¿Por qué se mueven las placas tectónicas?





Plate Tectonics Khan Academy Mini Lecture
(podéis visualizar el vídeo subtitulado en español en la opción de ajustes)



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MITOSIS Y MEIOSIS

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Aquí tenéis los materiales con los que hemos trabajado la mitosis y la meiosis. DIVISIÓN CELULAR. 4ºESO. FASES DE LA MITOSIS. (Tomado de SCIENCE BRIEFSS) DIFERENCIAS MITOSIS MEIOSIS http://iesicaria.xtec.cat/sbg/BiologiaCurtis/Seccion%203/3%20-%20Capitulo%2011.htm  MEIOSIS https://www.ck12.org/biology/meiosis/lesson/Meiosis-Advanced-BIO-ADV/
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PLANISPHERE

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I hope this planisphere has been usefull for you to observe the positions of stars in the sky... Make your own planisphere Dominic Ford 2014–2019 A planisphere is a simple hand-held device which shows a map of which stars are visible in the night sky at any particular time. By rotating a wheel, it shows how stars move across the sky through the night, and how different constellations are visible at different times of year. Here, I present a kit which you can download and print to make your own planisphere out of paper or cardboard. The design of a planisphere depends on the geographic location where it is to be used, since different stars are visible from different places. I have created kits for use at a wide range of latitudes, which you can download from https://in-the-sky.org/planisphere/ The planisphere presented in this document is designed for use at a latitude of 40◦N . What you need: • Two sheets of A4 paper, or preferably thin card. • Scissors. • A split-pin fast...
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