Apple Screen 2
The apple is ripening from the inside. Ripening occurs due to injury or infection by fungi (the signal causes ripening chemicals to be released in the fruit). The fruit becomes soft as it ripens, which accounts for the dents.
Bulbs and Roots: Radishes
Radishes have roots. These roots help the radishes absorb nutrients and water from the soil. The radish and root are buried underneath the soil. The green leaves are above soil to gather sunlight for the plant.
Basic facts about presidential caucuses in Iowa
This 1:38 video explains how the Iowa caucus system works for both parties. It has an excellent question and answer section as well. You need to stop the video after the story is done as other news follows that is not related to the issue.
Examining Genetic Diversity in Disjunct Populations using Random DNA Markers
Molecular biological techniques are used to study naturally occurring genetic variation, and have greatly facilitated the understanding of problems in many areas of biology. In this lab, we examine two populations of terrestrial isopods in the Family Armadillidiidae using Random Amplification of Polymorphic DNA (RAPD Analysis). RAPDs are robust and generally species-independent. Using this technique, we are able to detect and analyze genetic variation within and between two different populations
Emerald ash borer
The emerald ash borer is an insect that was introduced to the United States on accident. The larvae of this insect feed on essential parts of the ash tree. This non-native species has killed several million trees already.
Gemini X spacecraft
Time-lapse photos or video show progressions from the start of an event to the end of the event. This photo illustrates a time-lapse view of the launch of a spacecraft and the support arm falling away as the craft launches.
Temas de ayer y de hoy... (El Paro)
An opinion piece dealing with the theme of unemployment (el paro) and comes with glossary and list of idiomatic expressions.
Gettin' Triggy Wit It (WSHS Math Rap Song)
This is a parody of "Gettin' Jiggy Wit It" by Will Smith. The video and song teaches the basics of trigonometry. This is a great resource and a fun way to help teach mastery of these important skills. (03:48)
Matrix Concepts -- Explanations
This module introduces basic properties of matrices: concepts, multiplication by a constant, addition and subtraction, and setting two matrices equal to one another.
Just for You
Students are asked to explain how plants and animals may be classified as natural resources.
You Can Die Here
Learn about the environmental conditions of Death Valley in this video from Nature.
Who Needs What?
The teacher leads a discussion in which students identify the physical needs of animals, and then speculate on the needs of plants. With guidance from the teacher, the students then help design an experiment that can take place in the classroom to test whether or not plants need light and water in order to grow. Sunflower seeds are planted in plastic cups, and once germinated, are exposed to different conditions. In particular, within the classroom setting it is easy to test for the effects of l
Using Macroinvertebrates to Evaluate the Condition of Ponds
Macro-invertebrates are commonly used to evaluate the status of streams and rivers. The deep zones of lakes have also been used for this purpose. This project includes a protocol for using macro-invertebrates to compare and evaluate ponds and wetlands.
Romanian Consumer Health Information
This Web page from the 24 Languages Project out of the Spencer S. Eccles Health Sciences Library provides access to sound files on various consumer health topics including chickenpox, hepatitis A, and hepatitis B vaccinations. A QuickTime plug-in, Real Media, Windows Media, or other MP3 player is needed in order to use the resources.
các kiểu dữ liệu cơ bản trong Pascal
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The Spanish Present Subjunctive Verb Tense
This module aims to answer the following four questions: 1) How are regular present subjunctive verbs conjugated? 2) How are irregular present subjunctive verbs conjugated? 3) How do we construct sentences using the present subjunctive? 4) When is the present subjunctive used?
What Happened to the Dolphins?
This case study is based on the 1978 – 1988 Bottlenose dolphin die-offs along the Atlantic coast of the U.S. It demonstrates nature of science, as new information evolved theories change. New observations lead to more sophisticated inferences, as more observations are carefully recorded, better inferences can be made.
English Language, Linguistics and Literature. Selected Readings of Classical Writings for Linguistic
This is a collection of writings in English language concerning language, linguistics, and literature. The selected readings of classical writings concern this development of the English language since its beginnings.
Open Education Cup: What is OER?
A brief introduction to OER and its importance in the Open Education Cup contest (http://OpenEducationCup.org).
Learn Hindi Daily Show – Lessons from 2010 that are not rated
Could you take a moment and look at one of the lessons below. These are lessons that have not been rated. Perhaps you haven’t seen them? Could you take a...