The purpose of this lesson is to model for students gravitational waves and how they are created. Students will build a simple "Gravitational Wave Demonstrator" using inexpensive materials (plastic wrap, plastic cups, water, food coloring, and... (View More) rubber bands, marbles). Students should have a basic understanding of waves and be familiar with Einstein's theory of general relativity. The activity can be done either as a teacher demonstration or student activity. This lesson is part of the Cosmic Times teachers guide and is intended to be used in conjunction with the 1993 Cosmic Times Poster. (View Less)

This series of curriculum support materials and classroom activities explores how our understanding of the nature of the universe has changed during the past 100 years. Students examine the process of science through the stories of the people and... (View More) the discoveries that caused our understanding to evolve from a static universe to a universe whose expansion is accelerating. The series illustrates the nature of science by tracing the process of discovery from the confirmation of Einstein's theory of gravity, to Hubble's evidence for the expanding universe, to the detection of the microwave background, and finally to the discovery of dark energy. The series includes six posters, each resembling the front page of a newspaper from a particular time in this history with articles describing the discoveries. Each poster is accompanied by an online teacher guide and 4-5 downloadable, inquiry-based lessons. Downloadable newsletter versions of the poster are available for individual student use, with three editions for different reading levels (Early Edition for 7-8 grade readers, Home Edition for 9-10 grade readers, and Late Edition for 11-12 grade readers). Lesson plans can be found by following the link from Teacher Resources to Curriculum Tools to Sortable Table of the Lessons. (View Less)

In this lesson, students simulate an experiment in which the discovery of dark energy can be made by plotting modern supernova distances on a Hubble Diagram. Data is provided in an Excel spreadsheet (see related resources). In order to complete this... (View More) activity, students should be familiar with Hubble's Law and the concepts of absolute luminosity, apparent luminosity, and Doppler shift (particularly redshift). This activity can be done using either a computer graphing program or manually with graph paper. This lesson is part of the "Cosmic Times" teacher's guide and is intended to be used in conjunction with the 2006 Cosmic Times Poster. (View Less)

In this lesson, students will investigate the Doppler Effect and discover how the same principle can be used to identify a possible tornado in storm clouds and investigate the rotation of distant galaxies. Students should be familiar with the... (View More) electromagnetic spectrum and the concept of Doppler Shift (links to background information are provided). Materials required for every group of 2-4 students include: a Slinky toy, safety glasses, meter stick, and colored pencils. This lesson is part of the Cosmic Times teachers guide and is intended to be used in conjunction with the 1965 Cosmic Times Poster. (View Less)

This book offers an introduction to the electromagnetic spectrum using examples of data from a variety of NASA missions and satellite technologies. The 84 problem sets included allow students to explore the concepts of waves, wavelength, frequency,... (View More) and speed; the Doppler Shift; light; and the energy carried by photons in various bands of the spectrum. Extensive background information is provided which describes the nature of electromagnetic radiation. (View Less)

In this lesson, students will explore the density of substances as a model for understanding the mass to light ratio as a predictor of dark matter. They will measure and calculate mass and volume to calculate the density of a foam ball. Students... (View More) will try to explain a discrepant event when data is not as expected (in this case a nerf ball that seems too heavy for its volume). Students will then use the concept of density, a ratio of mass to volume, to attempt to explain the mass to light ratio for luminosity and gravity. Advance preparation required. Materials needed for this activity include: small foam balls, tape measure, triple beam balance for each group, posterboards/construction paper, and markers (estimated materials cost doesn't include triple beam balances). This lesson is part of the Cosmic Times teachers guide and is intended to be used in conjunction with the 1965 Cosmic Times Poster. (View Less)

In this lesson, students measure the size of several galaxies to reproduce a plot of Hubble's Law. The goal of this lesson is to give students the chance to simulate the process that led to the notion that the universe is expanding, provide insight... (View More) into how this idea was reached, and inform students about the nature of our universe. This lesson is part of the Cosmic Times teacher's guide and is intended to be used in conjunction with the 1929 Cosmic Times Poster. (View Less)

In this lesson, students will read the 1919 edition of the Cosmic Times (see related resources) and respond by raising questions to be answered with further research. They will make a model of curved space to view the motion of spheres as explained... (View More) by Albert Einstein's General Theory of Relativity. After presentations of their research to the class they will create an interview with Einstein. This activity is part of the Cosmic Times teachers guide and is intended to be used in conjunction with the 1919 Cosmic Times Poster. (View Less)

In this activity, identified on the Infrared Zoo website as Lesson 3, students explore the Cool Cosmos Infrared Zoo database and investigate the differences between warm and cold-blooded animals. As a result, students discover how infrared imagery... (View More) provides biologists/zoologists detailed information on how warm-blooded and cold-blooded animals thermoregulate. This lesson features background information for the teacher, background information for students, a mini-exploration of Infrared Image Technology, image sets, assessment information, student worksheets, extension and transfer activities, and additional resources. (View Less)

In this lesson, learners will discover how certain snakes (pit-vipers) can find prey using a natural infrared sensor and will extend their understandings by exploring infrared technology applications. The lesson features background information for... (View More) the teacher, pre-requisite skills and knowledge for the student, a mini-exploration of infrared image technology, multiple image sets, assessment information, student worksheets, extension and transfer activities, and additional resources. This is lesson 2 on the Infrared Zoo website. (View Less)