Curated OER
Digestion Experiment
For this digestion experiment worksheet, students follow the procedures to set up an experiment about stomach digestion using pH paper to test for acidity.
Curated OER
Acrobatic Clown
In this science investigation worksheet, students learn about balancing points and center of gravity by making a cardboard acrobatic clown using the directions and pattern provided.
Curated OER
Wind
In this wind worksheet, students will investigate how wind speed affects erosion. After conducting the experiment using a hair dryer, rocks, and sand, students will complete 4 short answer questions.
Curated OER
2003 U.S. National Chemistry Olympiad Part III
In this chemistry Olympiad activity, 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.
Chymist
Ink Analysis: An Experiment in Paper Chromatography
Test differences in writing instruments with this hands-on activity to demonstrate paper chromatography in action. The class performs an experiment on multiple writing instruments and determines the area of separation to discover an...
Curated OER
Ink Analysis
High school chemistry class members become "detectives for a day" and use the concept of paper chromatography to analyze a note left at the scene of a crime. Pupils test the ink on the note with a solvent, such as isopropyl alcohol, to...
Curated OER
Lab Activity: Model of the Planets
This worksheet leads the class through the calculations needed to construct circles to represent the planets of our Solar System. The actual values are provided, as are suggested calculations to create the scale diameters. The ten...
Beyond Benign
Catalysts and Oxygen
Here is an engaging and hands-on lesson plan that allows high school chemists to demonstrate the effects of a catalyst on various chemicals. They garner knowledge of how reactants and products differ from one another, while...
Chymist
The Extraction and Identification of Artificial Food Colors
Did you know some food dyes are considered safe while others are considered carcinogenic? During the experiment, young chemists extract artificial food colors from prepared foods. Then, they use chromatography paper to identify...
Beyond Benign
Product Test
It's the moment of truth. Previous lessons in the 24-part series had scholars design and develop shampoo formulas using chemical concepts. The 18th lesson asks them to test the function of their shampoos. To do this, they calculate the...
Royal Society of Chemistry
Electrochromic Polymer—Chemistry Outreach
From windows that tint themselves to OLED technology, electrochromic polymers are redefining our ideas about conducting materials! Introduce your chemistry class to the emerging trend with an exciting lab activity. Budding materials...
National Nanotechnology Infrastructure Network
Lines on Paper - Laser Box
See what you cannot see by getting a little creative. An intriguing lesson has learners use lasers to explore X-ray diffraction. Given a box with unknown structures, they shine a laser through the box and interpret the results....
Curated OER
What Are You Eating?
Discover the calorie content of foods by observing how much heat they produce in water. If you have a calculator-based laboratory (CBL™) insturment for collecting data, then this laboratory worksheet will not need any changes. If...
Curated OER
The Three Phases of Matter
To study the phases of matter, students complete an experiment including water and corn starch and answer six short answer questions about the states of matter the observed.
Curated OER
Cloning a Living Organism
It's the attack of the clones! Not to worry; these are just plant clones. Teen horticulturalists will enjoy growing their own clone into a plant in an activity designed to be revisited after a few weeks. It is one experiment that kids...
Nuffield Foundation
Dissecting Lungs
Here is a lab activity where teens experience the respiratory system first-hand as they dissect lungs and identify key structures within the system. Although the website is written in British English with some slightly different verbiage...
Teach Engineering
Dress for Success
Dressing for success is not always about looking sharp. Sometimes it is about staying warm and dry. Present your class with an activity that challenges groups of pupils to design a layered material for blizzard conditions. The teams test...
Curated OER
Rate of Solution Lab
For this rate of solution worksheet, 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 experiments...
Curated OER
PV=nRT=Bang!
In this ideal gas law learning exercise, students watch a demonstration using liquid nitrogen, a plastic 2 liter bottle and a garbage can of water that excites students to use the ideal gas law to solve problems. Students analyze the...
Curated OER
Challenges of Sampling
In this sampling worksheet, students try different sampling methods to determine which is the best for determining contamination on a substance. This worksheet has 5 short answer questions.
Curated OER
Relationships and Biodiversity Lab
In this relationships and biodiversity learning exercise, students 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 learning exercise, 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...
Curated OER
Ionic vs. Covalent Compounds Lab
In this ionic and covalent compound learning exercise, learners 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
Types of Chemical Reactions Lab
In this chemical reactions activity, students experiment with several different reactions and identify each as a single replacement, double replacement, synthesis, decomposition or combustion reaction. Students observe the changes in...