Curated OER
CELL TRANSFORMATION IN TOBACCO LEAF DISKS
Young scholars work with whole plant material and are not required to measure small quantities, yet they can see evidence of transformed plant cells (plant cells that have genes from bacterial plasmids). This is a laboratory suitable for...
Curated OER
The Chemistry of Refining Crude Oil
Consider our energy sources: wood, coal, oil, uranium. Learners compare the pollution to energy produced for each. They practice fractional distillation of an alcohol/water mixture to simulate the process of refining crude oil....
Curated OER
Bacteria Lab II: Effect of Bacteriocides
Written to follow "Bacteria Lab I: Preparing Agar Plates and Culturing Bacteria," also found via the Lesson Planet site, this lab sheet instructs your microbiologists to test a bacteriocide for effectiveness. In the preceding lab, they...
Curated OER
Chemistry Review
In this chemistry review worksheet, students identify chemical changes, isotopes, ions, and chemical bonds. This worksheet has 32 multiple choice questions.
Curated OER
Flame Tests
Students perform flame tests on 12 elements. In this flame tests lesson plan, students experiment with elements to observe their visible light spectra emitted as electrons jump from one energy level to another. Students record their...
Pingry School
Flame Tests
Light a fire in your pupils! Scholars conduct a flame test and observe the emission spectra of several different salts in an enlightening hands-on investigation. They use their observations to make comparisons and conclusions about the...
Curated OER
WS 1.0 Math Skills Update
In this math skills worksheet, students solve a variety of basic math problems such as solving for "x" in different types of equations, manipulating algebraic expressions, converting from ordinary notation to scientific notation and...
Curated OER
Oxidation of Ethanol to Ethanal
Here is a laboratory exercise where chemistry masters carry out an oxidation reaction to change ethanol into ethanal. They compare the original alcohol to the resulting aldehyde by forming a precipitate. Definitely aimed at learners...
NEED Project
Calibrating Thermometers
Engage young scientists in the upper-elementary and middle school grades with this collection of simple experiments. Whether you're teaching about heat transfer, density, or potential energy this resource has a lab for you.
American Chemical Society
Moving Molecules in a Solid
Who likes magic shows? In the fourth of five lessons, pupils view a scientific magic trick. The ball fits through the ring easily, but then moments later, it won't pass through anymore. What changed? Can we reverse the change? Scholars...
National Nanotechnology Infrastructure Network
Creating and Testing Silver-Nanoparticle Socks
Antibacterial socks are a product of nanotechnology. An inquiry-based instructional activity asks collaborative groups to create their own antibacterial socks and then test them against other products on the market. The sock with the...
Nuffield Foundation
Investigating Anti-Microbial Action
Join the fight against bacteria. An open investigation shows pupils different aspects of antimicrobial substances, such as disinfectants, deodorants, or plant oils. They design and conduct their own experiments on the effectiveness of...
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
Bacteria Lab I: Preparing Agar Plates and Culturing Bacteria
Bacteriologists prepare their own agar plates and culture bacteria on them. The procedures for both tasks are delineated, and questions are posed, but no materials list is printed. Also, the exact amounts of water and nutrient agar are...
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...
Curated OER
Protein Coagulation or Denaturation
In this proteins worksheet, students compare the coagulation of egg whites and milk proteins and then complete 5 short answer questions. A protein coagulation quiz is also included with 5 multiple choice questions.
Curated OER
Periodic Properties Lab
High schoolers investigate the periodic properties of elements in the periodic table. In this periodic properties lesson plan, students experiment with elements from the Alkaline Earth Metals, the Halogens, the Transition Metals, and for...
Curated OER
The Determination of the Presence of Reducing Sugars Using Fehling's Solution
Students investigate different fruits and vegetables for the presence of sugars. In this sugars and Fehling's solution activity, students test the juice from an onion and a lemon for the presence of sugar by adding Fehling's solution and...
Curated OER
Finding the Formula of Magnesium Oxide
In this formula for magnesium oxide learning exercise, students perform an oxidation reaction between magnesium and the oxygen in the air to produce magnesium oxide. Using the known masses of the magnesium and the end product, students...
Curated OER
Preparation of Triiodomethane (iodoform)
For this preparation of triiodomethane worksheet, high schoolers use propanone to prepare triiodomethane. Students use filtration and recrystallization in order to make the product. They determine the melting point using a melting point...
Curated OER
Thermal Decomposition of Calcium Carbonate
In this thermal decomposition of calcium carbonate worksheet, high schoolers perform three experiments on calcium carbonate, make observations and write the equations for each reaction. Students explain in detail what happened at each...
Curated OER
Can Cruncher
Students experiment with boiling water and cans to study changes in pressure. In this pressure lesson plan, students use pop cans filled with varying amounts of water heated to boiling. Students drop the cans in cold water and observe...
Curated OER
Reactions of Metals with Water, Acid and Air
In this chemical reactions worksheet, students experiment with reactions between 4 different metals with water, acid and air. Students make observations of copper, iron, zinc and magnesium with water, acid and air. They write an analysis...
Curated OER
Chemical Sleuthing
Students engage in a lesson which includes flame tests and the construction of a simple diffraction spectrograph with which to measure sodium ion emissions. They use the Bragg equation to compute the wavelength of the line spectra produced.