CK-12 Foundation
Ck 12: Laboratories
[Free Registration/Login may be required to access all resource tools.] Students learn about science laboratories, the types of equipment that are used in them, and about safety guidelines in a laboratory.
National High Magnetic Field Laboratory
Magnet Academy: Mass Spectrometry: How to Weigh an Atom
It's hard enough to weigh something as itty bitty as atoms or molecules. Factor in that they're careening by faster than Jeff Gordon on steroids, and you get an idea what scientists are up against. Using comet particles from NASA's...
Physics Aviary
Physics Aviary: Timing Challenge
Students must show that they can successfully time an event using a hand held stopwatch.
Science Struck
Science Struck: What Is a Buchner Funnel? Setup, Structure, and Uses
Learn what a Buchner funnel is, how it works to filter solids from liquids, and some of its applications.
National High Magnetic Field Laboratory
Magnet Academy: Mass Spectra
The mass spectrum of a material, deduced using a machine called a mass spectrometer, reveals how many isotopes of a given element are to be found in the material. See here what these spectra look like and how they are useful. (Java...
University of California
University of California Berkeley: Charging an Electroscope by Induction
From the U.C. Berkeley Physics Lecture Demonstrations website. A thorough description of an activity in which a charged metal plate is used to charge an electroscope by induction. Complete directions and a diagram of the equipment and...
TeachEngineering
Teach Engineering: Simple Coulter Counter
Students build and use a very basic Coulter electric sensing zone particle counter to count an unknown number of particles in a sample of "paint" to determine if enough particles per ml of paint exist to meet a quality standard. In a lab...
National Health Museum
Access Excellence: Wolf Pack in a Bottle: Dna Simulation
This lesson plan can be used to illustrate the principle of electrophoresis without the equipment. Paper chromatography can be used to separate dye just like electrophoresis will separate DNA. The lab also covers DNA analysis for an...