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Karen Vitek's List: What Makes Matter Change?

  • Apr 09, 10

    Bitesize, now used by three-quarters of secondary students and half of those in primary schools, is one of the BBC's most successful online brands.

    www.bbc.co.uk/...revise1.shtml bitesize bbc science mixtures compounds

    • Compounds are chemicals made from atoms of different elements joined by chemical bonds. They can only be separated by a chemical reaction.

       

      A mixture is made from molecules of elements and compounds that are simply mixed together, without chemical bonds. Mixtures can be separated using techniques such as filtration, chromatography, evaporation and distillation.

      • Try the activity to learn more about compounds and mixtures!

    1 more annotation...

  • Apr 09, 10

    This module on Mixtures and Solutions is part of FOSSWEB. FOSS is a research-based science curriculum for grades K—8 developed at the Lawrence Hall of Science, University of California at Berkeley. FOSS is also an ongoing research project dedicated to improving the learning and teaching of science. The FOSS project began over 20 years ago during a time of growing concern that our nation was not providing young students with an adequate science education. The FOSS program materials are designed to meet the challenge of providing meaningful science education for all students in diverse American classrooms and to prepare them for life in the 21st century.

    www.fossweb.com/...index.html chemistry mixtures science fossweb solutions

    • Welcome to the Mixtures and Solutions Module, where you learn basic concepts of chemistry! You can take a trip to the junkyard to find out what elements are in the materials we discard.

  • Apr 09, 10

    From the Chemistry Department at Purdue University

    www.chem.purdue.edu/...elements.html mixtures Elements compounds chemistry

  • Apr 09, 10

    The representation illustrates the separation of mixtures using physical properties. The interactive simulation allows "lab attendants" to separate mixtures using virtual tools. Separation mechanisms are chosen based upon substances' physical properties, and findings are recorded in a chart.

    * Resource Copyright Owner: Copyright © by Harcourt, Inc.
    * Type of Resource: audio/wav

    www.harcourtschool.com/...mixture.html mixtures science lab Chemistry interactive

  • Apr 09, 10

    This site is designed by Sheppard Software.
    Purpose
    We design educational software and online games with these goals: 1) To add sound and visual effects to make learning fun and more memorable. 2) To design games with many difficulty levels so that players will continue to be challenged no matter how far they progress. 3) To provide games that will exercise players' brains.

    People
    Brad Sheppard Jr.
    The “Sheppard” in Sheppard Software, Brad Sheppard has been designing educational software since 1982. He has an extensive background in both game design and programming. He has five US Patents.

    www.sheppardsoftware.com/Elementsgames.htm chemistry elements tabla_periodica periodic_table periodictable interactive

    • These eight online games teach you the chemical elements,   periodic table, and more.

       

      Just click to play and learn!

      • Under Periodic Table Games first do Level L: Learning before doing Level 1: Beginner. To get started click on Play!

  • Apr 09, 10

    www.chem4kids.com/...index.html

    •    

      Chem4Kids Quiz: Periodic Table

       

  • Apr 09, 10

    www.funbrain.com/...index.html chemistry periodictable periodic_table interactive funbrain Science

    • FunBrain will show you a periodic table that contains the elements' symbols and their periodic numbers.

  • Apr 09, 10

    "The most interactive Web 2.0 periodic table available. Dynamic layouts showing names, electrons, oxidation states, trend visualization, orbitals, isotopes, and instant search. Full descriptions in 30 languages from Wikipedia."

    www.ptable.com periodic_table PeriodicTable chemistry interactive atoms

  • Jan 06, 09

    WebElements™ was conceived by and is written by Dr. Mark Winter. He is a senior lecturer in chemistry at the University of Sheffield in England.

    www.webelements.com science elements reference periodic-table periodic.table periodic_table chemistry matter atoms periodictable

    • Explore key information about the chemical elements through this periodic table

  • Mar 16, 10

    These interactive simulations are from the PhET project at the University of Colorado at Boulder. They are fun, interactive, research-based simulations of physical phenomena.

    phet.colorado.edu/...sims.php interactive science matter states simulations simulation states_of_matter

    • Watch different types of molecules form a solid, liquid, or gas. Add or remove heat and watch the phase change. Change the temperature or volume of a container and see a pressure-temperature diagram respond in real time. Relate the interaction potential to the forces between molecules.

  • Mar 16, 10

    "Right now, you're on CHEM4KIDS.COM. If you are looking for basic chemistry information, stay on this site. It's not just for kids, it's for everyone. We have information on matter, atoms, elements, the periodic table, reactions, and biochemistry. "

    www.chem4kids.com/index.html elements science chemistry matter chem4kids atoms periodic_table

  • Mar 10, 10

    "An interactive animation to show how the particles are arranged in solids, liquids and gases. The animation also shows how the particles behave as the substance changes phase. "

    www.footprints-science.co.uk/states.htm matter science states_of_matter Chemistry interactive

  • Jan 06, 09

    "This module will introduce you to many of the basic properties of matter including atoms, ions, elements, molecules, and density. You will use real data from plasma physics research to further explore the basic properties of matter."

    ippex.pppl.gov/matter Chemistry matter atoms ippex simulations states_of_matter

  • Mar 10, 10

    "Matter is everywhere. Matter is anything that has mass and takes up space. Everyone is made up of matter that is constantly experiencing both chemical and physical changes. "

    www.schools.utah.gov/...intro.htm matter science interactive states_of_matter chemistry mixtures

    • Matter is everywhere. Matter is anything that has mass and takes up space.   Everyone is made up of matter that is constantly experiencing both chemical   and physical changes.

  • Jan 06, 09

    "Dalton's theory had four main concepts:

    1. All matter is composed of indivisible particles called atoms. Bernoulli, Dalton, and others pictured atoms as tiny billiard-ball-like particles in various states of motion. While this concept is useful to help us understand atoms, it is not correct as we will see in later modules on atomic theory linked to at the bottom of this module.
    2. All atoms of a given element are identical; atoms of different elements have different properties. Dalton’s theory suggested that every single atom of an element such as oxygen is identical to every other oxygen atom; furthermore, atoms of different elements, such as oxygen and mercury, are different from each other. Dalton characterized elements according to their atomic weight; however, when isotopes of elements were discovered in the late 1800s this concept changed.
    3. Chemical reactions involve the combination of atoms, not the destruction of atoms. Atoms are indestructible and unchangeable, so compounds, such as water and mercury calx, are formed when one atom chemically combines with other atoms. This was an extremely advanced concept for its time; while Dalton’s theory implied that atoms bonded together, it would be more than 100 years before scientists began to explain the concept of chemical bonding.
    4. When elements react to form compounds, they react in defined, whole-number ratios. The experiments that Dalton and others performed showed that reactions are not random events; they proceed according to precise and well-defined formulas. This important concept in chemistry is discussed in more detail below. "

    www.visionlearning.com/...module_viewer.php imported Bookmarks matter science physics chemistry interactive

      • Dalton's theory had four main concepts: 
           
        1. All matter is composed of indivisible particles called atoms. Bernoulli, Dalton, and others pictured atoms as tiny billiard-ball-like particles in various states of motion. While this concept is useful to help us understand atoms, it is not correct as we will see in later modules on atomic theory linked to at the bottom of this module. 
          2.  
        2. All atoms of a given element are identical; atoms of different elements have different properties. Dalton’s theory suggested that every single atom of an element such as oxygen is identical to every other oxygen atom; furthermore, atoms of different elements, such as oxygen and mercury, are different from each other. Dalton characterized elements according to their atomic weight; however, when isotopes of elements were discovered in the late 1800s this concept changed. 
          3.  
        3. Chemical reactions involve the combination of atoms, not the destruction of atoms. Atoms are indestructible and unchangeable, so compounds, such as water and mercury calx, are formed when one atom chemically combines with other atoms. This was an extremely advanced concept for its time; while Dalton’s theory implied that atoms bonded together, it would be more than 100 years before scientists began to explain the concept of chemical bonding.
          4.  
        4. When elements react to form compounds, they react in defined, whole-number ratios. The experiments that Dalton and others performed showed that reactions are not random events; they proceed according to precise and well-defined formulas. This important concept in chemistry is discussed in more detail below. 

  • Mar 10, 10

    "The different states of matter have long confused people. The ancient Greeks were the first to identify three classes (what we now call states) of matter based on their observations of water. But these same Greeks, in particular the philosopher Thales (624 - 545 b.c.), incorrectly suggested that since water could exist as a solid, liquid, or even a gas under natural conditions, it must be the single principal element in the universe from which all other substances are made. We now know that water is not the fundamental substance of the universe; in fact, it is not even an element. "

    www.visionlearning.com/...module_viewer.php matter states_of_matter interactive science

    • The different states of matter have long confused people. The ancient Greeks were the first to identify three classes (what we now call states) of matter based on their observations of water. But these same Greeks, in particular the philosopher Thales (624 - 545 b.c.), incorrectly suggested that since water could exist as a solid, liquid, or even a gas under natural conditions, it must be the single principal element in the universe from which all other substances are made. We now know that water is not the fundamental substance of the universe; in fact, it is not even an element.

  • Mar 10, 10

    "Gases, liquids and solids are all made up of microscopic particles, but the behaviors of these particles differ in the three phases. The following figure illustrates the microscopic differences."

    www.chem.purdue.edu/...states.html matter states_of_matter science chemistry

    • Gases, liquids and solids are all made up of microscopic particles, but the behaviors of these particles differ in the three phases. The following figure illustrates the microscopic differences.

  • Mar 10, 10

    The information on this site is from NASA's Glenn Research Center: States of Matter. It has a basic description of the three states of matter and some good illustrations.

    www.grc.nasa.gov/...state.html matter states_of_matter chemistry interactive science

  • Mar 10, 10

    Use this interactive to help you understand the states of matter: solid, liquid and gas.

    www.harcourtschool.com/...states_of_matter science interactive chemistry states_of_matter Matter

  • Jan 06, 09

    "Periodic Table and the Elements

    Periodic Table Drawing

    Now we're getting to the heart and soul of the way your universe works. Elements are the building blocks of all matter. We talked about quarks in the atoms section. They are smaller than the atoms of an element, but only when they group with other quarks do they form atoms that have recognizable traits. Some quarks combine to make an oxygen (O) atom. Other quarks can combine to form a nitrogen (N) atom. It's the atoms that are different and unique, even though they are made of the same pieces.
    "

    www.chem4kids.com/...elem_intro.html imported Bookmarks science elements periodictable periodic_table education periodic chemistry chem4kids

    • Now we're getting to the heart and soul of the way your universe works. Elements are the building blocks of all matter. We talked about quarks in the atoms section. They are smaller than the atoms of an element, but only when they group with other quarks do they form atoms that have recognizable traits.
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