In this blood vessels quiz learning exercise, students complete an on-line quiz, clicking on questions and matching answers, scoring 1 point for each correct answer. A printed version is available.

Welcome to the fast-paced life of a gas atom! Learners gaze at gaseous atoms up close using a colorful interactive. They can highlight two atoms and observe their movements within their container or follow the dizzying path of one atom...

Does concentration affect the rate of a chemical reaction? Science scholars observe and control a chemical reaction in an interactive simulation. The resource allows pupils to add atoms to the reaction vessel and monitor the reaction's...

Does increasing temperature increase the rate of a chemical reaction? Junior chemists examine the effects of temperature on reaction rate using an engaging interactive. Pupils select the temperature of the reaction vessel, then observe...

Is your stoichiometry lesson plan just not adding up? Incorporate an exciting interactive to balance things out! Chemistry scholars manipulate the number of molecules added to the reaction vessel, then observe as bonds form and break as...

Ahh, the rules of attraction...intermolecular attraction! Introduce your chemistry crew to the other forces that influence the behavior of atoms and molecules alike with a simple interactive. Pupils push and pull polar and non-polar...

How much does the amount of gas in a sample affect its volume? Young chemists observe the number-volume relationship present in the gas laws through a colorful interactive. A handy meter records the volume as users observe a varying...

When molecules of hydrogen and oxygen are combined, how does water form? Science scholars observe changes in kinetic and potential energy during a chemical reaction in an interactive. The resource features easy controls that allow users...

Young chemists love it when colorful solid products appear in a reaction vessel! Scholars discover the products that form during halide ion tests through a hands-on activity. Users go online and apply chemistry knowledge and reasoning...

In this circulatory system worksheet, students label a diagram of the heart and answer 12 questions about the heart and the circulatory system.

Need a solid resource for teaching about states of matter? Science scholars go with the flow in a simple interactive that shows how intermolecular attractions determine a substance's phase. Pupils take control of the level of attraction...

In this biology worksheet, students read about the parts of both plant and animal cells and examine cell diagrams. They read about the function of cell parts before answering 11 online fill in the blank questions.

In this online interactive reading comprehension worksheet, students respond to 12 multiple choice questions based on Things Fall Apart. Students may submit their answers to be scored.

In this common English sayings worksheet, students complete multiple choice questions where they choose the correct meaning of common English sayings. Students complete 10 problems.

In this heart facts worksheet, students click on the links in the questions about the heart to find the answers to the questions and then come back and answer the questions. Students answer 16 questions total.

In this interactive online personal pronouns practice worksheet, students respond to 20 multiple choice questions using the appropriate pronoun case.

In this ocean instructional activity, students complete a 13 question multiple choice on-line interactive quiz about ocean currents. Prior knowledge is assumed.

In this vain, vein, and vane worksheet, students choose the correct word to complete each sentence. Students choose either vain, vein, or vein to complete 18 sentences.

In this color quiz learning exercise, students answer 12 online questions about color. The color questions are related to history, art, culture and mineral dyes.

In this ESL commonly confused words worksheet, students fill in blanks in sentences, selecting the appropriate word from choices given. Students may click on an answer button for immediate feedback.

In this duck facts worksheet, students read series of paragraphs from on online website about ducks. Students may then complete several related duck activities.

For this Dig Magazine archeology quiz, students answer 4 multiple choice questions about a variety of topics. Page contains answer and additional resources link.

Check Steve's cardiovascular health before he starts filming his dangerous wildlife special. Following the activity, read more about the heart, and then take a quick quiz to check for understanding.