Learners explore simple and compound machines. In groups of four students, they design a compound machine using K'NEX that has a stated purpose and consists of at least two simple machines.

In this classifying matter worksheet, students create a concept map to show the relationships between given terms such as elements, matter, substances and solutions.

In this chemical reactions worksheet, students name the reactants and products, balance the equation, calculate the molecular weight of the reactants and products, and classify each reaction type. Students fill in a table of solubility...

Eighth graders read and interpret the Periodic Table. They also make decisions on how to group and arrange different kinds of matter and draw the structure of atoms of pure elements. Finally, 8th graders contrast and compare basic...

In this atoms worksheet, students calculate the formula mass for chemical compounds. This worksheet has 12 problems to solve.

In this naming acids worksheet, students are given a chart with polyatomic ions and acid names with oxidation states, prefixes and suffixes. They use the chart to help name the eighteen given acids.

In this fireworks worksheet, students read about pyrotechnics and the chemical make-up of fireworks. They are given a chart of elements and the colors they emit. Students answer three critical thinking questions about fireworks and their...

In this matter worksheet, students answer ten questions about matter including the phase of matter, mixtures and how they are different from compounds, the physical and chemical properties of matter and the difference between homogeneous...

In this chemistry review worksheet, students answer a variety of questions about matter, elements, the kinetic theory, chemical and physical properties and the distillation process. They complete a concept map about matter.

Explain the properties of water. Identify the properties of water that make it a polar molecule Describe hydrogen bonds and how they differ from covalent bonds Discuss the differences between hard water and soft water Compare the heat of...

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...

There are 17 multiple choice questions on this periodic table test. The focus is on properties of the elements by group and period. The exam is not formatted well, making it a little difficult to read. There is also a typographical...

There are so many topics touched upon in this Jeopardy-style science game, that it is difficult to classify! The categories include electricity, matter, ecology, earth and space, and scientific investigation. This would best be used at...

Students explain how radioactive decay occurs. In this physical science lesson, students simulate radioactive half-life through an experiment. They graph their data and share their results in class.

You matter—unless you multiply yourself by the speed of light squared, then you energy! Scholars learn about matter, energy, the elements and so much more using an informative presentation. Completing the included worksheet creates a...

The ionic formula for banana would be BaNa2. Scholars work their way through four puzzles reviewing ionic formulas. Each puzzle requires scientific knowledge as well as logic and problem-solving skills.

Learners explore atomic measurement in the first activity in a series of 36. Through readings, activities, and questions, classes review standard SI units, learn about Avogadro's constant, and use it to help them calculate moles. They...

Nitrogen is an essential element for productive farming. An interactive lesson explores the chemical makeup of different fertilizers and their corresponding nitrogen content. The interactive challenges individuals to complete...

In this naming and writing chemical formulas instructional activity, students are given directions and practice writing simple chemical formulas. They identify positive and negative valence elements, they name nonmetal compounds, they...

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

For this molecular mass and percent composition worksheet, students complete 5 sections where they determine atomic masses of given elements, they determine formula masses for given molecules, they find the molecular mass of 12 molecules...

In this compounds activity, students review the rules for naming compounds. Students apply these rules by writing the chemical name or formula for the 50 compounds given.

In this formulas worksheet, students solve eight problems and are required to write the empirical and molecular formulas given percentage of elements or quantities in mass.

In this elements and bonding activity, 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.