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What is an Atom?
Third graders understand that the smallest particle is an atom. In this matter lesson, 3rd graders make a piece of aluminum smaller and smaller to see that what's left is still aluminum. Students recognize that cutting into smaller...
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Counting Atoms in a Molecule
In this counting atoms in a molecule instructional activity, learners read about the molecule propanal that was discovered by the giant radio telescope in the Milky Way Galaxy. Students solve 6 problems where they find the number of...
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Radiation Energy
Eighth graders experiment with a Geiger counter and a dosimeter to test the amount of radiation in a room and the amount of radiation received in a day. In this radiation energy lesson plan, 8th graders test the shielding effect of...
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Making Compounds Study Guide
In this making compounds worksheet, students 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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Chemistry Review
In this chemistry review worksheet, students read about atoms and the periodic table and they complete a chart using the periodic table to find the atomic number, atomic mass and group of given elements. Students answer 5 questions about...
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The Periodic Table
In this periodic table worksheet, students complete a crossword puzzle given 19 clues about elements, symbols, properties of elements, atomic number and atomic masses of elements.
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Molecules, Moles and Molar Masses
In this molecules, moles and molar masses worksheet, students find the atomic masses of 8 elements, they write the formulas for 6 diagrams of molecules and they find the molecular masses of 12 compounds. Students also find the fraction...
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Making Models of Atoms and Isotopes
In this models of atoms and isotopes worksheet, students use marshmallow of different colors to represent the protons, neutrons and electrons in an atom. Students make models of the 3 isotopes of hydrogen. They draw a diagram of each and...
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Timeline of Atomic Models
For this atomic models time line worksheet, students draw a diagram of Democritus, Dalton, Thomson, Rutherford and the Electron Cloud model of the atom.
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Chemical Changes in Matter
In this matter and chemical changes worksheet, students write symbols and formulas for 2 chemical reactions. They write words for 1 chemical reaction given in symbols and formulas. They draw a diagram representing a chemical reaction and...
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Balancing Equations
In this balancing equations worksheet, students balance 8 equations using the proper coefficients. They also write the chemical formulas and balance 8 equations given the reaction in words.
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Physical and Chemical Changes-Notes
In this physical and chemical change worksheet, students watch a movie called the "Brain POP" about property changes and fill in the blanks to complete 8 sentences which are examples of chemical and physical changes.
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Mixtures, Solutions and Matter
In this mixtures, solutions and matter worksheet, students are given 12 terms and they cut out 12 definitions to match with the terms. Topics include types of mixtures, types of matter such as atoms, molecules and compounds and solutions.
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The Great Atomic Debate
In this atomic theory worksheet, students write a skit given a story line using Aristotle, Democritus and Dalton. They are given internet sites to find information about the facts and ideas of these past contributors to science.
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The Dalton Model
In this Dalton worksheet, learners read about John Dalton and his contributions to understanding the atom. Students are given sample data for Dalton's experiments and they answer questions about the data in his experiments.
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Inside an Atom
In this atom worksheet, students read about the history of the discovery of the atom. Students write a story, poem, song or other creative project in which they shrink to an incredibly small size and are trapped in a carbon atom.
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Analyzing the Bohr Atom
In this Bohr atom worksheet, students complete a table with the number of electrons of the element, the electron configuration, the mass number, the number of protons, the number of neutrons, the element, the symbol and the isotope...
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Interpreting Chemical Formulas
In this chemical formulas worksheet, students determine the number and type of each atom and the total number of atoms for the given formulas. Students complete 10 problems.
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Balancing Equations
For this balancing equations worksheet, students balance ten equations by placing the proper coefficients in front of reactants and products to balance the number of atoms.
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Balancing Equations Challenge
In this balancing equations worksheet, high schoolers identify the number of atoms in given molecules and compounds and they balance ten equations by placing the proper coefficients in front of the reactants and products.
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Candy Compounds
In this compounds activity, students are given a bag of colored gumdrops that represent specific atoms. They construct ionic and covalent bonds with gumdrops using the key provided and the compounds to build. They fill in a chart with...
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Balancing Equations Practice
In this balancing equations worksheet, high schoolers identify subscripts and coefficients in compounds, they identify the total number of each type of atom in compounds and they practice balancing equations.
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Integrating Technology: Seeing Atoms: STM
In this atom worksheet, students learn about the scanning tunneling microscope and answer questions about its use, how it works and its ability to see electrons in atoms.
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Main Group: Properties and Reactivity
In this main group learning exercise, students apply their knowledge of the organization of the periodic table to correctly answer 30 multiple choice questions. Students relate information about the properties of the different groups and...