AP biologists or college-level botanists consider in-depth details of the photosynthetic process. They examine the structures in a leaf and the roles that they play. They label neat and colorful diagrams of photosystems and electron...

A variety of topics including reaction rates, combustion reactions, periodic trends, and ionization reactions are included in this exam. Test takers also practice calculating empirical and molecular formulas of compounds.

Sixty multiple choice questions cover the entire gamut of chemistry concepts. This is the local section of the U.S. National Chemistry Olympiad, where your chemistry candidates take a shot at entering the national competition. They...

In this Lewis structures worksheet, high schoolers are given 6 compounds and they write the Lewis structure for each. They identify compounds with resonance structures and include the resonance structures if present.

With a professional appearance, this presentation introduces advanced biology learners to the history and structure of the DNA molecule. The details included in this resource are definitely more in-depth than what you would expose a...

Students discuss how changing the structure of atoms and molecules can change the properties of a substance. They brainstorm and review their own examples of phase change with the help of a phase change diagram. Students describe the...

High schoolers will draw Lewis structures of common covalent compounds using a Chem 3D computer program. They will predict the shapes of the molecules, complete a data table, and formulate rules for predicting shapes of molecules. In the...

In this biology worksheet, students identify and describe the three types of RNA, messenger, transfer, and ribosomal RNA. Then they write the key features of molecules of RNA for each form.

Once I told a chemistry joke, but there was no reaction. Get young chemists involved in changes and reactions with a presentation that begins with physical and chemical changes and chemical reactions. It moves on to chemical...

Do your chemistry scholars know their esters? Introduce the class to the nomenclature and structural formulas of common esters through thought-provoking games. Individuals or pairs of pupils match the name with the formula before using...

Is your chemistry class frustrated by the multitude of representations of organic molecules? Add some challenging puzzles to an otherwise ho-hum organic lesson and let the fun begin! The second of a two-part activity focused on basic...

It's truly amazing how life is sustained through the complicated interactions of different organic compounds. As young biochemists complete this worksheet, they demonstrate their ability to identify these essential molecules as well as...

In this compounds worksheet, students draw the Lewis structures for the given compounds, being sure to show the bond angles and molecular shapes. This worksheet has 6 problems to solve.

In this molecular model worksheet, students use a molecular model kit to construct 13 different molecule models. After constructing the molecules, the students complete 32 short answer questions.

In this organic molecules worksheet, students solve four problems. They draw Lewis structures, they identify functional groups in a molecule, they draw resonance structures and they provide details of bonding within a molecule.

In this Lewis structures worksheet, students are given molecules that they must draw Lewis structures for and identify the total number of electrons. They also calculate charges on molecules, determine stability and draw the Lewis...

In this Lewis structures worksheet, students read about drawing Lewis structures and how to identify valence electrons. They draw Lewis structures for eight given compounds.

Young scholars brainstorm what matter is and how they define it. They construct a water molecule with marshmallows and toothpicks. In addition, they watch videos to explore the use the idea of nanoscience to investigate the properties of...

In this chemistry activity, students draw the Lewis structures of 9 compounds and polyatomic ions, identify their molecular shapes and polarity.

In this chemistry instructional activity, students draw the Lewis structures of 11 compounds and polyatomic ions. They calculate the formal charge of each atom.

In this nephron instructional activity, students color the parts of the nephron and answer five questions about the structures and functions of the parts of the nephron.

In this chemical bonds activity, students review the different types of bonds, Lewis dot structures, ions, and molecule shapes. This activity has 10 matching, 17 multiple choice, and 3 drawing questions.

Blend chemistry with cooking in this exploration of polymers, carbohydrates, and food science. Experimenting with gelatin produces concrete examples of the bonding and ploymerization discussed in the lesson. Copious, comprehensive...