Avena’s website has links to new research and articles about the effects of sugar on the brain and behavior, and how this can influence body weight.Want to learn more about the adverse effects of sugar? Read Food Junkie, Dr. Avena’s blog on Psychology Today. Here is one post that is particularly relevant: Sugar Cravings: How sugar cravings sabotage your health, hormone balance & weight loss, by Dr. How Do Cold Packs Work? - A Chemistry Lesson. The chemistry of cookies - Stephanie Warren.
Heat and Temperature. A melting ice cube on a plate.
Knowing the difference between heat and temperature is important. It can lead to a clearer understanding of energy. Above is a picture of an ice cube melting in a small dish. The ice, water, dish, and are experience heat exchanges and temperature changes. In this section we will define both heat and temperature and hopefully reach an understanding of how they are related, but not identical ideas.
This page covers some introductions about heat and temperature. Fluids (part 1) 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.
Discuss how much water the ocean contains. Display the MapMaker Interactive and make sure students can all identify which areas are land and which are ocean. Ask: Does the Earth have more land, or more ocean? Students should notice that there is more ocean than land. Explain that the ocean covers almost three-quarters of Earth’s surface and is very deep. USGS Education. Monitoring the Earth from Space with SeaWiFS. 2: Why study the oceans from space?
Before we jump into the main subject of this presentation, it might be helpful to understand how we have learned what we know about the oceans in the past and how we are doing this today. Being an oceanographer and working for NASA has more often than not seriously confused people. My standard reply when asked what an oceanographer is doing at NASA is to say that I study the oceans from space. At that point, people generally shake their heads and look at me in a very puzzled way and ask "why do you have to launch a satellite to study the oceans? Wouldn't it just be easier to go out in a boat and look at it?
". Most of what we have learned about the oceans over the years has come from people going out to sea in boats and tossing things over the side and collecting whatever happens to get caught in their nets. Satellites on the other hand are wonderful for looking at very large areas of the world in a very short time. More Information: Chemistry Laboratory Safety Rules. Some rules are NOT made to be broken.
That is true of the rules used in a chemistry lab. They are really, truly for your safety and not your humiliation. Follow the instructions given by your instructor or lab manual.Don't start a lab until you know all of the steps, from start to finish. If you have questions about any part of a procedure, get the answer before starting.Do Not Pipette By Mouth - EverYou say, "But it's only water. " Even if it is, how clean do you think that glassware really is?
Chem Lab Resources How To Keep a Lab NotebookHow To Write a Lab ReportLab Report TemplateLab Safety SignsChemistry Pre LabLab Safety Quiz. Periodic Table of the Elements by WebElements. Mars interactive panorama: What it looks like to be there. Imagine standing on Mars and looking around.
Or instead of imagining, check out this interactive panorama. Nearly 300 images taken by two Curiosity rover cameras over the course of 13 days were used to create the best quality images we’ve ever seen of Mars. Earth & Sky. : Education. NASA - Home. Secret Worlds: The Universe Within - Interactive Java Tutorial. Secret Worlds: The Universe Within View the Milky Way at 10 million light years from the Earth.
Then move through space towards the Earth in successive orders of magnitude until you reach a tall oak tree just outside the buildings of the National High Magnetic Field Laboratory in Tallahassee, Florida. After that, begin to move from the actual size of a leaf into a microscopic world that reveals leaf cell walls, the cell nucleus, chromatin, DNA and finally, into the subatomic universe of electrons and protons. Once the tutorial has completely downloaded, a set of the arrows will appear that allow the user to increase or decrease the view magnitude in Manual mode. Click on the Auto button to return to the Automatic mode. Notice how each picture is actually an image of something that is 10 times bigger or smaller than the one preceding or following it. Earth = 12.76 x 10+6 = 12,760,000 meters wide (12.76 million meters) Contributing Authors David A.
Questions or comments? Geology.com: News and Information for Geology & Earth Science. Moon Phases Calendar / Moon Schedule. Login to the JASON Mission Center.