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.

Rating: 3.6 - 5 votes

In the Electrical Circuit Lab students can create their own electrical circuits and do measurements on it. In the circuits the students can use resistors, light bulbs, switches, capacitors and coils. The circuits can be powered by a AC/DC power supply or batteries.

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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.

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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!

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How do you know if a chemical equation is balanced? What can you change to balance an equation? Play a game to test your ideas! Primary aims of the lab:

Rating: 1.4 - 3 votes

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.

Rating: 2 - 1 votes

Explore the forces at work when pulling against a cart,and pushing a refrigerator, crate, or person. Create an applied force and see how it makes objects move. Change friction and see how it affects the motion of objects.Aims of the lab:

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There is an updated version of this lab. This simulation demonstrates the influence of temperature, light intensity, and CO2 on photosynthesis.

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Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Visualize the relative number of hydroxide ions and hydronium ions in solution. Switch between logarithmic and linear scales.

Rating: 5 - 1 votes

Why do objects like wood float in water? Does it depend on size? Create a custom object to explore the effects of mass and volume on density. Can you discover the relationship? Use the scale to measure the mass of an object, then hold the object under water to measure its volume.

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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.

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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.

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Our objective is to study the variation of cell potential of Zn│Zn2+ ││Cu2+│Cu cell with change in the concentration of electrolytes (CuSO4 and ZnSO4) at room temperature. Students understand the terms, electrochemical cell, electrolytic cell, Daniell cell, salt bridge, EMF.

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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.

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Create your own sandwich and then see how many sandwiches you can make with different amounts of ingredients. Do the same with chemical reactions. See how many products you can make with different amounts of reactants. The primary aims of the lab are:

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Methyl orange is an orange, azoic dye and is used as pH-indicator, with a transition range from 3.1 to 4.4, as well as for dyeing and printing textiles. In this remote lab students can examine the synthesis of methyl orange.

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What determines the concentration of a solution? Learn about the relationships between moles, liters, and molarity by adjusting the amount of solute and solution volume. Change solutes to compare different chemical compounds in water.

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Explore the role of pore size in the diffusion of a substance across a membrane. Diffusion is the process of a substance spreading out from its origin. Molecules diffuse through random molecular motion.

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Learn how friction causes a material to heat up and melt. Rub two objects together and they heat up. When one reaches the melting temperature, particles break free as the material melts away. Primary aims of the labDescribe a model for friction a molecular level.

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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.

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Make sparks fly with John Travoltage. Wiggle Johnnie's foot and he picks up charges from the carpet. Bring his hand close to the door knob and get rid of the excess charge.Sample Learning Goals

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Understanding the structure of the atmosphere is critical in understanding where and how global warming occurs. This visualization illustrates the major layers in the atmosphere and identifies a number of key characteristics and defining attributes of each layer. 

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Kinetic Molecular Theory describes the behaviour of tiny gas particles, which are too small to be seen even with the strongest microscope. Kinetic means "motion," so the theory is all about particles moving!

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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.

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Learn about the physics of resistance in a wire. Change its resistivity, length, and area to see how they affect the wire's resistance. The sizes of the symbols in the equation change along with the diagram of a wire. Primary aims:

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The Gas Laws bring together temperature, volume and pressure and help us to see how these factors are related.

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HYPATIA is an event analysis tool for data collected by the ATLAS experiment of the LHC at CERN.

Rating: 5 - 1 votes

Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Visualize the relative number of hydroxide ions and hydronium ions in solution. Switch between logarithmic and linear scales.

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Phase Changes are changes of state, such as the change from liquid to gas, solid to liquid, or gas to liquid. When we heat particles, why are they able to change their state?

Rating: 3 - 2 votes

Diffusion describes how particles of matter move through other liquids and gases (including air). Diffusion explains how the mass of particles and temperature are related to how quickly particles spread out over an area.

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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.

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"The thicker the glass, the darker the brew, the less the light that passes through." Make colorful concentrated and dilute solutions and explore how much light they absorb and transmit using a virtual spectrophotometer!Primary aims:

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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.

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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.

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Watch your solution change color as you mix chemicals with water. Then check molarity with the concentration meter. What are all the ways you can change the concentration of your solution?

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Light a light bulb by waving a magnet. This demonstration of Faraday's Law shows you how to reduce your power bill at the expense of your grocery bill.

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Explore molecule shapes by building molecules in 3D! Find out how a molecule's shape changes as you add atoms to a molecule.The primary aims of the lab are:1) Recognize that molecule shape is due to repulsions between atoms

Rating: 2.5 - 2 votes

With this lab you will find out how separation of mixtures is done using the following techniques:   Separating funnel Chromatography Centrifugation Simple distillation Fractional distillation

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Using the GoLab Molecule Builder you can explore the properties and nature of 20 different organic molecules.

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When is a molecule polar? Change the electronegativity of atoms in a molecule to see how it affects polarity. See how the molecule behaves in an electric field. Change the bond angle to see how shape affects polarity.Sample Learning Goals

Rating: 2 - 1 votes

How does solar radiation interact with the Earth and its atmosphere to cause global warming? Use this lab to see what’s going on at the molecular level.

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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:

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Phase Changes are changes of state, such as the change from liquid to gas, solid to liquid, or gas to liquid. When we heat particles, why are they able to change their state?

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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.

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This lab helps to identify the sequences within a DNA region that encode proteins. DNA can be read in six possible reading frames, 3 in the forward direction and 3 in the reverse direction.

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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.

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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.

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In this lab, our objective is to study the shift of equilibrium between ferric ions and thiocyanate ions by increasing the concentration of either of them. 

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Stimulate a neuron and monitor what happens. Pause, rewind, and move forward in time in order to observe the ions as they move across the neuron membrane.  

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This applet models the relationship between atmospheric CO2 and average surface ocean pH.

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Explore the interactions that cause water and oil to separate from a mixture. Oil is a non-polar molecule, while water is a polar molecule. While all molecules are attracted to each other, some attractions are stronger than others.

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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

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Despite the “bond” name, hydrogen bonds are a special type of dipole-dipole interaction.

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Most buildings have leaky places where air can enter or escape – around windows, ceiling openings like pipes, wires or chimneys, and construction joints such as where the wall meets the floor or the floor rests on the foundation.

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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.

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Explore molecule shapes by building molecules in 3D! How does molecule shape change with different numbers of bonds and electron pairs? Find out by adding single, double or triple bonds and lone pairs to the central atom. Then, compare the model to real molecules!

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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.

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Kinetic Molecular Theory describes the behavior of tiny gas particles, which are too small to be seen even with the strongest microscope. Kinetic means "motion," so the theory is all about particles moving!

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Mass spectrometers distinguish the chemical makeup of a sample by displaying the ratios of the different masses of particles within the sample. This applet is used to learn how mass spectrometry differentiates between different isotopes of an element. 

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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.

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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.

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The NAAP Atmospheric Retention Lab explores some of the elements that go into the retention or loss of an atmosphere by a planet. The Maxwell-Boltzmann velocity distribution and escape velocity are introduced.

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A capacitor with square plates of width 'a separated by a distance 'd' with a filler of dielectric constant (relative permittivity) 'k' has a capacitance given by 'C'. Typical values are in the range of picofarads (pF).

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Explore the role of temperature in the rate of diffusion of a substance. Diffusion is the process of a substance spreading out from its origin. Molecules diffuse through random molecular motion.

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This lab is an abridged Html5 version of the Flash-based Photolab. It has been optimized to work with tablet computers.

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The purpose of insulation is to maintain a temperature difference between inside and outside with the least possible heat flow and thus a smaller heating requirement. If it’s cold outside and the insulation value of a wall or window is low, the temperature near that surface will be lower, too.

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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.

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Consider the following questions based on your experience of rooms you have been in. Does a low ceiling make a room feel warmer in a poorly insulated house? Would it be hard to heat the area we use (such as sofa height) of a living room with a high “cathedral” ceiling?

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This lab is designed to have students examine the different factors that affect the rate of heat transfer through a barrier between two gases. 

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With this lab we will study osmosis using a potato osmometer

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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.

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Frequency dependent phenomena in RLC circuits are basis for both demonstration of phenomena in electricity and electromagnetism and for circuits with resonance phenomena. Usually, the voltage transfer and phase characteristics (i.e.

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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.

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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.

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Explore the role of permeable membrane in diffusion. Diffusion is the process of a substance spreading out from its origin. Molecules diffuse through random molecular motion.

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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.

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 Heat, cool and compress atoms and molecules and watch as they change between solid, liquid and gas phases.Sample learning goals:

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Explore the structure of a gas at the molecular level. Molecules are always in motion. Molecules in a gas move quickly. All molecules are attracted to each other. Molecules can be weakly or strongly attracted to each other.

Rating: 2 - 1 votes

This animation illustrates the absorption of infrared radiation by CO2 in the troposphere and the collisional loss of this absorbed energy to surrounding N2 and O2 molecules. In this animation the user can sweep through a region of the IR spectrum and excite some of the vibrational modes of CO2.

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The three common physical states of matter are solid, liquid and gas. All matter is made up of atoms, which make up molecules. Atoms and molecules can be weakly or strongly attracted to each other.

Rating: 3 - 1 votes

Explore the role of temperature in the rate of diffusion of a substance. Diffusion is the process of a substance spreading out from its origin. Molecules diffuse through random molecular motion.

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Explore different types of attractions between molecules. While all molecules are attracted to each other, some attractions are stronger than others.

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This lab allows you to perform experiments that will help you understand the properties of acids and bases.

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Investigate the difference in attractive force between polar and non-polar molecules by “pulling” apart pairs of molecules. While all molecules are attracted to each other, some attractions are stronger than others.

Rating: 1 - 1 votes

Convert between pH values and concentration of hydronium ions. An interactive graph visualizes the formulaic relationship.   

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The electrochemical sources of electric energy are important components for various appliances. Two basic parameters of any DC electromotive voltage source are important – the electromotive voltage and the internal resistance of the source.

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This lab is will allow students to vary the resistance of a light bulb and the voltage difference across a light bulb. They will be able to see how these two factors affect the current through the light bulb and the power used by the light bulb. 

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If there are air leaks in a house, you might expect that their effect would be magnified on a windy day. The wind creates greater air pressure on the windward side of the building and forces air in through the leaks.

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Explore the structure of a liquid at the molecular level. Molecules are always in motion. Molecules in a liquid move moderately. All molecules are attracted to each other. Molecules can be weakly or strongly attracted to each other.

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This lab is designed to have students investigate the changes that occur to images formed by converging lenses based on the focal length of the lens, the height of the object and the location of the object.  

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This lab was designed to have students notice the difference between static friction and sliding friction. They will change the mass of an object that is being pulled across a surface and plot out the changes to friction vs. normal.

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Explore the structure of a solid at the molecular level. Molecules are always in motion, though molecules in a solid move slowly. All molecules are attracted to each other. Molecules can be weakly or strongly attracted to each other.

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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.

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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.

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Reduction of anthropogenic carbon emission into the atmosphere is one of the present day's greatest challenges.

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Each material has a particular molecular structure, which is responsible for the material's mechanical properties. The molecular structure of each material affects how it responds to an applied force at the macroscopic level.The primary aim of the lab is:

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With this lab you will learn how to determine the ph of bases and acids.

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Explore the role of a molecule's mass with respect to its diffusion rate. Diffusion is the process of a substance spreading out from its origin. Molecules diffuse through random molecular motion.

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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.

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When J.J. Thomson first discovered that a cathode ray was actually a particle beam consisting of a stream of electrons, he concluded that these new particles were not just another type of atom. Explore and compare the behavior of electrons vs.

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Explore the role of charge in interatomic interactions. The forces attracting neutral atoms are called Van der Waals attractions, which can be weak or strong, depending on the atoms involved.