Light Pollution. Light Pollution Objective In this activity, students will observe that the faintest stars which they can see in the sky are affected by many things: the adaptation of their eyes to the dark, the presence of clouds or haze, the time of year, and the presence of light pollution.
General Information This activity is for students at the grade 6-12 level. It can be performed by individual students but, for safety and social reasons, it is best completed within a group. Background Information Two thousand years ago, astronomers called the brightest stars "first magnitude" and the faintest stars "sixth magnitude. " Ursa Minor (The Little Bear), including The Little Dipper asterism, is a constellation which can be seen throughout the year from the northern hemisphere. What the Students Will Do Materials List Students will need a seasonal star chart; this can be obtained from most astronomy magazines. Doing the Activity 1. 2. 3. 4. 5. Evaluation Closure 1. AstroCappella - A Musical Exploration of the Universe. AstroCappella — A Musical Exploration of the Universe Related Activity Editor's note: This activity is both on the Astrocappella web site and the CD-ROM featured in this article.
You can read the lyrics to "Doppler Shifting" and hear it performed by the Chromatics at the same site. Here It Comes, There It Goes! An activity by Kara C. Activity Summary: Every student can demonstrate the Doppler effect! Objective: Students will perform an experiment in which they will demonstrate the Doppler effect. Materials for each group of students: 'splash out' ball** electronic noise making mechanism with pure tone (from Radio Shack, or other electronics store) 9 volt battery 9 volt battery clip jump rope masking tape Procedure: 1. 2. 3. 4. 5. Discussion: This is a demonstration of a phenomenon called the Doppler effect. The number of waves reaching an observer in one second is called the frequency. Now imagine an everyday-life example such as observing and listening to an approaching car.
K-Gray Engineering Pathway Digital Library - Engineering Education Wing of the NSDL. Coaster Crafter. Toys from Trash. Sunset Lake Software. Molecules is an application for the iPhone, iPod touch, and now iPad that allows you to view three-dimensional renderings of molecules and manipulate them using your fingers.
You can rotate the molecules by moving your finger across the display, zoom in or out by using two-finger pinch gestures, or pan the molecule by moving two fingers across the screen at once. The combination of the iPhone, iPod touch, and iPad's unique multitouch input system and the built-in OpenGL ES 3-D graphics capabilities enable you to feel like you are manipulating the molecules themselves with your fingers. New molecules can be downloaded from the RCSB Protein Data Bank ( an international repository of biological molecules and their 3-D structures, or NCBI's PubChem, a public database of compounds. Molecules can be downloaded directly to your handheld device and stored there for later viewing. Custom molecule structures can also be downloaded to the device from any publicly available web server. Requirements. Do Materials Get Tired? How Long will a Paperclip Last? (HS) Paperclip fatigue lab.