Curated OER
Parts of Lab Report Review Sheet
In this lab report worksheet, learners answer ten questions by filling in a blank with the appropriate letter that corresponds to the part of the lab. Students determine where data goes, where observations go, where answers to discussion...
Learning Games Lab
Testing and Adjusting pH
Pupils learn how to control food spoilage by adjusting the food's pH. They see that one of the most dangerous bacteria can grow in food if people don't handle and store food properly. Using knowledge of the bacteria's preferred pH,...
Learning Games Lab
Controlling Water Activity in Food
Food storage matters! Scholars learn how the amount of water in corn can affect its rate of spoilage. They create a control group, then test three corn samples stored in three different locations for water activity. As a result of the...
Curated OER
Measurement and Safety
In this measurement and safety instructional activity, students find the terms in a word search puzzle for 13 statements about the SI units of measurement, the prefixes for the units and measurements of mass, length, and volume. They...
Curated OER
2006 U.S. National Chemistry Olympiad Part III
In this chemistry Olympiad lab learning exercise, students are given two lab problems to design experiments. Topics include determining the mass percentage of a given compound and determining an unknown metal using quantitative and...
Curated OER
2002 U.S. National Chemistry Olympiad National Exam - Part III
Two laboratory problems are put forth for chemistry students. They are to plan and carry out an experiment that will answer each of the questions. The first asks them to investigate a relationship between the surface area of a potato and...
Curated OER
A Solubility Curve for Potassium Nitrate
Step-by-step laboratory instructions are listed so that chemistry explorers can consider the solubility of potassium nitrate. They combine their results with those of other lab groups and then graph the data to display the solubility...
Curated OER
More on Conduction and Convection
Why do some items feel colder when they are the same temperature? How should you keep your soda cold? What makes the wind blow? These are just some of the things middle schoolers discover when completing a lesson on conduction and...
Beyond Benign
Green"er" Precipitation Reaction
All sodium carbonate may not have the same amount of carbonate, but it should have the same percent. Learners write and balance an equation to predict the chemical reaction between sodium carbonate and zinc acetate. Through the lab...
Curated OER
Making Karyotypes
In this karyotype worksheet, students answer 5 pre-lab questions before cutting out numbered chromosomes and matching them to unnumbered chromosomes to create a karyotype.
Curated OER
Mystery Powder Lab
In this mystery powder worksheet, middle schoolers 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...
Curated OER
2003 U.S. National Chemistry Olympiad Part III
In this chemistry Olympiad worksheet, pupils are given 2 lab problems to work on. They must explain their experiment they would carry out, show their data and write their results and conclusions of the lab and the process.
Utah Education Network (UEN)
Microwave Magic
The microwave is a staple in many American households, but how exactly does it work? Approach this question from a scientific and practical standpoint, and discover cooking strategies, recipes, and methodologies for the standard microwave.
Curated OER
Glenbrook South High School Science Scoring Rubric: Student Laboratory Reports
Here is an unexpected, but practical resource. It is not a instructional activity, but rather an outline of what a science laboratory participant should include in a report. Especially valuable is a grading rubric that spells out what is...
Royal Society of Chemistry
Some Reactions of Carbon Dioxide—Microscale Chemistry
Precipitation reactions are always interesting. How about one that forms a precipitate using a gas? Chemists of any age will enjoy this twist on a standard solubility lab. Partners observe the lack of interaction between sodium hydroxide...
Royal Society of Chemistry
Green Plastics—Chemistry Outreach
How do green plastics reduce waste and environmental pollution? Budding scientists create and test a variety of compounds used in green plastics during an insightful experiment. Beginning with startling statistics and ending with...
Curated OER
Coin Lab
In this experimental design worksheet, students experiment with three coins, a dropper and water. They determine how many drops of water they can put on each coin. They answer questions about their experiment and they design an...
Curated OER
Rate of Solution Lab
In this rate of solution instructional activity, high schoolers determine how quickly a solute dissolves in a solvent by testing one independent variable such as temperature, particle size or the amount of stirring. Students design their...
Curated OER
Types of Chemical Reactions Lab
In this chemical reactions instructional activity, students experiment with several different reactions and identify each as a single replacement, double replacement, synthesis, decomposition or combustion reaction. Students observe the...
Curated OER
Relationships and Biodiversity Lab
In this relationships and biodiversity learning exercise, learners investigate the relationships between 4 plants sample using 7 different tests. These include looking at structural characteristics of the plants, seeds and stems, using...
Curated OER
Chemical and Physical Changes Lab
In this chemical and physical change worksheet, students conduct a variety of experiments with unknown solutions and make observations. Students determine if the properties of the solutions have changed and if there is a chemical or...
Curated OER
Ionic vs. Covalent Compounds Lab
In this ionic and covalent compound worksheet, students investigate the properties of three unknown substances in order to determine if they are ionic or covalent compounds. They write conclusions about their results.
Curated OER
Fiber Identification
Lab sheets for three different crime scene investigation activities are tucked into this resource. In the first activity, inquisitors examine a variety of fibers, including the fiber found at "the crime scene," under ultraviolet light....
National Renewable Energy Laboratory
Biomass: Biogas Generator
It's a gas. Middle schoolers build a biogas generator following the directions in this resource. After a few days of observation, they demonstrate that the gas given off by the decomposing manure is flammable. The activity concludes as...
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