Curated OER
Ground Level Ozone Testing
Students prepare Shoenbein Paper to test the ground level of ozone. They dip a strip of their test paper in distilled water and hang it at a data collection site. They determine the relative humidity of the data collection site. Using a...
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.
Curated OER
Food & Science - How Healthy is Your Diet?
Learners experiment with various foods to determine fat and starch content. They rub jam, peanut butter, bananas, and other foods in a small circle on a piece of paper, and observe the results. If there is a high fat content in the...
Curated OER
Plant Growth and Environment
Third graders bring to school various green plants and categorize them into plant leaves, stems, roots, and fruits. They answer the question, "How can you show there is starch in a plant?" and perform the iodine test and describe the...
Virginia Department of Education
The Ratio of Surface Area to Volume
Demonstrate the ratio of surface area to volume in your high school class by using phenolphthalein, gelatin, and an onion. Intrigue the class by leading a discussion on osmosis and diffusion, then making "scientific jello." Participants...
Curated OER
Analysis of Bleach
Students analyze and compare laundry bleaches by testing their oxidizing powers. They conduct their lab experiment, compare/contrast their results with other students' work, and complete a worksheet.
Curated OER
Nutrient Analysis Lab
In this nutrient analysis lab instructional activity, students perform several experiments in a lab setting. Students test products for carbohydrates (monosaccharides and polysaccharides), proteins, lipids, and starches.
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
Physical and Chemical Change of Six White Substances
Students investigate chemical and physical changes in reactions. For this chemical and physical change lesson plan, students mix 6 different white substances with water, vinegar and iodine. They make hypotheses about each substance and...
Curated OER
Mystery Powder Lab
For this mystery powder worksheet, students determine the identify of 6 unknown samples by testing them with cabbage juice for pH, vinegar, iodine for starch and heat. Students determine the identity of the mystery powders using their...
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...
It's About Time
Chemical Names and Formulas
Abracadabra! Provide your class with the tools to perform a chemical "magic show" as they predict the charges of various ions, determine ionic compound formulas, and make observations to determine when a chemical reaction between two...
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
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
Confectionary Bureau of Investigations: Case of the Cookie Mystery
Students perform tests on different chemicals to determine their chemical properties. In this forensic science lesson, students identify an unknown sample using its physical and chemical properties. They solve a fictional crime using...
Curated OER
Identifying Food Nutrients
Students 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 instructional activity.
Curated OER
Identifying Organic Compounds
In this organic compound lab activity, students complete 5 pre-lab questions before testing a variety of common foods to determine which organic compound is present. Once data collection is complete and recoded, they answer 9 analysis...
Curated OER
Apple Science
Sixth graders experiment with different ways to test an apple for ripeness. In this apple harvesting lesson, 6th graders conduct three different experiments to test apples for ripeness and carry-out four additional activities involving...
Curated OER
Enzymes
Tenth graders test their saliva for enzyme activity. In this enzyme lesson, 10th graders conduct an experiment to test the enzymatic activity of their saliva. They relate the lack of certain digestive enzymes with alcoholism.
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
Secret Message
Students use the characteristic of a chemical reaction to write a secret letter. In this chemical reaction lesson plan, students will use common house hold products including iodine, lemon, and notebook paper to produce a chemical...
Curated OER
Lighthouse Diamond Thief Web Quest Worksheet
In this chemical properties worksheet, students perform 4 chemical tests on 6 different household powders recording their observations for each test. Then they complete 2 short answer questions.
Curated OER
A Very Simple Conductivity Meter
Learners conduct a simple conductivity meter to test the ionic or non-ionic nature of water samples including one from their home.
Virginia Department of Education
Macromolecules
Finally, a chance for the class to play with their food! Allow pupils to simulate stomach acid with common foods, and introduce specific macromolecules into the mixture to explore characteristics of carbohydrates, lipids, and proteins....