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Mighty Molecules
Students examine a PowerPoint production on molecules. Then they construct their own molecule and define what an atom, molecule, and matter is. They make a H2, HCI, and an H2O molecule. Finally, a drawing to accompany the actual model is...
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Chemistry Comes to Life
Although biochemistry of the human body is a vital topic, it doesn't have a chapter dedicated to it in many biology textbooks. If that's the case with your text, you can use this resource as a guide for designing your own lecture and as...
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Matter: Atoms and Molecules
Students investigate how information about the atom has been determined. In this atomic structure instructional activity, students draw what they think an atom looks like. They conduct Internet research about the types of atomic models...
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Atomic Structure and Quantum Theory
Students are introduced to the structure of an atom and Dalton's atomic theory through a short video and mini-lecture.  They also take a look at the weight of mass and become familiar with the idea of quantum theory
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Chemistry - Science 10
In this chemistry science worksheet, students identify the parts of a chemical reactions. Students name the major particles of the atom. Students apply knowledge about the atom, theories, and models.
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Atoms: The Building Block of Matter
Students 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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Exploring Atoms
In this chemistry worksheet, learners complete 29 fill in the bank questions about atoms based on the movie Exploring Atoms from the website www.brainpop.com .
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Using Moles to Count Atoms
In this atoms learning exercise, students explain why the moles is used as a counting unit for atoms and determine the molar mass of given elements. This learning exercise has 3 short answer and 4 fill in the blank questions.
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Electron Configurations and Orbital Diagrams
In this elements worksheet, students determine the electron configuration, orbital diagram for the highest sublevel, and the number of unpaired electrons in ground state atom for the given elements. This worksheet has 7 problems to solve.
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Science Multiple Choice Definitions Worksheets
For this science worksheet, students choose the multiple choice answer that best defines each of 15 science related vocabulary words.
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Empirical and Molecular Formula
In this formulas worksheet, students review how to write compounds in their empirical formula and molecular formula. Then students complete 4 problems.
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Elements
In this elements worksheet, learners write the electron configurations for given elements. Students describe ionization energy and electron affinity and the periodic trends for both. This worksheet has 20 short answer questions.
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Atoms or Molecules?
In this scientific investigation worksheet, learners follow the provided procedures to examine the chemical reactions of hydrogen and oxygen atoms and then respond to 1 short answer question.
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Chapter 16 Review- General Science
In this review  of general science worksheet, students classify examples of matter as mixtures or substances, homogeneous or heterogeneous mixtures, or elements or compounds. Students also convert several examples using the standard...
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Changing an atom
In this atoms worksheet, students add or subtract an electron, neutron, or proton from the given atom and then fill in what kind of element it is. Students fill in 4 blanks.
Creative Chemistry
Calculating the Number of Sub-Atomic Particles in an Atom
For this atoms worksheet, high schoolers compare sub-atomic particles' position, relative charge, and relative mass. High schoolers define mass numbers and atomic numbers. This worksheet has two graphic organizers and four short answer...
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How Atoms Work
Students explore the concept of atoms and how they combine to form molecules and compounds. In pairs, they read an article on how atoms work and discuss the main points. They draw atoms and write a paragraph about their elements.
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Chemical Bonding and Shapes of Molecules
For this chemical bonding worksheet, learners review the different types of bonds and calculate the number of valence electrons in molecules. This worksheet has 11 matching and 15 multiple choice questions.
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Differentiate Elements, Compounds, and Mixtures
Learners examine the differences between elements, compounds and mixtures.  Using diagrams, they compare and contrast atoms and molecules and describe various chemical reactions.  They distinguish the differences between ionic and...
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Atomic Theory, Structure, and Symbols
In this atomic theory worksheet, students review the observations that led to the conclusion of the atom having a positively charged nucleus. Students compare atomic number and mass number and explain how the discovery of subatomic...
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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.
Creative Chemistry
Electron Arrangement First Ionisation Energies in Group II and Period 3
Students complete two graphic organizers in this ionization instructional activity by filling in the proton number for given elements. Then, they create two graphs plotting the first ionization energy against the proton number.
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The Atoms Family-Atomic Math Challenge
In this atoms instructional activity, middle schoolers determine the number of protons, neutrons, electrons, the atomic mass and the atomic number of 16 elements.
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Ionic bonding
Learners explore ionic bonding. They draw examples of ionic bonding and explain the activities of the electrons of the elements. Students use paper plates and candy to draw electron configurations of given atoms.