In this balancing equations learning exercise, students 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.

In this balancing equations activity, students balance ten equations by placing the proper coefficients in front of reactants and products to balance the number of atoms.

In this mass and moles learning exercise, students solve fifteen problems which include converting between moles, mass, atoms, molecules and formula units.

In this moles worksheet, students convert measurements of moles to mass, measurements of mass to moles, measurements of moles to atoms or molecules and measurements of atoms or molecules to moles.

Fifth graders investigate atoms. In this atom lesson plan, 5th graders investigate the parts of an atom. Students explore atom numbers and determine the number of electrons is in each atom.

In this atom worksheet, students read about the parts of the atom and how atoms combine into molecules and compounds. Students learn how to read a periodic table. This worksheet has 20 fill in the blank and 10 matching questions.

In this atom worksheet, students read about the structure of the atom including its subatomic particles and John Dalton's theory of the atom. Students also read about the differences between atoms, molecules and compounds. They answer 30...

In this atom worksheet, students fill in three charts using the periodic table to identify atomic number, atomic mass, number of subatomic particles and the element's symbols. Students draw an atom and it's subatomic particles as well as...

In this moles worksheet, students define a mole and convert grams to moles or moles to molecules. Students convert specific mass of compounds to moles. This worksheet has 1 true or false, 6 short answer, 3 fill in the blank, and 15...

In this moles worksheet, students calculate the molar mass of compounds. Students also determine how many moles of a compound are in a certain mass of that compound. This worksheet has 8 problems to solve.

In this atoms instructional activity, students calculate the number of moles, molarity, grams, or formula units for 20 different problems.

In this gas laws activity, students review how the gas laws effect pressure, temperature, and volume of gases. This activity has 9 problems to solve.

In this molecule worksheet, students will use a diagram of a water molecule to see how many electrons and protons the molecule has and use a glycerol molecule diagram to discover carbon atom bonds. 5 fill-in-the-blank questions.

In this periodic table activity, students use the list of coded letters and clues that correspond to the represented elements in the first four periods of the periodic table to complete the chart at the bottom of the sheet. They...

In this atoms worksheet, students will review the characteristics of elements, atoms, and isotopes. Then students will compare the difference between ionic and covalent bonds. Finally, students will balance a chemical equation. This...

Middle schoolers perform varied activities as part of a layered curriculum unit: They write and perform a skit that outlines the evolution of the model of the atom. The script is submitted to the teacher for review before performance.

In this IBEX satellite worksheet, students read about the Energetic Neutral Atoms that are detected by the IBEX satellite. Students use a given hypothetical data string to determine the number of particles detected and create an 'image'...

In this Big Bang Theory worksheet, high schoolers read about how scientists simulate the original Big Bang conditions using atom smashers. Students solve 4 problems given about the Big Bang. They find the average collision energy of...

Students 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.

In this elements worksheet, learners complete a crossword puzzle by figuring out the vocabulary words associated with the 25 clues given.

The need for a counting unit is mentioned as you introduce the mole to your young chemists. Use this presentation to explain Avogadro's number and describe the incredible quantity it represents. Lecture notes are included for most of the...

In this electron worksheet learners find values for the given letters including their subshells and in which orbital it occurs. 

In this thermochemistry worksheet, students indicate whether the given processes are endothermic or exothermic reactions. Students complete the phase change diagram as well as define a given set of vocabulary words. Students calculate...