How sugar affects the brain - Nicole Avena. Dr. 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. Nicole Avena and Dr. Sara Gottfried.Watch this video from The National on how food manufactures have tweaked products to increase the addictive nature of processed foods.For an in-depth presentation on the research surrounding sugar overconsumption, watch 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. Directly below, and at the end of this page, are some links to further material: Heat is not temperature. Often the concepts of heat and temperature are thought to be the same, but they are not. Heat ≠ Temperature Perhaps the reason the two are usually and incorrectly thought to be the same is because as human beings on Earth our everyday experience leads us to notice that when you add heat to something, say like putting a pot of water on the stove, then the temperature of that something goes up. 1.
Fluids (part 1) | Fluids. 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. Students also look in more detail at the water molecule to help explain the state changes of water. Chapter 3: Density Students experiment with objects that have the same volume but different mass and other objects that have the same mass but different volume to develop a meaning of density. Chapter 4: The Periodic Table & Bonding Chapter 5: The Water Molecule and Dissolving Chapter 6: Chemical Change Project Based Lessons.
Elements.wlonk.com. New Sims. Earth's Water Cycle. 1. 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. 2. 3. Stage 1: Evaporation—Explain that sunlight hitting the surface of the ocean causes liquid water on the surface to change to water vapor, becoming part of the air. Discuss what happens to rain and snow on Earth. 4. Have students personalize the water cycle by connecting it to where they live. 5.
Where did the water drop go on its journey? 6. Extending the Learning Conduct a simple science experiment so students can see firsthand how water evaporates, condenses, and precipitates. 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. " 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 | Space. 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. Zoom in and look at the intricate detail of the martian rocks and soil.
Look to the right and then look left. Look around! Mars Gigapixel Panorama – Curiosity rover: Martian solar days 136-149 in The World More news about the Mars Curiosity rover Bottom line: Nearly 300 images taken by two Mars 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.