All Tablet-friendly Resources
- 3D Exploration of Bound Antibody and Antigen
Explore the role of shape in how antibodies and antigens interact.
- African Lions: Modeling Populations
Explore exponential and logistic growth models to analyze population data for African lions and identify carrying capacity.
- Atom and Ion Builder
Create multiple versions of helium atoms and make observations of how changing protons, electrons, and neutrons affect atoms.
- Atom and Ion Builder (with table)
Create multiple versions of various atoms and record the number of protons, electrons, and neutrons in a table.
- Boiling Point
This model allows you to explore why polar and non-polar substances have very different boiling points.
- Boiling Point of Polar & Nonpolar Substances
Explore the relationships between properties of molecules, temperature, and movement of particles.
- Breaking a Molecular Bond (conceptual version)
Adjust the initial velocity of a third atom as it hits two bonded atoms and track the changes in energy during this interaction.
- Chain Reaction Between Hydrogen and Oxygen
Observe how a chemical reaction evolves over time and affects the balance of potential and kinetic energy in the system.
- Charge Intensity and Electric Force
Explore the relationship between charge, electric fields, and forces on objects by manipulating charge.
- Charge Intensity and Electric Force 2
Explore the relationship between charge, electric fields, and forces on objects by manipulating charge.
- Charged and Neutral Atoms
Explore the role of charge in interatomic interactions.
- Collisions and Kinetic Energy
Explore the energy exchange between colliding objects and observe how energy transfer occurs under various circumstances.
- Comparing Attractive Forces Between Molecules
Explore the difference in attractive forces between polar and nonpolar molecules.
- Comparing Dipole-Dipole to London Dispersion
Investigate the difference in the attractive force between polar and non-polar molecules.
- Comparing Potential Energy of a Bond
Compare the change in potential energy when you separate molecules from each versus when you break molecules apart.
- Concentrating Charge and Electric Fields
Simulate an analogy to Rutherford’s gold foil experiment to distinguish between the plum pudding and hard nucleus model of the atom.
- Conversion of Electric Potential Energy
Explore how potential energy created by particles of varying charge is converted to thermal energy.
- Deformed Electron Cloud
Explore the effect of an electric field on the electron distribution of an atom.
- Describing Velocity
Learn about velocity-time graphs and their connection to corresponding position-time graphs.
- Diffusion Across a Semipermeable Membrane
Explore the role of pore size in the diffusion of a substance across a membrane.
- Diffusion and Molecular Mass
Explore the role of a molecule's mass with respect to its diffusion rate.
- Diffusion and Temperature
Explore the role of temperature in the rate of diffusion of a substance.
- Diffusion of a Drop
Explore the random molecular motion of a dye in water.
- Direction and Strength of Force in Electric Fields
Explore the strength and direction of forces between two charged objects by observing the color and direction of the force pointers.
- Direction of Force Around a VDG (Negatively Charged)
Observe the direction of forces between a negatively charged Van de Graaff generator and a positively charged object.
- Direction of Force on Charged Objects
Drag around a stationary charged object and observe the force on the stationary object when it is positive and negative.
Observe the impact on potential energy when a substance dissolves in water.
- Dissolving Experimental
Explore how the polarity of molecules affects how they mix (or don’t) when combined.
- DNA to Protein (HTML5 Model)
Explore how the code embedded in DNA is translated into a protein. DNA transcription and mRNA translation are modeled.
- Electric Potential Energy and Charge Intensity
Set the amount and type of charge on particles and compare the potential energy of the electric field that is generated.
- Electric Potential Energy and Type of Charge
Set the charge of two particles and compare the potential energy of the electric field they generate as the particles are moved around.
- Electrostatics: Maze Game
Apply knowledge of the interactions between charged particles to guide an object through a maze.
- Elements and Polarity
Compare the surface charges on various molecules and explore which atom types tend to cause uneven sharing of electrons.
- Energy of a Pendulum
Set the initial height of a pendulum and observe how potential, kinetic, and thermal energy change during pendulum swings.
- Energy of a Spring
Set the initial position of a mass on a spring and observe how potential, kinetic, and thermal energy change when the spring is released.
- Energy of Bond Formation (conceptual version)
Explore how different elements come together to form bonds and compare changes in potential energy and forces.
- Exploring Electron Properties
Compare the behavior of charged atoms and cathode ray particles (electrons).
- Exploring Hydrophobic Core
Explore the structure of various proteins and see how the nonpolar amino acids form the core of many protein structures.
- Exploring Protein 3D Structure
Explore a protein and its components using a simplified representation to see structure; or a view of all atoms to see full details.
- Factors Affecting London Dispersion Attractions
Explore the role of size and shape in the strength of London dispersion attractions.
- Forming a Molecular Bond (conceptual version)
Explore the potential and kinetic energy as two atoms form a covalent bond.
- Forming a Molecule
Explore the balance of forces and electron distribution as two atoms are moved closer and further apart.
- Gas Pressure in a Syringe
Explore how a particle model of gases works to predict the behavior of a syringe under various conditions.
- Graphing Quadratic Equations
Students learn to graph a quadratic equation using the coordinates of the vertex of a parabola and its x-intercepts.
- How Can a Small Spark Start a Huge Explosion?
Explore connections between electric forces and molecules using simulations, and explain energy transfers using the conservation of energy.
- How Does an Object Become Charged?
Develop atomic-level causal models to explain observations of electrostatic interactions.
- Hydrogen Bonds: A Special Type of Attraction
Explore the polar molecule interactions known as hydrogen bonds.
- Intermolecular Attractions and States of Matter
Explore how states of matter are related to the strength of intermolecular attractions.
- Linear Equations: Points, Intercepts, and Slopes, Oh My!
Graph lines using the x- and y-intercepts of equations and when given an equation in point-slope form.
- Linear Equations: Ski Slope
Learn about the numeric representation of the slope of a line, including using rise and run to graph lines with a given slope.
- Making and Breaking Bonds: The Effect of Temperature
Observe the effects of temperature on chemical reactions.
- Making Molecules
Modify an existing molecule and observe how different atoms affect the electron distribution within the model.
- Metal Forces
Explore what happens when a force is exerted on a metallic material.
Observe changes in potential energy as molecules self-assemble into micelles.
- Mixing Liquids
Explore how mixing two different liquids together can result in less total volume by investigating at the molecular level.
- Modeling Transcription
Explore how an mRNA copy is made of DNA.
- Modeling Translation
Explore how a protein is made from an mRNA sequence.
- Molecular Sorting
Add various unknown molecules to oil and water, and observe how the molecules sort themselves in response to interactions with the surrounding environment.
- Molecular View of a Gas
Explore the structure of a gas at the molecular level.
- Molecular View of a Liquid
Explore the structure of a liquid at the molecular level.
- Molecular View of a Solid
Explore the structure of a solid at the molecular level.
Explore how changing the DNA sequence can change the amino acid sequence of a protein.
- Non-Bonding (conceptual version)
Compare the electron distribution, potential energy, and forces of two interacting hydrogen atoms (which can bond) with two helium atoms (which do not).
- Oil and Water
Explore the interactions that cause water and oil to separate from a mixture.
- Opposites Attract
Change the charge on spheres to positive or negative and observe how charges affect the interaction between them.
Explore the factors that affect a pendulum's motion.
- Pendulum and Spring
Explore the motion of a pendulum suspended by a spring.
- Phase Change
Explore what happens at the molecular level during a phase change.
- Polar and Nonpolar Interface
Observe how molecules with hydrophilic and hydrophobic regions move in a mixture of oil and water, and the effects on potential energy.
- Polarity and Attractive Strength
Explore the role of polarity in the strength of intermolecular attractions.
Explore how the types of atoms forming a bond affect the distribution of electrons and overall shape of the molecule.
- Protein Folding
Explore how hydrophobic and hydrophilic interactions cause proteins to fold into specific shapes.
- Protein Folding Exploring
Generate proteins with different molecular properties and observe how their folding changes the potential energy of the system.
- Quadratic Functions in Vertex Form
Learn to identify the vertex of a parabola from the vertex form of a quadratic function equation, and then graph the parabola.
- Quadratic Word Problems Part 1
Students solve two problems involving the motion of projectile objects, modeling the motion using quadratic equations.
- Quadratic Word Problems Part 2
Students solve two problems each involving the motion of projectile objects, modeling the motion using quadratic equations.
- Reaction Between Hydrogen and Oxygen Atoms
Observe a reaction between hydrogen and oxygen atoms, and watch how potential and kinetic energy change.
- Reaction Between Hydrogen and Oxygen Molecules
Carefully observe changes in kinetic and potential energy as hydrogen and oxygen molecules react.
- Seeing Intermolecular Attractions
Explore different types of attractions between molecules.
- Spring Model
Explore the factors that affect a spring's motion.
- Sticking a Balloon to a Wall
Explore the interactions between a charged balloon and a neutral wall at the atomic-level.
- Structure of an Atom
Map the probable locations of electrons around a nucleus to understand probability distributions and the electron cloud model.
- Sunlight, Infrared, CO2 and the Ground
Explore how solar radiation interacts with Earth’s surface and atmosphere.
- Target Game (Charge Magnitude / Force Relationship)
Manipulate the magnitude of charges on two objects to get a third positively charged particle to hit a target.
- Target Game (Distance/Force Relationship)
Drag the location of charges to get a positively charged particle to the target while observing forces and fields.
- Target Game (Free Play)
Manipulate the location and magnitude of charges to get a positively charged particle to hit a target.
- The Temperature-Pressure Relationship
Explore the relationship between the temperature of a gas and the pressure it exerts on its container.
- The Temperature-Volume Relationship
Explore the relationship between the temperature of a gas and its volume.
- The Volume-Pressure Relationship
Investigate the relationship between the volume of a gas and the pressure it exerts on its container.
- Understanding Probability Maps
Use a dart board simulation to understand probability distributions.
- Van de Graaff (VDG) Discharge
Explore how the charging and discharging of a Van de Graaff generator occurs and changes in potential energy.
- Was Galileo Right?
Explore the effect of gravity on objects of various mass during free fall.
- What Are All Materials Made of?
Evaluate particle nature of matter and use particle nature of matter to explain observations of liquids and gasses.
- What Are Factors that Affect the Interactions Between Objects?
Explore and use models of electric fields to explain how charged objects interact with other objects.
- What Happens to the Energy of Water Molecules During Hurricanes?
Add energy to a model of how molecules interact by exploring phase changes of water.
- What Is Happening When a Spark Occurs?
Students define potential and kinetic energy, explore energy transfer and energy conservation, and connect energy to atomic structure.
- What is Pressure?
Explore pressure at the atomic level.
- What Makes Water Special?
Develop explanations connecting observations of water with properties that water exhibits.
- Where Does All the Energy in an Explosion Come From?
Construct a model of chemical reactions involving energy and electrostatic interactions and compare reactions and changes in energy.
- Where Does the Energy of a Spark Come From?
Define potential energy and explore the relationship between potential energy and fields.
Graph a line using slope and y-intercept and identify the slope and y-intercept from a linear equation.