Bozeman Science
AP Biology Labs - part 1
Paul Andersen details the first 7 of 13 labs in the AP Biology Curriculum. The following topics are all covered: Artificial Selection, Hardy-Weinberg Equilibrium, Comparing DNA using BLAST, Diffusion and Osmosis, Photosynthesis,...
Bozeman Science
AP Biology Lab 4: Plant Pigments and Photosynthesis
Paul Andersen explains how pigments can be separated using chromatography. He shows how you can calculate the Rf value for each pigment. He then explains how you can measure the rate of photosynthesis using leaf chads and water...
Bozeman Science
Photosynthesis Lab Walkthrough
Mr. Andersen shows you how to sink leaf chads in preparation for the AP Biology photosynthesis lab. An empty syringe is used to remove gas from the leaves before the lab. As the chloroplasts absorb light they produce oxygen bubbles which...
The Royal Institution
Jim Al-Khalili - Quantum Life: How Physics Can Revolutionise Biology
In this Friday Evening Discourse at the Royal Institution, Professor Jim Al-Khalili explores how the mysteries of quantum theory might be observable at the biological level. Although many examples can be found in the scientific...
Science360
Sucrose molecular structure - Sweet Side of Chemistry
Sucrose is table sugar—that ubiquitous sweet white crystal that sweetens our tea, coffee and apple pies, yet is also the villain blamed for tooth decay and other health issues. Through its Biological Sciences Directorate, NSF has funded...
Curated OER
Evidence of Photosynthesis
Hands on science is the way to go! Learners conduct a lab experiment to help them explain how plants make food through photosynthesis. They test for the presence of starch in leaves using iodine solution and identify the basic things...
Curated OER
Light and Starch Production in Photosynthesis
Students are given the unique opportunity to see the contrast between parts of a leaf that have photosynthesized and parts of the leaf that have not. This visual image helps students see the results of this biological process. At the...
Nuffield Foundation
Identifying the Conditions Needed for Photosynthesis
Budding biologists often ask how scientists know what they do about different topics. In the lab described here, they have a chance to find out first-hand about the requirements for photosynthesis. Three sequential investigations are...
Curated OER
Dissolved Oxygen and Photosynthesis: 1
Students are taught that plants produce oxygen underwater, and they design an experiment that test this question. They discuss whether plants give off oxygen, and how to measure this. Students measure the increase in dissolved oxygen...
Curated OER
Photosynthesis
Students conduct a variety of experiments on photosynthesis. In this biology lesson, students identify the factors required for the process to occur. They perform computerized experiments to test the amount of oxygen produced when plants...
Curated OER
Terrestrial Sequestration - Photosynthesis and Cellular Respiration
Students investigate how plants absorb carbon dioxide during photosynthesis. In this biology lesson plan, students differentiate photosynthesis and cellular respiration. They discuss the important role of plants in the environment.
Sunlight Cal-Tech
Chromatography of Plant Pigments
Through a hands-on activity, an acetone-spinach solution is pre-made and learners use this solution to separate the pigments found in spinach using chromatography. The comprehensive resource includes an analysis and conclusion questions.
Curated OER
Elodea Lab
Students observe the changes between elodea leaves placed in darkness and light. In this life science lesson, students experiment to find evidence of photosynthesis in elodea leaves. Students use indicators to detect the presences of...
Curated OER
Mussel Your Way Through Photosynthesis
Students, using zebra mussels (Dreissena polymorpha), elodea and an indicator dye, observe and record the role of light in photosynthesis. They consider plant production of carbon dioxide and the use of live materials in biological...
Curated OER
Alcoholic Fermentation in Yeast
Biology learners investigate the effect of sucrose concentration on yeast alcoholic fermentation. During the lesson,they compare and contrast the processes of cellular respiration and alcoholic fermentation. They design an experiment to...
Nuffield Foundation
Measuring the Rate of Metabolism
Plant respiration can be a difficult concept for young biologists to grasp; with a hands-on lab, learners can collect and graph data, then calculate the metabolism rate for the plants they studied. If you do not have a respirometer,...
Curated OER
Chlorophyll
Students explain the importance of chlorophyll in plants. In this biology lesson, students extract chlorophyll from different plant sources using chromatography. They discover the different factors needed for photosynthesis to take place.
Curated OER
Plant Transpiration
Students conduct various experiments to investigate plant transpiration. In this biology lesson, students explain how this process helps maintain the hydrologic cycle. They measure the rate of water loss in plants using a potometer.
Curated OER
Color Change in Leaves
Students identify the different leaf pigments and colors. For this biology lesson, students perform chromatography to separate them. They explain how light affects green leaf colors and causes falling leaves in autumn.
Curated OER
Glucose
Students conduct various experiments on glucose. In this biology lesson, students differentiate the process of diffusion and osmosis. They test different foods for the presence of glucose and starch.
Curated OER
Plankton / Phytoplankton
Students discuss the importance of plankton in the ocean ecosystem. In this biology instructional activity, students identify the different types plankton by observing them under the microscope. They explain how plankton population...
Curated OER
Algae Experiments
Learners describe the characteristics of algae. In this biology lesson, students perform a series of experiment to explore algae. They investigate the basic things algae need to survive.
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
Glucose Factory
Fourth graders determine, through laboratory activity, the presence or absence of glucose in a variety of plant leaves and stems. They work in groups and perform a three part laboratory which shows them how plants convert sunlighht to food.