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| Gumdrop Atoms |
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| Build lithium atom models with gumdrops, toothpicks, skewers, and stickers. Atoms are the building blocks that make up all matter, but they are made up of subatomic particles. Red gumdrops represent neutrons, green gumdrops represent proton, and purple or blue gumdrops represent electrons. Toothpicks connect the protons and neutrons into a nucleus, while the skewers connect the electrons to the nucleus. Quarks, neutrinos, gluons, leptons, and photons are not represented in this model. Discover the role of energy and how atoms in a molecule share electrons. |
| Topic: Atoms; Molecules |
| URL: https://www.teachengineering.org/activities/view/cub_mix_lesson1_activity1 |
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| A Boy and His Atom: The World?s Smallest Movie |
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| IBM Research scientists created an extraordinary animation using carbon monoxide (CO) atoms magnified to over one hundred million times their actual size. To get a perspective of just how tiny this is, if an atom were the size of an orange, then the orange would be the size of Earth. IBM scientists created 242 still images of the atoms and then put them together to create ?A Boy and His Atom.? A second video explains how they were able to do this with a tool that could move atoms to create the animation image by image. |
| Topic: Atoms; Animated films |
| URL: https://thekidshouldseethis.com/post/ibm-boy-and-his-atom-smallest-movie |
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| Atom |
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| Building blocks for planets and people, atoms are the tiniest bits of an element that retain the unique chemical properties of that element. Examine atomic structure and investigate atomic models. Find pictures and diagrams of atoms and molecules. Explore electrical charges within an atom. Just as the telescope opened up new discoveries about space, the microscope helped humans learn about the tiniest bits of matter. Discover how atomic models have changed over time. Meet the scientists who have contributed to our knowledge about atoms. |
| Topic: Atoms; Atomic structure |
| URL: https://www.neok12.com/Atom.htm |
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| Atoms |
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| The front of this virtual card from the American Museum of Natural History gives you a glimpse of the subject the card covers. "Flip" the card over to the back to read a definition of atoms. Find out who discovered the electron and why he compared an atom to a "plum pudding." Test your newfound knowledge by taking several one-question quizzes (feedback for the answers is immediate). The card also offers a short summary of the topic arranged in the form of a list. |
| Topic: Atoms |
| URL: https://www.amnh.org/explore/ology/ology-cards/167-atoms |
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| Periodic Trends: Ionic Radii |
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| If an atom loses electrons, the ion gets smaller; if it gains electrons, the ion gets bigger. An ionic radius of an atom is measured in a crystal lattice which requires a solid form of the compound. X-ray crystallography is used for this. A chart shows examples that compare ion sizes to atom sizes in metals and non-metals. Use the link "Click to view interactive" in the lesson to view a video (not interactive) that explains atomic and ionic radii. Also included is a summary of the lesson and review questions. |
| Topic: Atoms |
| URL: https://www.ck12.org/chemistry/periodic-trends-ionic-radii/lesson/Ionic-Radii-CHEM/ |
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| Atom |
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| A million times smaller than a period at the end of a sentence, an atom is the smallest piece of matter that has all the characteristics of a certain element. They are tiny, but there are a lot of them. If all the atoms in a one-half carat diamond were lined up side-by-side, they would reach from the Earth to the Sun. Inside the atom are even smaller particles. Find out how many protons, neutrons, and electrons are in one atom of gold. |
| Topic: Atoms |
| URL: https://editors.eol.org/eoearth/wiki/Atom |
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| Atoms, Elements and Compounds |
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| Atoms are everywhere and in everything. A million atoms could fit on the point of a needle, so most things are made up of trillions and trillions of atoms. Iron, mercury, zinc, copper, carbon, and oxygen are a few different types of elements. The atoms of one element are all exactly the same. The atoms of elements from the same group on the periodic table are similar in some ways. The periodic table can be divided into metals and non-metals. Non-metals float in water and are usually gases at room temperature, but metals conduct electricity. |
| Topic: Atoms; Nonmetals |
| URL: https://www.bbc.co.uk/bitesize/topics/zstp34j |
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| Questions and Answers: Atoms, Elements and Molecules |
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| Do you know what atoms are made of? Would you like to learn more about the basic building blocks of matter? Jefferson Lab has a web site that will teach you this and more. Learn all about atoms, molecules, and elements. Discover what an element is and how many elements there are. Learn how to read an electron configuration table. Read about the history of certain elements. Who discovered them? If you still have a question, you can check the question archive or submit your query. |
| Topic: Atoms; Atomic structure |
| URL: http://education.jlab.org/qa/atom_idx.html |
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| Atoms: Protons, Neutrons, Electrons |
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| The tiniest particles that make up matter, billions of atoms can be found in tiny seeds. You need a really strong microscope to see them. Atoms have a nucleus of protons and neutrons with electrons that orbit the nucleus. The number of protons and electrons determine the element's number on the periodic table. Discover the difference between elements and compounds. Investigate the difference between atoms and molecules. Test your knowledge to see if you know what's at the center of every atom and what the weight of an atom tells us. |
| Topic: Atoms; Atomic structure |
| URL: https://studyjams.scholastic.com/studyjams/jams/science/matter/atoms.htm |
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| Interactives: The Periodic Table |
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| Here is your chance to learn all about chemistry using the Periodic Table of the Elements. Start with the basics and review the history of the concept of matter and chemistry. Learn about the basic structure of the atom. On this site, you can print out a Periodic Table for you to study. Once you have learned a little about the elements, test your knowledge by playing "Name That Atom." This interactive site will provide you with hours of fun as you learn all about chemical elements. |
| Topic: Chemical elements; Atoms; Periodic table |
| URL: https://www.learner.org/series/interactive-the-periodic-table/ |
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| 3D Locations of 23,000 Individual Atoms Seen for the First Time |
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| Everything in the world is made up of atoms, but figuring out precisely where atoms are has been a challenge. Researchers at Lawrence Berkeley National Laboratory of UCLA found over twenty-three thousand atoms in a tiny particle. They used a scanning electron microscope to look at a particle made of iron and platinum. The big question is, of course, why would anyone care where the atoms are in a particle? In this particular case, changing the positions of the iron or platinum atoms can change the particle?s response to a magnetic field. Find out how they did the scanning, and how they located the individual atoms. |
| Topic: Atoms |
| URL: https://www.seeker.com/3d-locations-of-23000-individual-atoms-seen-for-the-first-time-2235953191.html |
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| Thomson's Atomic Model |
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| Atoms were first discovered in 1804 by John Dalton. He believed that they were the smallest particles of matter. In 1897, a British scientist named Joseph John Thomson discovered particles inside the atom. Read about Thomson's experiments that led to finding electrons. He used a plum pudding model to illustrate how he believed an atom can be mostly positive in charge (the pudding) with negatively charged electrons (plums) scattered through it. Today, however, we know that the positive charge is concentrated in an atom's nucleus with electrons swirling around in the empty space surrounding the nucleus--as shown in a colorful illustration. This lesson includes a summary, review questions, and a video for further study on the Thomson model of the atom. |
| Topic: Atoms |
| URL: https://www.ck12.org/chemistry/plum-pudding-atomic-model/lesson/Thomsons-Atomic-Model-MS-PS/ |
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| The Nucleus: Crash Course Chemistry #1 |
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| Hank Green asks for five minutes to convince you that chemistry is amazing in this Crash Course video. Chemistry is a way to explain how life was first formed, how iPhones work, how diseases are cured. His argument is that by understanding these things, you can enjoy life more. He begins with the idea that all stuff is made from atoms?called the "atomic theory." Learn about the three miniscule particles?proton, neutron, and electron?that make up the atom. Atoms have a nucleus, where you'll find the protons and neutrons. Electrons circle outside the nucleus. Albert Einstein proved the existence of molecules and atoms in 1905. |
| Topic: Atoms |
| URL: https://thecrashcourse.com/courses/the-nucleus-crash-course-chemistry-1/ |
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| Atoms |
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| Have you ever seen the inside of an atom? Actually, no one has. Theoretically, an atom isn't the smallest bit possible, but subatomic particles are no longer elements. Electrons zoom around the nucleus, but they move so fast that they aren't really like satellites in orbit. Some models show fuzzy orbitals instead of actually marking individual electrons. Find out how molecules are built. Learn about ions and isotopes. Investigate the history of scientific research into atoms. |
| Topic: Atoms |
| URL: https://www.explainthatstuff.com/atoms.html |
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| Atoms and Molecules |
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| Matter is anything that has a mass and takes up space. All matter exists in one of three phases: solids, liquids, and gases. Matter is made up of tiny particles known as atoms. When atoms combine with one another they form a molecule. The structure of an atom is a densely packed nucleus filled with protons and neutrons. Surrounding the nucleus is an orbiting field of electrons. Learn more about atoms and molecules, the smallest building blocks for life. |
| Topic: Atoms; Molecules |
| URL: https://mocomi.com/atoms-and-molecules/ |
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| Atomic Forces |
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| What three forces act inside an atom? They are an electromagnetic force, a strong nuclear force, and a weak nuclear force. This lesson looks at all three using illustrations, review questions, and a video on the two types of nuclear forces. You have an option to launch an online page that challenges you to build a helium atom. |
| Topic: Atoms |
| URL: https://www.ck12.org/chemistry/atomic-forces-in-chemistry/lesson/Atomic-Forces-MS-PS/ |
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| Atoms from A to Easy! |
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| Zoom in on an atom, like one of the billions that make up a cell phone. A clay model shows what an atom might look like. The nucleus is made of protons and neutrons. Negatively-charged electrons orbit the nucleus in energy levels that can only hold a certain number of electrons. Take a look at the quantum model of an atom on the x, y, and z-axis. Explore the electron configurations for magnesium and chlorine. The valence electrons are those in the outermost energy level. |
| Topic: Atoms |
| URL: https://ed.ted.com/best_of_web/YlZZblvz |
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| What is the Universe Made of? |
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| The atoms around you have existed for billions of years -- and most originated in the flaming, gaseous core of a star. Dennis Wildfogel tells the captivating tale of these atoms' long journeys from the Big Bang to the molecules they form today. |
| Topic: Atoms; Space sciences |
| URL: https://ed.ted.com/lessons/what-is-the-universe-made-of-dennis-wildfogel |
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| Atoms Around Us |
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| Atoms are the basis of chemistry. They are the basis for everything in the Universe. Visit this web site " Chemistry 4 kids" to learn all about atoms, chemical bonds, and ions. This section is complete with illustrations and easy to understand text. Once you are done with these topics, move on to others such as matter, reactions, elements, and biochemistry. |
| Topic: Atoms |
| URL: http://www.chem4kids.com/files/atom_intro.html |
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| Atom Building: You Try It. |
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| Would you like to build an atom of your own? This is your chance, but before starting, you should check out the guide to elementary particles to learn how atoms are constructed. Next, read the guide to building a stable atom. The glossary will explain any terms or concepts you're not familiar with. Now that you have the basics down, get started on your own atom. Build a carbon atom by starting with a hydrogen atom base and add protons, electrons, and neutrons, but be sure that you don't build a radioactive atom or you'll have to start over. |
| Topic: Atoms; Protons; Neutrons |
| URL: http://www.pbs.org/wgbh/aso/tryit/atom/ |
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| How Atoms Work |
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| "Harnessing the power of the atom" is how some people have described developing nuclear energy and nuclear bombs. Physicists learned to split the tiny atom. An atom is like one paper clip in a pile of paper clips. It's the smallest piece that still has all the characteristics of that element. Investigate atomic theory and atomic weight. Mendeleev developed the first periodic table, but it had some gaps because certain elements hadn't yet been discovered. Find out who discovered the electron and the nucleus and what we know about the parts of the atom. |
| Topic: Atoms |
| URL: http://science.howstuffworks.com/atom.htm/printable |
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| The Bohr Atom |
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| What are the major parts of an atom? Paul Andersen explains what the electrons are doing inside the atom, a fact first discovered by Niels Bohr. See how a Bohr model concept map helps explain what electrons are doing and how they move. The number of electrons dictates where an element appears on the Periodic Table. The properties of atoms are built on these electrons. Learn what it means for an electron to be "quantized." Andersen leaves you with a review question under "Did You Learn?" |
| Topic: Atoms; Electrons |
| URL: http://www.bozemanscience.com/ap-phys-004-the-atom |
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| HeadSqueeze: Why Do Hot Things Glow? |
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| Greg Foot of HeadSqueeze answers the ?burning? question of, ?Why do hot things glow?? Everything is made of atoms, and when they are heated, they gain thermal energy and start to vibrate and emit electromagnetic waves of different colors. When a piece of metal is heated, it begins to glow red, which is the electromagnetic radiation our eyes perceive as red. Heating it even hotter can change the colors to orange, yellow, green, and blue at various temperatures. At about 1,500 degrees Celsius when all the colors appear at once, the object glows white hot. |
| Topic: Heat; Atoms |
| URL: https://thekidshouldseethis.com/post/why-do-hot-things-glow-video |
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| Just How Small Is an Atom? |
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| If each atom in a grapefruit were the size of a blueberry, the grapefruit would be the size of the Earth. Perhaps that gives you some idea of the incredibly small size of an atom. If the atom were the size of a football stadium, the nucleus would be the size of a marble. Most of the atom is filled with empty space. The density of the nucleus is comparable to the mass of about 6.2 billion cars fitting in a cube that is one foot on each side. |
| Topic: Atoms; Atomic mass |
| URL: https://ed.ted.com/lessons/just-how-small-is-an-atom |
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| The Secret Science of Atoms |
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| Much smaller than the period at the end of this sentence, an atom is very tiny. In factm millions of atoms would fit in a period! Six hundred billion trillion water molecules fit in a teaspoon. What if the molecules were donuts or pieces of paper? How high would they stack? Find out where atoms come from and what they are made of. Did you know that hydrogen and helium make up 98% of the stuff in the universe? |
| Topic: Atoms |
| URL: https://www.acs.org/content/acs/en/education/whatischemistry/adventures-in-chemistry/secret-science-stuff/atoms.html |