Biology learners should understand a few chemistry basics. Here is a worksheet that introduces them to the concepts of chemical reactions, molecular bonding, and the unique combination of properties that make water vital to life....

A simple and sweet activity shows students how important smell is in interpreting flavor. Pairs of pupils hold their noses and eat Life Savers®, only to find that they can't identify the flavors until they let go. You will appreciate...

A lively presentation presents general facts and history of nucleic acids in a note-taking format. Every slide contains colorful photos or graphics to illuminate and engage. Biology aces learn about the function and structure of...

The 2005 version of the Regents High School Examination in the area of ecology is as comprehensive as previous years' exams. It consists of 40 multiple choice questions on everything from the structure of DNA to the interactions within...

In this Lewis structures worksheet, students draw molecular structures for twelve molecules. They determine the number of bonds in the molecular formula by following step by step directions given on the worksheet.

This is an online exercise in which chemistry learners answer a series of multiple choice questions about bonding. Topics addressed include ionic and covalent bonds, electronegativity, ions, valence electrons, resonance structure, and...

A kaleidoscope is constructed using polarizing polymer paper and then low-density polyethylene, high-density polyethylene, and polypropylene are all melted onto individual glass slides and examined through a microscope. The intent is to...

In this VSEPR theory activity, students draw the Lewis structures for 5 molecules, they build the molecule, sketch the structure, show the bond angles and name the molecule. They also answer a question about the VSEPR theory and what the...

A great review of the structure and function of carbon-based molecules important to life, especially with relevance to humans. The chemistry behind the combination of polymers and the breakdown of bonds is covered. Valuable content...

Individuals explore solubility by modeling how water dissolves salts. They then view a video and compare how well water and alcohol dissolve salts, relating their comparisons to the structure of each molecule. 

Everything can be reduced to atoms. The first installment of a six-part Mixtures and Solutions unit focuses on the building blocks of matter. Scholars review basic atomic structure, including protons, neutrons, and electrons, in...

Molecules to the Max! refers to a movie released in 2009 about the world of atoms and molecules. A helpful discovery guide provides five posters on science topics typically covered at the middle school level. It also explains the...

Let's get a closer look at DNA and other molecular structures. The first lesson in the series of four introduces a variety of imagining techniques that engineers and scientists use to visualize molecular structures. The resource presents...

Enzymes proofread DNA, reducing the error rate to one in one billion base pairs. Learn about the important process and so much more with the help of a presentation. It opens with the history of DNA and the major scientific contributions...

Written for an introductory organic and biochemistry course, this exam will challenge your class. They label functional groups and stereocenters on drawings of molecules, draw structures given the name, complete drawings of chemical...

What is space made of? It turns out that there are many compounds found in space! The 10th lesson of a science series provides a list of the compounds found in space and asks young scholars to research the characteristics of these...

In this VSEPR theory learning exercise, students build models of molecules using styrofoam balls and pipe cleaners to represent lone pairs. Students complete a chart for 12 molecules with valence electrons, Lewis structures, bond angles,...

In this molecules worksheet, students determine the Lewis dot structures for 25 given molecules and determine the physical properties of molecules based upon polarity and intermolecular interactions.

Looking for a versatile activity on organic chemistry? If so, you might consider this resource. This resource asks learners to identify organic molecules, match terms with their definitions, determine bond angles and hybridization of...

Food always gets attention! Model atomic structure using fruit loops to represent the subatomic particles. After building models, scholars create ionic bonds using their models. Finally, they use these concepts to create a periodic...

Three steps are needed to extract DNA from learners' inner cheek cells. The procedure and reasons for each step are explained. As enzymes work on the cells, a series of questions are answered regarding the structure of the DNA molecule....

You are what you eat, as they say! Are you more starch or more protein? Young scholars use their knowledge of each component to test different foods for their content. Using multiple indicators, individuals describe the protein and...

Who can grow the best crystals? Challenge class members to develop strategies for enhancing growth in the crystals. Through a lab investigation, learners study the properties of crystals and test the effectiveness of different...

In this matter worksheet, students calculate volume and partial pressure for gases, compare liquid and vapor phases, and review the characteristics properties of gases. This worksheet has 12 multiple choice and 3 problems to solve.