Curated OER
Difference One Proton Makes
Chemsitry aces learn that protons are located in the nucleus and the number of protons in the nucleus determines the atomic number of an element. In this lesson, they compare materials made up of a single element and other materials...
I Teach Bio
A World-Famous Table
Guide first-time physical science learners through the periodic table of elements by having them record the atomic number, atomic mass, number of electrons, number of protons, number of neutrons, or the name of an element when given it's...
Curated OER
Structure of the Atom
High schoolers identify the location and change of the subatomic particles of an atom. They name the three subatomic particles. Students review what they can recall about subatomic particles. They are given a worksheet on the...
Curated OER
Subatomic Particles
In this atoms worksheet, students complete a graphic organizer comparing the properties of the 3 subatomic particles. Then students complete 1 short answer question.
Curated OER
Why Do Atoms Combine?
In this subatomic particle worksheet, students will read the important discoveries throughout history of the neutrino. Based on this information, students will complete 4 short answer questions.
Curated OER
Elements and Ions Worksheet
In this elements and ions activity, students complete a table given an element, the symbol, or the number of subatomic particles and they must complete the rest of the table. The do the same for five ions. They also write formulas and...
Curated OER
Atomic Structure
In this atomic structure learning exercise, students select answers to 8 fill in the blank questions on subatomic particles from the drop down box.
Curated OER
Significant Figures and Conversions
In this chemistry learning exercise, students identify how many significant figures are in each of the numbers listed. Then they determine the velocity in meters per hour for a subatomic particle. Students also determine how many...
Curated OER
Chemistry E3 Lesson Plan
Ninth graders perform a series of experiment to investigate heat transfer and phase changes. In this physical science lesson, 9th graders identify and calculate the different subatomic particles. They explain the importance of scientific...
Curated OER
Protons, Neutrons, and Electrons
Using the periodic table of elements, young chemists fill in a chart of isotopes to show the atomic number, mass, charge, number of protons, number of neutrons, and number of electrons. The chart is followed by 11 questions that...
Curated OER
Up and Atom
"Up and Atom" is a mini-unit introducing middle-schoolers to the wonders of elements. Participants draw atom models, examine the periodic table, compare samples of metals to nonmetals, identify unknown elements, and more! The beginning...
Biology Junction
Chemistry Crossword
Scholars complete a crossword puzzle in this chemistry learning exercise with 20 questions about chemistry concepts like atoms and chemical reactions.
Curated OER
Chemistry: Atomic Number and Mass Number
All you will find here is a simplistic chart of 17 elements (hydrogen is repeated) for chemistry beginners to fill in. They list atomic number, mass, and the numbers of protons and electrons. There are three critical thinking questions...
Curated OER
Development of the Atomic Theory
In this atomic theory activity, students complete a paragraph describing the development of the atomic theory by filling in the blank with 21 terms.
Curated OER
Mystery : Structure of the Atom-A Case for Indirect Evidence
Learners investigate the structure of the atom through hands on activities. In this atomic structure instructional activity, students perform 4 activities showing indirect evidence of the structure of the atom and the parts of the atom....
Curated OER
Ions and Subatomic Particles
In this ions worksheet, students complete a graphic organizer by filling in the number of protons and electrons plus the charge of the given ion.
Concord Consortium
Exploring Electron Properties
Bring a historic chemistry experiment to life in your classroom! Introduce pupils to Thompson's ground-breaking discovery of the electron through a cathode ray simulation. The resource allows users to study the behavior of both electrons...
Curated OER
Defining the Atom
Words, words, words! This presentation uses plenty of them to define the atom, outline the history of what we know about atoms, and explain atomic and mass numbers. That's all! Informative, but not interesting, this slide show would be...
Curated OER
What do Atoms Look Like?
In this atom worksheet, students answer 31 multiple choice questions about the structure of atoms, the periodic table, the reactivity of elements, orbital diagrams and the families of elements.
Curated OER
Atoms and the Periodic Table
Familiarize your new chemists with the periodic table of elements by contemplating this collection of slides. Element groups are identified, atoms are defined, and nuclide notation is explained. Isotopes are also mentioned. The topics...
Curated OER
Atoms, Elements, Molecules, and Compounds
In this elements learning exercise, students review the Bohr model and define negative and positive subatomic particles. Students compare molecules and compounds. This learning exercise has 11 short answer questions and 4 problems to solve.
PhET
Molecule Shapes: Basics
In molecules, bonds rotate about the nucleus due to the repulsion of subatomic particles. In a simulation, learners manipulate the bonds of a molecule to meet the atoms' needs. They can then see the specific molecular shapes of five...
Curated OER
Atoms, Ions and Formula Basics Make-up Test
Using a copy of the periodic table, chemistry test takers fill in a chart with element name, chemical symbol, atomic number, atomic mass, and numbers of subatomic particles. They define subatomic particles, draw atom models, explain...
Curated OER
Electronic Structure of Atoms
In this chemistry worksheet, students complete 22 problems and fill in the blank questions on quantum numbers, electron configuration and hybridization of orbitals.