Create a laser by pumping the chamber with a photon beam. Manage the energy states of the laser's atoms to control its output.
This NetLogo model of leaf photosynthesis shows the macroscopic outcome of the reaction.
Learn about concentrations of solutions. If you brew tea or coffee for too long, it gets really strong, bitter, and dark. But if you add water, you can lessen its strength. So, when we talk about how strong our coffee is, we are really talking about CONCENTRATION. Like stirring a teaspoon of sugar into a cup of tea, solids can have a concentration in a liquid, but first, they need to be able to dissolve into a solution (solubility). But, is there a limit to how much of a solid the solution can take in? Through some sweet treats, you can eat, let's explore the scientific concepts of concentration, solubility, and supersaturated solutions. I promise you it's going to ROCK! Developed for students in grades 6-10.
In this activity the temperature of a reaction is monitored for different concentrations of reactants.
Repeated motion is present everywhere in nature. Learn how to 'make waves' with your own movements using a motion detector to plot your position as a function of time, and try to duplicate wave patterns presented in the activity. Investigate the concept of distance versus time graphs and see how your own movement can be represented on a graph.
Monitor the temperature of a melting ice cube and use temperature probes to electronically plot the data on graphs. Investigate what temperature the ice is as it melts in addition to monitoring the temperature of liquid the ice is submerged in.
How do microwaves heat up your coffee? Adjust the frequency and amplitude of microwaves. Watch water molecules rotating and bouncing around. View the microwave field as a wave, a single line of vectors, or the entire field.
In this activity, students interact with 12 models to observe emergent phenomena as molecules assemble themselves. Investigate the factors that are important to self-assembly, including shape and polarity. Try to assemble a monolayer by "pushing" the molecules to the substrate (it's not easy!). Rotate complex molecules to view their structure. Finally, create your own nanostructures by selecting molecules, adding charges to them, and observing the results of self-assembly.
Created by the Concord Consortium, the Molecular Workbench is "a modeling tool for designing and conducting computational experiments across science." First-time visitors can check out one of the Featured Simulations to get started. The homepage contains a number of curriculum modules which deal with chemical bonding, semiconductors, and diffusion. Visitors can learn how to create their own simulations via the online manual, which is available here as well. The Articles area is quite helpful, as it contains full-text pieces on nanoscience education, quantum chemistry, and a primer on how transistors work. A good way to look over all of the offerings here is to click on the Showcase area. Here visitors can view the Featured simulations, or look through one of five topical sections, which include Biotech and Nanotechnology. Visitors will need to install the free Molecular Workbench software, which is available for Windows, Linux, and Mac.
This resource is the test I use at the end of the 10th grade Biology unit on molecules of life. The main topics are macromolecules, pH, and water. It consists of 40 multiple choice questions, mainly knowlege/vocabulary based.
Video Description: In this close-up video, Dr. Danny Glavin, Astrobiologist at NASA's Goddard Space Flight Center, shares his journey in becoming a 'rock star' for NASA and how communication is an essential part of his job. Video Length: 1:41NASA eClipsTM is a suite of online student-centered, standards-based resources that support instruction by increasing STEM literacy in formal and nonformal settings. These free digital and downloadable resources inform and engage students through NASA-inspired, real-world connections.NASA eClips Ask SME: Close-up with a NASA Subject Matter Expert videos are professionally developed to capture a glimpse of NASA SME's personal interests and career journeys. Each can be used to spark student interest and broaden their ideas of the STEM workforce. Additional videos in this series can be found by searching GoOpenVA using "NASA eClips Ask SME".
Video Description: In this close-up video, Marile Colon Robles, Project Scientist at NASA's Langley Research Center, shares her love for studying clouds and working with people from around the world to collect data about clouds. Video Length: 1:56.NASA eClipsTM is a suite of online student-centered, standards-based resources that support instruction by increasing STEM literacy in formal and nonformal settings. These free digital and downloadable resources inform and engage students through NASA-inspired, real-world connections.NASA eClips Ask SME: Close-up with a NASA Subject Matter Expert videos are professionally developed to capture a glimpse of NASA SME's personal interests and career journeys. Each can be used to spark student interest and broaden their ideas of the STEM workforce. Additional videos in this series can be found by searching GoOpenVA using "NASA eClips Ask SME".
Start a chain reaction, or introduce non-radioactive isotopes to prevent one. Control energy production in a nuclear reactor! (Previously part of the Nuclear Physics simulation - now there are separate Alpha Decay and Nuclear Fission sims.)
See how light knocks electrons off a metal target, and recreate the experiment that spawned the field of quantum mechanics.
This lesson is focused on the short-term cycling of carbon and is designed to put the processes of photosynthesis and respiration within a global perspective.
How does energy flow in and out of our atmosphere? Explore how solar and infrared radiation enters and exits the atmosphere with an interactive model. Control the amounts of carbon dioxide and clouds present in the model and learn how these factors can influence global temperature. Record results using snapshots of the model in the virtual lab notebook where you can annotate your observations.
Broadcast radio waves from KPhET. Wiggle the transmitter electron manually or have it oscillate automatically. Display the field as a curve or vectors. The strip chart shows the electron positions at the transmitter and at the receiver.
Learn about different types of radiometric dating, such as carbon dating. Understand how decay and half life work to enable radiometric dating to work. Play a game that tests your ability to match the percentage of the dating element that remains to the age of the object.
Explore what makes a reaction happen by colliding atoms and molecules. Design experiments with different reactions, concentrations, and temperatures. When are reactions reversible? What affects the rate of a reaction?
Measure relative humidity in the air using a simple device made of a temperature sensor, a plastic bottle, and some clay. Electronically plot the data you collect on graphs to analyze and learn from it. Experiment with different materials and different room temperatures in order to explore what affects humidity.