How do strong and weak acids differ? Use lab tools on your computer to find out! Dip the paper or the probe into solution to measure the pH, or put in the electrodes to measure the conductivity. Then see how concentration and strength affect pH.
Online labs provide your students with the possibility to conduct scientific experiments in an online environment. Remotely-operated labs (remote labs) offer an opportunity to experiment with real equipment from remote locations. Virtual labs simulate the scientific equipment. Data sets present data from already performed lab experiments. Please use the filters on the right to find appropriate online labs for your class. Labs can be combined with dedicated Apps to create Inquiry Learning Spaces (ILSs).
If you are looking for online labs especially suitable for the curricula of Benin, Kenya or Nigeria, please visit our Collections page.
Build an atom out of protons, neutrons, and electrons, and see how the element, charge, and mass change. Then play a game to test your ideas!
Bond (from bonding in chemistry) helps students learn about solubility and precipitation of salts. Bond contains a database with thousands of salts and the most common ions, with information about solubility and colours. The setup is similar to what students would do in a real chemistry lab.
The Radioactivity Lab examines the intensity of radiation over distance, demonstrating the effects of the inverse square law.
Watch a string vibrate in slow motion. Wiggle the end of the string and make waves, or adjust the frequency and amplitude of an oscillator. Adjust the damping and tension. The end can be fixed, loose, or open.Primary aims of the lab:
Explore what happens at the molecular level during a phase change. The three common physical states of matter (also called phases) are solid, liquid and gas. Matter can change phase with the addition or subtraction of heat. Molecules are always in motion.
Why does a balloon stick to your sweater? Rub a balloon on a sweater, then let go of the balloon and it flies over and sticks to the sweater. View the charges in the sweater, balloons, and the wall.
Atomic orbitals are mathematical functions that describe the properties of electrons in atoms.Using this lab, you will learn how to build atomic orbitals according to the general principals involved and you will also be able to visualize their shapes.
A computer interactive developed for the Microcosm exhibition at CERN introducing the workings of a particle accelerator like the Large Hadron Collider. Users of the interactive discover how, for example, protons are accelerated using electromagnetic fields.
The Faulkes Telescope Project provides access free-of-charge via the internet to robotic telescopes and a fully supported education programme to encourage teachers and students to engage in research-based science education.
Make a whole rainbow by mixing red, green, and blue light. Change the wavelength of a monochromatic beam or filter white light. View the light as a solid beam, or see the individual photons.Aims of the lab:
From the theory is known that the energy which is radiated outward radically in three-dimensional space from a source is inversely proportional with the square of the distance from the source. This process is known as the Inverse square law.
CERNland contains games on all topics related to the CERN activity. It is the virtual theme park developed to bring the excitement of CERN's research to a young audience aged between 7 and 12.
HYPATIA is an event analysis tool for data collected by the ATLAS experiment of the LHC at CERN.
The NAAP Hydrogen Energy Levels Lab introduces the concept of how quantum mechanics and light relate with respect to the Hydrogen atom. The Energy Levels simulator allows dynamic interaction with a Bohr model version of a single Hydrogen atom.
Do you ever wonder how a greenhouse gas affects the climate, or why the ozone layer is important? Use the sim to explore how light interacts with molecules in our atmosphere.
This lab will help you learn how to build inorganic molecules. You will also be able to investigate the nature of the bonds between the atoms and how are electrons placed.
Investigate the relationship between the volume of a gas and the pressure it exerts on its container. This relationship is commonly known as Boyle's Law. The pressure of a gas tends to decrease as the volume of the gas increases.
Primary aims of the Lab:
Explore pressure at the atomic level. All matter is made up of atoms, which make up molecules. These atoms and molecules are always in motion. When atoms and molecules are contained, we can measure the amount of pressure they exert on the container.
Explore bending of light between two media with different indices of refraction. See how changing from air to water to glass changes the bending angle. Play with prisms of different shapes and make rainbows.
The light energy reaches the solar cell and is converted into electricity by the photovoltaic effect.The solar cell converts light energy into electricity. The amount of energy is directly related to the intensity of light that strikes the cell.
Explore the relationship between the temperature of a gas and its volume. This is commonly known as Charles's Law. The volume of a gas tends to increase as the temperature increases.
Primary aims of the Lab:
1) To learn about Charles's Law
This applet simulates von Lenard's and Millikan's experiments which provided the experimental understanding of the photoelectric effect and eventual acceptance (albeit reluctant) of Einstein's quantum hypothesis.
Climate is regulated by the delicate balance of incoming and outgoing electromagnetic radiation. This applet first explores the climatic condition of various planets, focusing on Mars, Venus, and Earth.
This lab presents the spectrum of eletormagnetic radiation in terms of wavelength and frequency.
MINERVA is to give students a better understanding of how particle detectors work and the physics that they study. Currently, in MINERVA, students are able to study W and Z boson events by observing their decay products and apply this knowledge to search for the Higgs boson.
An interactive whiteboard activity where students build an atom by dragging electrons, neutrons and protons onto the template. The element information box shows if they are correct. The animation can also be used to show how ions form.
The NAAP Blackbody Curves & UBV Filters Lab demonstrates the basic properties of the blackbody curve and how temperature relates to blackbody curves.
Explore the relationship between the temperature of a gas and the pressure it exerts on its container. This is commonly known as Gay-Lussac's Law or Amontons' Law of Pressure-Temperature. As the temperature of a gas increases, the pressure it exerts on its container will increase.
This applet simulates the operation of a cloud or bubble chamber. The user can select a number of decay modes, adjust the magnetic field to match the mode and measure radii or tracks in the chamber. A built in calculator assists the user in measuring particle energy.
While all molecules are attracted to each other, some attractions are stronger than others. Non-polar molecules are attracted through a London dispersion attraction; polar molecules are attracted through both the London dispersion force and the stronger dipole-dipole attraction.
The Stereo Molecule Viewer Project, Molecules are drawn in a 3d environment, can be projected in 3d using a geowall. The applet can also rotate, zoom, translate, and measure many parts of the molecule.
The computed tomography (CT) is a technique, by which two-dimensional images of a body without perturbing superposition of the structures of the body can be produced.
This virtual lab serves as a bridge from classical mechanics to the inherently probabilistic nature of quantum theory. It allows students to analyze a classical system, here a block oscillating on a spring, in a probabilistic way.
Explore different types of attractions between molecules. While all molecules are attracted to each other, some attractions are stronger than others.
This virtual lab allows students to put multiple quantum particles into the same trap to build the ground state, first excited state, etc. of the system. The particles are all identical. The student can change the number of particles and their type (fermions or bosons).
This virtual lab allows students to explore the behaviour of single photons, single photon interference and quantum measurement. It allows students to set up different experiments using beamsplitters, phase shifters and mirrors, and to send single photons through the experiment.
This virtual lab leads the users to their first step into the quantum world of large molecules! They can conduct their own research at a modern experimental setup. It consists of two parts: the learning path and the laboratory. The learning path shows the user the relevant physics concepts.
See the changing trends of temperature, carbon dioxide, methane and nitrous oxide over hundreds of thousands of years as recorded from careful studies of ice core samples.
How did Rutherford figure out the structure of the atom without being able to see it? Simulate the famous experiment in which he disproved the Plum Pudding model of the atom by observing alpha particles bouncing off atoms and determining that they must have a small core.
Explore what happens when a force is exerted on a ceramic material. There are many different types of materials. Each material has a particular molecular structure, which is responsible for the material's mechanical properties.
The photoelectric effect is playing a major role in the development of quantum physics. Here one can investigate the energy of electrons which are released by irradiating light on metals. These observations are leading to the particle model of light (light as a photon).
The determination of the speed of light is always a challenge for accurate measurements, since Gallileo four hundred years ago supposed that light is travelling with a finite velocity.
This mini lab was designed to allow students to discover the relationships that create Coulomb's Law.
The behaviour of CFCs is dependent on both the wavelength of radiation as well as position of the molecule in the atmosphere. In this visualization the user can investigate the various interaction modes of a CFC molecule with electromagnetic radiation across the entire spectrum.
13C NMR spectroscopy is a powerful tool to help determine the structure of molecules in organic chemistry, by mapping the framework of C atoms in a molecule.
Diffraction of light (i.e. the deviation of the linear propagation) and interference (i.e. the coherent superposition of light waves results in intensity maxima and minima) represent central phenomena of wave optics. Moreover, both phenomena are playing an essential role in techniques (e.g.
If scattering objects are irradiated diffraction pattern are produced, which are colorful and asthetic. These patterns appear learners very complex, because of many reasons.
The Mach Zehnder interferometer is a device to determine the variations between two collimated beams derived by splitting light frome a single source. This experiment is a simplified version in order to understand the behavior of the photon. It contains 1 mirror and 2 captors.
This lab is designed to help students discover the connections between the linear density of a string and the tension in the string with the speed of the wave along the string. The program can be set with six identical strings or six different linear density strings.
This mini lab was designed to visually illustrate the relationships between the force of electrostatics and the factors that determine its strength.
Greenhouse gases produce spectral features in the infrared portion of the spectrum. One area of concern is the rapidly closing "IR window" -a phenomenon which occurs because different greenhouse gases absorb in different parts of the IR window.
The Mach Zehnder interferometer is a device to determine the variations between two collimated beams derived by splitting light frome a single source. This experiment is a simplified version in order to understand the behavior of the photon. It contains 1 captor.
The Mach Zehnder interferometer is a device to determine the variations between two collimated beams derived by splitting light frome a single source. This experiment is a simplified version in order to understand the behavior of the photon.
The NAAP Blackbody Curves & UBV Filters Lab demonstrates the basic properties of the blackbody curve and how temperature relates to blackbody curves. The temperature-color correlation of blackbody curves is explored through the concept of filters, which are also introduced in this module.
A ray of light coming from the top left strikes the boundary surface of two media. (It is possible to choose the substances in both lists.) The medium which has the bigger index of refraction is painted blue, the other yellow. You can vary the incident ray with pressed mouse button.
The Mach Zehnder interferometer is a device to determine the variations between two collimated beams derived by splitting light frome a single source. This experiment is a simplified version in order to understand the behavior of the photon. It contains 2 captor and 4 mirrors.
The Mach Zehnder interferometer is a device to determine the variations between two collimated beams derived by splitting light frome a single source. This experiment is a simplified version in order to understand the behavior of the photon. It contains 4 captor and 3 mirrors.
The aim of this experiment, which is important as an introduction to quantum physics, is to understand the wave properties of the electron postulated by de Broglie as well as to model solid-state crystal structures microscopically.
This lab is designed to have students investigate the changes to wavelength and frequency that occur when the source of the waves is in motion.
This lab is designed to allow students to look at the factors affecting the angle at which constructive interference occurs for waves passing through a two slit diffraction grating.
Many organic molecules exhibit characteristic vibrational modes that produce spectral features in the infrared region. These provide the experimental basis for identifying functional groups.
By this Millikan experiment one can show, that any electric charge is quantized, consisting of an integer multiple of an elementary charge e. The value of the elementary charge can be determined quantitatively.
This lab is designed to help students visualize distance between two synchronized sources that will lead to constructive and destructive interference.
This HTML5 app demonstrates the harmonics of the air in a tube as an example of standing longitudinal waves. It illustrates the movement of the molecules in the air during such an oscillation.
This app shows the interference of two circular respectively spherical waves (e.g. of water or sound waves). The waves spread out from two sources oscillating with the same phase.
This lab was designed to allow students to look at the maximum speed an object can obtain when it is electrically repelled by a like charge.
This simulation visualizes radiation of black body. Changing the temperature students can see different wavelength graphs.
This lab was designed to allow students to look at the closest distance that you can get between two particles when one of the particles is fired at the other from a certain distance at a certain speed.