Curated OER
What do Atoms Look Like?
In this atoms worksheet, learners complete 58 questions about the atomic radius of atoms, the ionization energy, the valence electrons, metals, non-metals and semi-metals and the families of elements.
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Elements and Bonding Worksheet
In this elements and bonding worksheet, students classify given elements, they identify valence electrons in atoms, they explain the reactivity of elements, and they explain why certain atoms gain electrons while others lose electrons.
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Atoms, Molecules, and Ions
In this molecules learning exercise, students review the parts of an atom and use element mass to determine isotopes. Students give the group, period, and classification for the given elements. This learning exercise has 6 short answer...
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The Modern Atom
In this modern atom worksheet, students answer 7 questions about electron configurations of atoms, flame tests, spectroscopy, the energy of electrons and quantum numbers. Students write electron configurations and orbital filling diagrams.
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The Periodic Table
In this periodic table worksheet, learners complete a crossword puzzle given 19 clues about elements, symbols, properties of elements, atomic number and atomic masses of elements.
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Making Compounds Study Guide
In this making compounds worksheet, learners are given 5 atoms and they draw a diagram of each. They identify the atom to the right of each and name the compound they make. Students define the terms compound, molecule and chemical...
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Periodic Table of Elements on Mars
In this periodic table of elements activity, students are given clues and descriptions for elements in order to determine where they belong in the "Martian Periodic Table". They place the elements in the proper place in the given...
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Electonegativity-How Do Atoms Stick Together?
In this electronegativity worksheet, students use given electronegativity values for each element to determine the bond type in 9 molecules.
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Elements
In this elements worksheet, students write in the symbol of the chemical element that matches its description. This worksheet has 10 fill in the blank questions.
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Chemistry
In this general chemistry worksheet students complete a series of multiple choice and short answer questions on elements, chemical properties and various chemical reactions.
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Interpreting Chemical Formulas
In this chemical formulas activity, students practice naming molecular compounds by their formulas and determine if a gas is a compound or an element. This activity has 13 fill in the blank questions.
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Size of Atoms - Trends
This compendious collection of slides leaves no questions when it comes to the concept of atomic size. Thorough and easy-to-read graphs, tables, and graphics explain atomic radii, the shielding effect, the octet rule, isoelectric...
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Edible Atom/Molecule
Upcoming chemists construct atom or molecule models out of candy. This is a classic idea that learners really enjoy; however, this lesson plan is vague. There is no instruction about the structure of atoms or molecules. Make sure you...
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Atoms, Kinetic Theory, Solids and Fluids
Students identify and describe the building blocks that make up an atom. They also compare the ages of atoms to the ages of the materials they compose,as well as, give examples that illustrate the small size of atoms.
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Parts of an Atom
In this atom components instructional activity, students label the parts of the pictured atom. Students include all the words in the word bank.
PhET
Radioactive Dating Game
Uranium 235 has a half-life of over 700 million years and is the fuel used in the atomic bomb dropped on Hiroshima, Japan. Pupils see the half-lives and decay rates of Carbon-14 and Uranium-238. They also take measurements of these two...
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Atoms: The Building Block of Matter
Young scholars examine how scientific theories are developed. In this matter lesson, students explore the basic idea of quantum theory. They create a timeline of scientists, their contributions, and discoveries.
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Elements, Compounds, and Mixtures
In this matter worksheet, students review the three forms of matter by reading a poem and completing 1 matching and 5 short answer questions.
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Structure of the Atom
Young scholars practice drawing the atomic structure of several different elements. They complete critical thinking questions about atomic structure and compare the atomic mass units for different ions and isotopes of an element.
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Atoms, Elements, Molecules, and Compounds
In this elements worksheet, students review the Bohr model and define negative and positive subatomic particles. Students compare molecules and compounds. This worksheet has 11 short answer questions and 4 problems to solve.
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Making Atoms
In this atoms worksheet, students determine an atoms based on its protons, and neutrons. Students determine the electron levels for the oxygen atom. This worksheet has 1 multiple choice, 4 fill in the blank, and 13 short answer questions.
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Calculating the Average Mass of the Newly Discovered Element: Bean
Students determine the average mass of a new element using masses from three isotopes. In this chemistry instructional activity, students explain what an isotope is. They discuss their importance and uses.
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General Chemistry
In this chemistry worksheet, students identify the name and abbreviation of the SI unit for mass, length, time, electric current, and temperature. Then they give the abbreviation for each of the units listed and describe what they are...
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The Atoms Family-Atomic Math Challenge
In this atoms activity, middle schoolers determine the number of protons, neutrons, electrons, the atomic mass and the atomic number of 16 elements.
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