DIY PE Diagram 1 - Exothermic and Endothermic Reactions - Interactive graph
- This interactive PE graph explores how the potential energy of the reactants and the products determine whether the reaction will be endothermic or exothermic.
HS-PS1-4: Develop a model to illustrate that the release or absorption of energy from a chemical reaction system depends upon the changes in total bond energy.
DIY PE Diagram 2 - Activation energy and Catalyst action
- This interactive PE graph explores the heat change and the activation energy for a chemical reaction. It also explore the effect of catalyst on the activation energy.
HS-PS1-4. Develop a model to illustrate that the release or absorption of energy from a chemical reaction system depends upon the changes in total bond energy.
DIY Seismic Waves - Refraction of a seismic ray
- This interactive lets you observe the extent of refraction of a seismic ray (how much it curves) as it travels through the Earth interior, based on the initial incident angle specified by you.
HS-PS4-1: Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media.
MS-PS4-2: Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.
DIY Volumetric Thermal Expansion 1
- This interactive, consisting of two trials, lets you compare volumetric expansion undergone by two metal cubes of selected size and material.
HS-PS3-1: Create a computational model to calculate the change in the energy of one component in a system when the change in energy of the other component(s) and energy flows in and out of the system are known.
MS-PS1-4: Develop a model that predicts and describes changes in particle motion, temperature, and state of a pure substance when thermal energy is added or removed.
MS-PS3-4: Plan an investigation to determine the relationships among the energy transferred, the type of matter, the mass, and the change in the average kinetic energy of the particles as measured by the temperature of the sample.
DIY Linear Thermal Expansion 1
- This interactive lets you compare the linear expansion undergone by two metal rods of selected size and material.
HS-PS3-1: Create a computational model to calculate the change in the energy of one component in a system when the change in energy of the other component(s) and energy flows in and out of the system are known.
MS-PS1-4: Develop a model that predicts and describes changes in particle motion, temperature, and state of a pure substance when thermal energy is added or removed.
MS-PS3-4: Plan an investigation to determine the relationships among the energy transferred, the type of matter, the mass, and the change in the average kinetic energy of the particles as measured by the temperature of the sample.
Osmosis - Effect of concentration difference
- The interactive compares osmosis between different concentrations of solution A and B, across three trials. To observe the movement of water from left to right, a small amount of pink colored dye is injected into the solution A, on the left side.
MS-LS1-2: Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.
HS-LS1-3: Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.
DIY Capacitance 2 - Charging a capacitor in an RC circuit
- This interactive investigates the effect of supply voltage and capacitance on the charging of a capacitor in a RC (resistor-capacitor) circuit. The activity allows you to compare the charging of a capacitor for different set of input values, namely - battery supply voltage, resistance and capacitance.
HS-PS3-2: Develop and use models to illustrate that energy at the macroscopic scale can be accounted for as a combination of energy associated with the motions of particles (objects) and energy associated with the relative position of particles (objects).
HS-PS3-5: Develop and use a model of two objects interacting through electric or magnetic fields to illustrate the forces between objects and the changes in energy of the objects due to the interaction.
MS-PS2-5: Conduct an investigation and evaluate the experimental design to provide evidence that fields exist between objects exerting forces on each other even though the objects are not in contact.
Capacitance - Electrical Potential Energy - 1
- This interactive compares the effect of supply voltage and capacitance on the charging and discharging of a capacitor.
HS-PS3-2: Develop and use models to illustrate that energy at the macroscopic scale can be accounted for as a combination of energy associated with the motions of particles (objects) and energy associated with the relative position of particles (objects).
HS-PS3-5: Develop and use a model of two objects interacting through electric or magnetic fields to illustrate the forces between objects and the changes in energy of the objects due to the interaction.
MS-PS2-5: Conduct an investigation and evaluate the experimental design to provide evidence that fields exist between objects exerting forces on each other even though the objects are not in contact.