So, you've headed out into the wilderness and forgotten your camp stove? What's a chemist to do? Solutions may be the solution! Scholars use a virtual lab workbench to create solutions that would be capable of heating food, courtesy of a...

Buffers don't just magically appear in the stockroom when you need them! Give learners a crash course in buffer basics using an interactive lab assignment. Individuals are tasked with creating a buffer with a certain pH that will react...

Mathematicians answer five questions about percents, ratios, and proportions with help from an interactive graduated cylinder. Question types include multiple-choice, fill-in-the-blank, and discussion. 

Many scholars confuse velocity and acceleration even after they correctly solve basic problems. Using an interactive, part of a series on vectors and projectiles, with immediate feedback focuses their attention on the up or down...

Assume the role of Canadian border control! The percent of alcohol and density of a solution are related. Young scholars use this fact to classify solutions by their alcohol content to determine if they meet Canadian import laws.

In this calculus worksheet, students solve problems using the first and second derivatives. They define the behavior of the function based on the derivative. There are 11 questions with an answer key.

In this Algebra I learning exercise, 9th graders convert percentages to decimals and fractions. The one page interactive learning exercise contains ten problems. Answers and a hint are provided. 

DNA writes 64 different words but only codes for 20 different amino acids. Budding scientists learn about where each of these numbers come from and why they aren't equal with an online interactive. The resource explains the research, the...

In this calculus worksheet, students perform implicit differentiation to take the derivative. They solve function explicitly of x. They differentiate between implicitly and explicitly. There are 16 problems with an answer key.

In this trigonometry word problem learning exercise, learners calculate how close a ship comes to a lighthouse.  The solution with explanation is provided.

In this problem solving worksheet, students solve for the amount of the fortune a father starts with before he divides it among his children, given a set of clues.  Students must also solve for how many children the money is divided...

Many upper level tests require pupils to interpret written descriptions of scientific principles. Scholars practice the skill by working through three levels of difficulty. Each question covers kinetic energy, gravitational potential...

In this Amazon.com worksheet, students read the article, answer true and false questions, complete synonym matching, complete phrase matching, complete a gap fill, answer short answer questions, answer discussion questions, write, and...

In this noise pollution in the oceans learning exercise, students read the article, answer true and false questions, complete synonym matching, complete phrase matching, complete a gap fill, answer short answer questions, answer...

In this Ivory trade worksheet, students read the article, answer true and false questions, complete synonym matching, complete phrase matching, complete a gap fill, answer short answer questions, answer discussion questions, write, and...

Upper graders change a set of 10 fractions with denominators of either 10, 100 or 1,000 to decimals. Answers and hints are available on-line; a reference web site for additional resources is given.

In this general mathematics learning exercise, students multiply fractions, including whole numbers and mixed numbers.  The one page interactive learning exercise contains five problems.  Solutions and answers are provided. 

In this Algebra I worksheet, 9th graders solve word problems in one variable that are based on relationships in numbers.  The one page worksheet contains thirty problems.  Answers are not provided. 

In this sequencing and "nth" term instructional activity, learners solve 8 problems, writing next terms in sequences, giving expressions for "nth" terms and finding 20th terms. Answers and hints are available on-line; a reference web...

In this math puzzle:  three cubes worksheet, 8th graders solve the puzzle by making cubes with 2 digit numerals on each side, then finding 3 ways for 3 sides to add up to 100, the answer is available online.

In this reading worksheet, students read each line and at the end of the line they write "correct" if the line is correct and if there is a word that should not be there, they write that word. Students complete this for 15 lines and then...

In this two digit numbers instructional activity, students complete problems where they write words into two digit numbers. Students complete 10 problems total.

In this words to numbers worksheet, students read the word and then write the number that it represents for numbers 1 through 10. Students complete 10 problems.

In this algebra learning exercise, 9th graders are asked to rewrite word problems using algebraic equations in one variable. There are other links on this page.