In this elements, compounds, and mixtures learning exercise, students answer questions about the properties of elements, mixtures, and compounds. Students identify the physical changes that is made to a substance to determine if it is an...

In this fresh air and air pollution worksheet, students click on the links in the questions about fresh air and air pollution to find the answers to the questions and then come back and answer the questions. Students answer 15 questions...

In this kidneys worksheet, students review the function of the kidneys including what happens when the kidneys stop working. Students also compare kidney function in fish, frogs, and kangaroo rats. This worksheet has 86 fill in the blank...

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....

In this chemical reactions instructional activity, students are given directions about three types of reactions and how to write balanced equations for each. They then are given ten practice problems to complete using the information given.

In this chemical reactions instructional activity, students read about the 3 types of chemical equations and how to write balanced ionic equations. Students are given 5 equations to balance, write the type of reaction, write the total...

In this biology worksheet, students answer 2 short answer questions related to HIV based on information provided. They color and label the different parts of a virus.

In this DNA worksheet, learners read about the DNA replication process, step by step. Then students complete 1 multiple choice and 4 short answer questions.

In this biology learning exercise, students identify the different discoveries and genetics to complete 12 short answer questions related to the topic.

In this solutions worksheet, students calculate the molarity and solubility for given reactions. Students work on dilution, precipitation, and titration reactions. This worksheet has 15 problems to solve.

In this worksheet, students will answer 4 fill in the blank statements about Mendelian inheritance and meiosis. Then students will use Punnett squares to answer three short answer questions. Students will match 8 genetics vocabulary...

In this chemistry chapter review worksheet, students examine their knowledge of equilibrium, Brønsted acid, and pH value as they respond to 25 short answer questions.

In this science worksheet, students examine the safety labels that are displayed in the laboratory and then are expected to complete the homework questions.

In this equilibrium worksheet, students answer 8 multiple choice questions but need to solve the problems in order to determine the answers. They include determining the concentrations of ions as well as the pH of solutions.

In this how HIV infects cells instructional activity, students read the given information about how HIV infects cells. Students explain the role of various structures in HIV infection. Students design a drug that might slow the rate of...

In this chemical reactions worksheet, students determine if solutions are acidic, basic, or neutral. Students give reactions' molecular equations and ionic equations. This worksheet has 14 problems to solve.

In this chemical reactions activity, students answer follow up questions to a lab where they were observing chemical changes in reactions after mixing products such as hydrochloric acid and sodium bicarbonate. They answer six questions...

For this acid-base worksheet, students calculate the pH of given solutions and determine if given solutions are acids, bases, or neutral. This worksheet has 3 graphic organizers and 4 problems to solve.

Sixty multiple-choice chemistry questions make up this comprehensive exam used for the 2001 US National Chemistry Olympiad. Every topic that you would expect to approach in a general chemistry class is queried on. You could easily use...

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...

Beginning biologists demonstrate their grasp on cellular respiration, photosynthesis, and energy flow though ecosystems when completing this worksheet. Fifteen multiple choice and short answer questions test their knowledge. Because of...

Math really is just one big puzzle waiting to be solved. Show learners that math can be intriguing and provide them with visually engaging problems and puzzles. The focus is on solving simple equations and looking at expressions. 

In this DNA worksheet, students review vocabulary words associated with DNA, DNA replication, and gene expression. This worksheet has 13 matching questions.

In this chemistry activity, students balance each of the reactions presented using the periodic table to help. Then they predict the products of the reactions and write the net ionic equation. Students also write the empirical formulas...