Exercise those mental math muscles! This worksheet contains 10 addition and 10 subtraction problems which require learners to compute sums or differences in their heads. A quick review at the top of the page provides a strategy based on...

We know about the light spectrum, the age spectrum, and sound spectrum, but do chemical reactions also occur on a spectrum? Young scientists experiment with partial reactions on a spectrum and observe the color changes. Then, they...

Acids and bases have a love-hate relationship. They balance each other so nicely, but they are complete opposites! Learners use these concepts and titration to calculate the molar mass of an unknown substance. The experiment...

In this evaluating expressions worksheet, students solve and complete 50 various types of review problems. First, they complete each sentence and define the listed terms. Then, students evaluate each expression for the given values. They...

A full-fledged practice final prepares pupils for their general chemistry final exam. If they complete these 57 multiple-choice questions correctly, they will be well-prepared. Note: even though the questions are multiple-choice, there...

In this subtracting and comparing fractions word problem worksheet, students use two recipes to solve and explain the differences. Students solve six word problems.

Part lesson, part instructional activity, this handout walks math minors through the comparison of two decimal numbers. It teaches them the trick of tagging zeroes in to get the numbers to be the same length to better understand place...

Middle schoolers identify proper, improper fractions, and mixed numbers.  They reduce fractions to their lowest terms. They add and subtract fractions with different denominators, and multiply and divide fractions, as well as...

Learners investigate the concept of the number one million. In this number concepts lesson, students read the book How Much is a Million? and brainstorm questions, such as "how many leaves are on a tree" and "how many hairs are on your...

Advanced economics pupils analyze a series of graphs, data sets, and profit scenarios all related to monopolies and marginal revenue. They read through the background information, complete a graph using the data provided, and justify...

Analyze functions by their shape and equation and identify decay and growth based on the equation given. Learners graph their exponential functions and differentiate it using the logarithmic versus the exponential function.

Learners study plots and use a Live Access Server to generate plots.  In this temperature lesson students examine the process of incoming and outgoing radiation. 

Students compare graphs of their data that was generated on a NASA website.  In this seasons lesson students complete a lab activity. 

Some background information about density and Newton's Laws of gravitation and motion assist pupils in the following experiment. The procedure will help them further their understanding of gravity, pendulums, and a drop-ball experiment....

Take a trip to Great Britain with this fun reading lesson! Young learners read an article about many famous attributes of Britain - 101 of them, to be exact - and finish several comprehension and grammar activities about what they have...

In this math PowerPoint, the process of adding fractions with unlike denominators is broken down into a logical, easy-to-follow sequence of steps. Definitions and examples of multiples, least common multiple, and least common denominator...

Using Wolframalpha graphing capabilites, algebra learners graph polynomials with degrees of three and larger. They identify the roots and graph each polynomial, predict zeros and shapes of graphs, and validate their understanding through...

Discover the stories behind each of the thirteen stripes on the American flag with this straightforward presentation. Complete with learning objectives, discussion questions, and solid information about each of the original thirteen...

Using footballs, basketballs, tennis balls, and more, learners conduct experiments to illustrate Newton's Laws of Motion.  The experiments are conducted outside, and require them to throw, kick, and hit a variety of balls. Your...

If you need a homework assignment for your chemistry class, add this one to the possibilities. This assignment is composed of six questions including the identification of oxidizing and reducing agents, recognizing different redox...

Working in groups, the class will use what they know about whole number operations to solve a real-world problem involving a number line. They will focus on using the number line to correctly label the placement of whole numbers,...

Beginning physics scholars interpret two graphs depicting position versus time. For each graph, there is a series of questions to answer. The exercise is basic, but beneficial. Consider using it as an assessment of understanding after...

Displacement is a foundational concept for physics pupils. If they are having trouble discerning it from distance, this activity can help clear things up. The first page is essentially a piece of graph paper. It has a compass rose and a...

Simple momentum computations and more complex collision computations can be found on these two worksheets. All of them can be answered by choosing from five possibilities. The first worksheet contains nine problems to solve, while...