Flame tests determine if there is a specific metal in a chemical compound. Young forensic scientists review their understanding of flame tests and hydroxide precipitates by solving puzzles. The timed review encourages mastery.

Connect the points to create a function. Using points given by the applet, pupils try to connect them to create a line that would pass the vertical line test. The resource keeps track of the number of sets the learner is able to identify...

Scientists identify elements by the color of flame they produce because each element is defined by exactly one line on the emission spectrum. By completing a series of puzzles, scholars reinforce their knowledge of the results of flame...

There's no easier test than the vertical line test. Learners drag a vertical line across the graphs of several relations in an interactive. They answer a set of challenge questions that focus on whether the graphs represent functions.

How did scientists measure the speed of incredibly fast things before the invention of high-speed photography? Scholars virtually perform ballistics tests to discover the process. They control the rifle type, bullet mass, and target...

The anode, the positive electrode, attracts negative charges, which is why we call negatively charged atoms anions. The interactive allows pupils to match six different anions to the associated properties when testing. Offering four...

If most gases are invisible, how do we know so much about them? Pupils practice associating the name, formula, testing method, and outcome for four common gases using an interactive. Users build on the content of their first puzzles to...

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...

What do vertical lines have to do with functions? Individuals slide a vertical line through four different graphs. They use that vertical line test to determine if the graphs represent functions.

How can mineralogists tell a diamond in the rough from a chunk of table salt? Science scholars find out through an interactive that demonstrates the characteristics of minerals used for identification purposes. Topics include hardness,...

Ninety multiple choice questions make up an interactive test designed to examine scholars' English language proficiency. After completing , learners have the chance to view their results, retest, or preview an answer key. 

In this reading test preparation worksheet, students read the stories and answer 36 multiple choice questions about them. This is an on-line interactive reading comprehension test.

In this test preparation online worksheet, students read 8 sentences and type a "V" in the box if the line is correct. They complete a paragraph using the correct words from 37 sets of multiple choice answers.

How much do you know about microbes and our understanding of pathogens? A quick 15-question quiz tests a broad range of information related to microbes. The interactive presents a score at the end, providing a great opportunity to review...

In this area worksheet, students complete a ten question multiple choice test by finding the area of various geometric figures. This is an interactive worksheet.

In this factorization pre-test learning exercise, students solve ten multiple choice questions by finding the least common multiple. This is an interactive learning exercise.

Why are car manufactures required to install seat belts and airbags; do they really make that big of a difference? Scholars use a simulator to determine the amount of force dissipated by a seat belt and airbag in a head-on crash. This is...

Learners complete a virtual lab to test for a corn mold that can lead to dangerous toxins. They walk through a detailed step-by-step procedure then see their findings. Throughout the activity, they learn how to use lab tools and practice...

In this 4th grade English/Language Arts standardized test practice activity, 4th graders read 2 fictional selections and respond to multiple choice and open-ended questions regarding the pieces. Students also read 2 non-fictional...

In this online interactive standardized test practice worksheet, learners answer 48 multiple choice questions regarding reading comprehension and language arts skills. Students may submit their answers to be scored.

In this online interactive standardized test practice worksheet, students answer 48 multiple choice questions regarding reading comprehension and language arts skills. Students may submit their answers to be scored.

In this online interactive standardized test practice instructional activity, students answer 32 multiple choice questions and 3 short answer questions regarding reading comprehension and language arts skills. Students may submit their...

Finding a fraction of a number is just multiplication in disguise. Young mathematicians can interact with this lesson to practice using multiplication to find a percent of a whole number. The narrator goes over how to put the number over...

This reading comprehension worksheet, modeled after the SAT, includes a passage written by a sociologist and 8 multiple choice questions. Ten minutes is allocated for this practice test.