aquarium Research Institute is monitoring conditions off the California coast to...
Curated OER
Nutrients In Chesapeake Bay
Students perform pH and turbidity test to determine water quality. In this environmental science lesson, students analyze NASA database on chlorophyll-a in the bay. They explain how a small river area affects Chesapeake Bay.
Curated OER
Testing Leaves for Starch: the Technique
Like good scientists, kids often want to see first-hand why things are as they are; they can do just that in the starch-testing photosynthesis activity found here. Depending on the age of your pupils, you may wish to do the investigation...
Curated OER
Mighty Oaks from Little Acorns
What does it mean to grow? To germinate? For the plan detailed here, class members investigate the growth process of an oak tree while focusing on the beginning stages of planting and germination. They plant seeds and record observations...
Curated OER
Rate of Photosynthesis
Students investigate the rate of photosynthesis using elodea leaves. In this photosynthesis lesson plan, students place elodea in a test tube filled with water. They include baking soda and place the test tube under a lamp. Students...
Curated OER
It's All About the Roots
Students investigate the process of hydroponic agriculture. They grow beans in different hydroponic solutions, compare results and graph their observations.
Curated OER
Paper Chromatography-Chemical and Mechanical
High schoolers perform paper chromatography to determine pigments in plants. In this paper chromatography lesson plan, students isolate leaf pigments, prepare a chromatogram and place their chromatogram in a solvent to separate the...
Curated OER
Ecology of the Savanna-Forest Boundaries in Central Brazil
Students explore photosynthesis. In this photosynthesis lesson, students label parts of photosynthesis and take notes. Students conduct experiments on leaves, make observations and record their findings.
Curated OER
Tree Friends
Students are introduced to tree structure and use. They identify their special tree using all senses except sight. Students identify six different internal parts within a cross section of tree trunk (bark, phloem, xylem, cambium,...
Curated OER
Using Chromatography to Identify Unknowns
Students are introduced to the concept of chromatography. They practice using new vocabular and observing experiments. They answer discussion questions to end the lesson.
Curated OER
COMPARE SOILS BY GROWING PLANTS
The student will identify the difference in the rate of plant growth in three soils that vary in organic matter.1. Obtain three to four flowerpots, different types of soil, a record chart, three to five beans for each pot, and water....
Curated OER
Natural Dye Lesson Plan
Learners investigate major pigments which occur naturally in fruits and vegetables, and to use them to dye a number of items. They study the effects of pH on anthocyanin on pigments.