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In this lesson on cosmic rays, students will explain two examples of a cosmic ray detector. Includes information about student preconceptions and a demonstration that requires a geiger counter and optional access to a small radioactive source that... (View More) emits energetic helium nuclei (alpha particles), e.g., the mineral the mineral autunite, which contains uranium. This is activity two of four from The Cosmic Ray Telescope for the Effects of Radiation (CRaTER). (View Less)
This is an assessment activity for the The Cosmic Ray Telescope for the Effects of Radiation (CRaTER) educational kit. Learners will make a poster that explains possible origins of cosmic rays, how they affect people, and what protects us here on... (View More) Earth. Alternately, they will make a poster describing CRaTER’s goal and how it works. (View Less)
This is a series of three webpages about how humans and computers communicate. Learners will explore the binary and hexidecimal systems and how engineers use them to translate spacecraft data into images.
This is a game about data compression. Learners will use virtual foam balls to explore the different compression methods (lossless, lossy, and superchannel) used by the Earth Observing 3 mission.
In this lesson about cosmic rays, students will describe why cosmic rays are dangerous to astronauts. Includes information about student preconceptions. This is activity 3 of 4 from "The Cosmic Ray Telescope for the Effects of Radiation (CRaTER)."
Learners will build an open spectrograph to calculate the angle the light is transmitted through a holographic diffraction grating. After finding the desired angles, the students will design their own spectrograph using the information learned. The... (View More) activity is part of Project Spectra, a science and engineering program for middle-high school students, focusing on how light is used to explore the Solar System. (View Less)
This is a lesson about how to plan a mission to explore another world in the Solar System. Learners will discuss the path of a spacecraft traveling between planets, examining the journey from the Earth to Mars as an example. In Activity 1, students... (View More) determine the pros and cons for different ways we can explore another world, either by observing from the Earth or by sending a spacecraft to fly by, orbit, or land on the world. In Activity 2, the students plan a complete mission to explore another world in the Solar System. By the end of the lesson, the students come to understand that what scientists want to learn about an object determines how they plan the mission, but real-life constraints such as cost and time determine what actually can be accomplished. (View Less)
Learners will investigate, discuss, and determine why humans have always explored the world (and now space) around them. Students determine these reasons for exploration through a class discussion. In the first activity, students use the Internet to... (View More) examine the characteristics of past explorers and why they conducted their exploration. The students then examine why current explorers - including the students themselves - want to explore other worlds in the Solar System. By the end of the lesson, the students can conclude that no matter what or when we explore - past, present, or future - the reasons for exploration are the same; the motivation for exploration is universal. (View Less)
In this problem set, learners will become familiar with two measures of electricity: watts and kilowatt-Hours. They will calculate the electrical consumption of several household items, such as appliances, as well as its cost. Answer key is... (View More) provided. This is part of Earth Math: A Brief Mathematical Guide to Earth Science and Climate Change. (View Less)