## You are here

Home ›Now showing results **41-50** of **64**

In this lesson, students will be introduced to how the Doppler effect changes our perception of wavelengths of sound (pitch) and light (color). Students will model how astronomers use the line spectra of stars to identify elements in the stars and... (View More) the speeds of galaxies in the universe. Requires some special equipment for spectral analysis and a darkened room for viewing spectra. Suggestions are included for introducing the Doppler Effect for students unfamiliar with this concept. This activity is part of the Cosmic Times teachers guide and is intended to be used in conjunction with the 1929 Cosmic Times Poster. (View Less)

In this lesson, students consider observations and inferences to determine the support for each of two theories on the origin of the universe: Steady State and Big Bang. Working with partners, students draw from a set of Evidence cards (master is... (View More) provided, which needs to be copied and cut into cards) and decide if the statement describes direct evidence as an observation/experiment or if it describes an inference or interpretation. They then look at two models describing the origin of the universe, and then assign Evidence cards to each theory (with blank cards provided for evidence they believe applies to both models). Students then review each others work and discuss. This lesson is part of the Cosmic Times teachers guide and is intended to be used in conjunction with the 1955 Cosmic Times Poster. (View Less)

In this lesson, students explore the cosmic microwave background to understand why it permeates the universe and why it peaks as microwave radiation. Students should be able to explain that the origin of the background radiation is the uniform... (View More) thermal radiation of the big bang and that the radiation produced was evenly distributed around the small early universe, causing it to permeate today's universe. This activity 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 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)

In this lesson, students examine the idea of inflation in the Universe using rising raisin bread dough as a model for universal expansion. Students will read the Cosmic Times 1993 edition and use two articles: Pancake or Oatmeal Universe - What's... (View More) for Breakfast and Inflation in the Universe to help them make observations. The students will observe a bowl of oatmeal to explain the lumpiness and smoothness of the universe. Then the students will use raisin bread to describe how the universe went through a period of inflation to expand into its current form today. This lesson is part of the Cosmic Times teacher guide and is intended to be used in conjunction with the 1993 Cosmic Times Poster. (View Less)

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)

In this lesson, students explore a discrepent event by designing experiments to test either what makes a "come-back can" return (a can that when you roll away from you, always returns) or UV beads change color. This activity should come either near... (View More) the beginning or end of a unit on stars and galaxies. This lesson is part of the Cosmic Times teachers guide and is intended to be used in conjunction with the 2006 Cosmic Times Poster. (View Less)

One particular type of domino game, sometimes called the All Fives Domino game, uses multiples of five in order to score points. It can be the basis for a number of games designed to develop conceptual understanding of multiples of numbers through... (View More) twelve and provide opportunities to reinforce learning objectives in a fun and competitive manner. This resource is from PUMAS - Practical Uses of Math and Science - a collection of brief examples created by scientists and engineers showing how math and science topics taught in K-12 classes have real world applications. (View Less)

This is a lesson about the categorization of the three domains of life on Earth and how they relate to the study of astrobiology. Learners will explore, compare, discuss, and explain the basic differences between organisms assigned to the... (View More) eukaryotic, bacterial, and archaeal domains. Topics in astrobiology are explored through projects, vocabulary reinforcement, and drawing assignments. Includes teacher notes, learning objectives, and assessment of prior knowledge and preconceptions. This is Lesson 1 in Exploring Deep-Subsurface Life. Earth Analogues for Possible Life on Mars: Lessons and Activities. (View Less)

This article describes an approach designed to decrease math anxiety and teach students about the use of mathematical symbols simplifying radicals. A deck of cards is used in a demonstration, and a problem set using real life examples to master the... (View More) use of radicals is included. This resource is from PUMAS - Practical Uses of Math and Science - a collection of brief examples created by scientists and engineers showing how math and science topics taught in K-12 classes have real world applications. (View Less)