Curated OER
Starch is Everywhere
In this science worksheet, students add a few drops of iodine solution to each of 10 substances to determine if they contain starch. The iodine will turn blue if the item contains starch.
Curated OER
Science as Inquiry: what is starch and how can we test it?
Sixth graders discuss nutrients and examine foods for starch. In this starch testing lesson plan, 6th graders use iodine to test foods for starch and record their results. Students complete a worksheet and self reflection.
Curated OER
Macromolecule Lab
During a macromolecule lab, young chemists perform multiple tests, including iodine starch tests, to determine if eight mystery foods contain lipids, sugars, or starches.
Curated OER
Monomer and Polymer Chemistry
Students explain monomer/polymer chemistry of starches and sugars.
Curated OER
Sugar and Light
Pupils connect starch to sugar as the storage form of energy. They find that no starch is produced in the plant without light. Students perform the old favorite of looking at starch deposition in geranium leaves using Lugol's iodine...
Curated OER
Starches and Fats
Students observe the presence of starches and fats in different foods. In this science lesson plan, students distinguish between a food that contains starch and a food that contains fats, define the terms starches and fats, and classify...
Curated OER
Digestion Experiment and Teacher Made Test
Learners complete a digestion experiment using sugar, iodine, corn starch, and sugar test paper to test for starch and sugar in the body. In this digestion lesson plan, students learn how the body breaks down different ingredients.
Curated OER
Your Digestive System
In this digestive system worksheet, 9th graders identify and explain any difference found in color of the mixtures in two glasses. Then they determine what enzyme was produced by glands in the mouth changing the starch in a chewed cracker.
Nuffield Foundation
Enzyme-Catalysed Synthesis
Enzymes: not just for breaking chemicals apart. Young biologists perform an experiment on potatoes. They first remove starch from potato extract. They then add the resulting liquid to samples of glucose-1-phosphate, glucose, maltose, and...
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...
University of California
You Are What You Eat: Testing for Organic Compounds in Foods
We have all heard that we are what you eat, but what are we eating? An informative lesson opens with a discussion of the foods pupils have recently eaten. Then, young scientists perform four experiments on seven different foods to...
Curated OER
Diet: Find the Carbohydrates
Students discover and discuss the functions of carbohydrates. Once they have taken notes and completed worksheets, they perform experiments using iodine to test for starch. Lesson topics include how carbohydrates are processed by the...
Curated OER
Mystical Membrane
Students investigate osmosis, diffusion and a semi-permeable membrane. In this cell membrane lesson plan, students observe the movement of molecules out of a bag filled with sugar and starch into a beaker of water. They test the beaker...
Curated OER
Breaking It Down
Seventh graders explain the mechanism of digestion. In this biology instructional activity, 7th graders perform an iodine test to check for the presence of starch. They discuss how energy travels through the food chain.
Curated OER
Movement Across the Membrane (Diffusion)
Students investigate the concept of diffusion and how materials enter and leave a cell. In this movement across a membrane lesson plan, students use perfume, food coloring in water and a sugar cube in water to observe diffusion. They...
Curated OER
Amylase Enzyme In Saliva
Students test for amaylase enzyme in a variety of substances. Student pairs perform a series of tests to determine how long it takes the starch sample to change to sugar molecules and the blue color to disappear when various saliva...
Curated OER
Identifying Food Nutrients
High schoolers pretend they are a food-quality tester. They develop a kit to test food for sugars, starches, proteins and lipids. They answer questions to complete the lesson.
Curated OER
PhysioEx: Chemical and Physical Processes of Digestion
In this anatomy worksheet, students complete 22 review questions in the format of short answer, table completion, and fill in the blank after finishing an online virtual experiment about the chemical and physical processes of digestion.
Curated OER
How Amylase Works
For this how amylase works worksheet, students read a short article and then choose the multiple choice answer to 7 questions relating to amylase. Students then complete 3 step-by-step experiments.
Curated OER
Osmosis
Students investigate osmosis and diffusion in a liquid environment. In this osmosis lesson plan, students use dialysis tubing made into bags and filled with 3 different solutions. They observe the movement of water molecules into higher...
Curated OER
The Scientific Method Using Mystery Powders
Students use the scientific method to determine physical and chemical properties of unknown substances. In this scientific method lesson plan, students discuss chemical and physical properties of substances as a class after a...
Curated OER
A Very Simple Conductivity Meter
Students investigate the hardness of different water samples using the conductivity meter. In this chemistry lesson, students build their own meter following specific procedures. They identify an unknown sample of water.
Curated OER
Science Lessons that Create the Right Chemistry!
Mix it up in your classroom with some chemistry investigations!
Curated OER
Photosynthesis
In this photosynthesis worksheet, students follow the steps to complete a science investigation and then respond to 8 short answer questions regarding the photosynthesis investigation.