background preloader

Mechanism of The Seasons

Mechanism of The Seasons

http://www.youtube.com/watch?v=WLRA87TKXLM

Related:  Patterns in the night sky

The Reason for the Seasons - National Geographic Society 1. Activate prior knowledge about seasons and sunlight.Explain to students that the Earth orbits an ideal distance from the sun, and this affects the weather we experience here on Earth. Ask: What are the different seasons? Write the sequence of the seasons on the board for students’ reference: winter, spring, summer, autumn. Metaphysical Information on Selenite - Selenite Sword Maker Selenite’s Inherent Properties Selenite is hydrous calcium sulfate mineral; a form of gypsum crystal also known as Satin Spur and in fine grain form Alabaster. Selenite is named after the Greek goddess of the moon, Selene because of its soft white light and many metaphysical and healing benefits.

Science Teaching Junkie: Clearest Way to Teach Moon Phases...EVER! This moon phase board was fairly easy to make. After making a run to the Dollar Tree and rummaging through our science storeroom to collect the needed supplies to make this, it was pretty inexpensive and so worth every penny! Essentially, this Moon Phase board allows students to visualize and better understand the cause of moon phases and comprehend the 2 different views that are often given on a diagram (view from space and view from the Earth). Up to this point, I've done a Lunar Lollipop Investigation, which I thought was great, but this beats it by a long shot! A large majority of my students don't really understand why the lit part of the moon doesn't face the sun on part of the view as seen from Earth on every moon phase diagram (see below). Even though I give many different examples and explanations, I still see a puzzled look on several of the students' faces.

Double helix unlocked key to life By Steve Sternberg, USA TODAY Fifty years ago this week, two brash young scientists in an obscure lab at the University of Cambridge in England unraveled the structure of DNA, the elegant living thread that is the genetic basis of inheritance and evolution. The discovery of the double helix by James Watson, 25, and Francis Crick, 36, on Feb. 28, 1953, unveiled what Crick called “the secret of life.” DNA is the molecule that makes and maintains all life. It enables life to re-create itself. It contains the blueprints and the toolbox for understanding how humans work.

The best educational iPad apps for kids Overview This incredible educational app displays the solar system in the most realistic way we have ever seen! Zoom in and out and rotate to navigate your way around the 3D solar system model and view the planets, their moons, the sun and the stars in relation to each other at any desired time of day. You can read about these extraterrestrial bodies, watch interesting videos and even view everything in 3D if you have some cyan-red 3D glasses handy!

Cosmology Cosmology is study of the Universe in its totality, and by extension, humanity's place in it. Though the word cosmology is recent (first used in 1730 in Christian Wolff's Cosmologia Generalis), study of the Universe has a long history involving science, philosophy, esotericism, and religion. In recent times, physics and astrophysics have come to play a central role in shaping the understanding of the universe through scientific observation and experiment; or what is known as physical cosmology shaped through both mathematics and observation in the analysis of the whole universe. In other words, in this discipline, which focuses on the universe as it exists on the largest scale and at the earliest moments, is generally understood to begin with the big bang (possibly combined with cosmic inflation) - an expansion of space from which the Universe itself is thought to have emerged 13.7 billion years ago. This is the purpose of the ancient metaphysical cosmology.

Birthday Moons Students become familiar with lunar phases by locating and then graphing the Moon phase of their own birthdays. After listening and discussing lunar myths and legends they create their own Birthday Moon Stories. The learner will: generate a birthday moon for his/her birth date this year and the previous year using various web sites. classify his/her birthday moon and produce a "moon card" of his/her own birthday moon recognize and describe the patterns of the Moon's phases.

Science Science[nb 1][1]:58[2] is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe.[nb 2] Contemporary science is typically subdivided into the natural sciences, which study the material universe; the social sciences, which study people and societies; and the formal sciences, which study logic and mathematics. The formal sciences are often excluded as they do not depend on empirical observations.[3] Disciplines which use science, like engineering and medicine, may also be considered to be applied sciences.[4] From classical antiquity through the 19th century, science as a type of knowledge was more closely linked to philosophy than it is now, and in the Western world the term "natural philosophy" once encompassed fields of study that are today associated with science, such as astronomy, medicine, and physics.

Using Multicultural Dimensions to Teach Astronomy Using Multicultural Dimensions to Teach Astronomy Nalini Chandra & John Percy, University of Toronto Activity 5: Decoding the Celestial Navigation Clues in the Song, Follow the Drinking Gourd. Purpose: Discover practical uses of the sky as a historical navigational aid. Materials: The words to the song and a description of their meanings can be found at the following web site: Print out just the song lyrics for your students. Interactive Test Prep Welcome to the Virginia State Standards of Learning Practice Tests! All of the questions on this site come from test materials released by the Virginia Department of Education and are used here with permission. All questions on this site are copyrighted by the Virginia Department of Education and may not be used by other persons or organizations without their permission. Attention Teachers! Read the FAQ to learn how to view the questions a student missed and what their answers were! More rigorous questions are available for some subjects!

BUILDING BIG: Dam Basics With the exception of the Great Wall of China, dams are the largest structures ever built. Throughout history, big dams have prevented flooding, irrigated farmland, and generated tremendous amounts of electricity. Without dams, modern life as we know it would simply not be the same. Since the first large-scale dam was built in Egypt more than 5,000 years ago, engineers have devised various types of dams to withstand the forces of a raging river. Arch dams... are good for narrow, rocky locations.

Lesson Plans Chapter 1: Matter—Solids, Liquids, and Gases Students are introduced to the idea that matter is composed of atoms and molecules that are attracted to each other and in constant motion. Students explore the attractions and motion of atoms and molecules as they experiment with and observe the heating and cooling of a solid, liquid, and gas. Chapter 2: Changes of State Students help design experiments to test whether the temperature of water affects the rate of evaporation and whether the temperature of water vapor affects the rate of condensation.

The Ten Most Disturbing Scientific Discoveries Science can be glorious; it can bring clarity to a chaotic world. But big scientific discoveries are by nature counterintuitive and sometimes shocking. Here are ten of the biggest threats to our peace of mind. 1. The Earth is not the center of the universe. We’ve had more than 400 years to get used to the idea, but it’s still a little unsettling.

Related: