For this review of evolution worksheet, students complete 50 multiple answer questions on Darwin's theory and the history of life on Earth.

In this chemistry worksheet, students answer 50 multiple choice questions on stoichiometric calculations, the mole and chemical reactions.

For this gas laws review worksheet, learners solve pressure, temperature and moles of gases to answer 50 multiple choice questions.

In this chemistry worksheet, students answer 50 multiple questions on acids and bases. They calculate the pH and pOH of acid and bases solutions.

In this electrochemistry learning exercise, learners answer 50 multiple choice questions related to oxidation states, galvanic cells and redox reactions.

In this chemistry review worksheet, students answer 50 multiple choice questions on reaction kinetics. They identify the factors affecting the rates of reactions.

In this organic chemistry review worksheet, students complete 50 multiple choice questions on naming and identifying organic compounds.

In this math review worksheet, learners answer 50 multiple choice and true/false questions related to algorithms and has functions.

In this physics worksheet, students complete 50 multiple choice questions on vector addition. They calculate displacement and resultant vectors.

In this kinematics review worksheet, students complete 50 multiple choice questions on average speed, velocity and acceleration.

In this dynamics worksheet, learners calculate speed, acceleration and forces to complete 50 multiple choice questions on kinematics.

In this physics worksheet, students complete 50 multiple choice questions on physics. They determine the magnitude of work, energy and power.

In this linear momentum worksheet, students calculate force, impulse and momentum to answer 50 multiple choice questions. They identify elastic and inelastic collision.

In this rotational motion learning exercise, students calculate and answer 50 multiple choice questions related to the properties of rotating bodies.

In this oscillations learning exercise, students complete 50 multiple choice questions on forces, motion, periodic motion and simple harmonic motion.

For this gravitation worksheet, students complete 50 multiple choice questions on universal gravitation topics and Kepler's laws.

In this thermodynamics instructional activity, students complete 50 multiple choice questions on thermodynamics laws. They calculate energy in the system.

In this physics activity, students answer 50 multiple choice questions on properties of and behavior of magnetic fields and forces.

In this optics review worksheet, students complete 50 multiple choice questions on light reflection, diffraction and interference.

In this geometry learning exercise, students are given the side lengths of polygons and asked to calculate the perimeter, area and shaded region. There are 30 questions with an answer key.

In this Pre-calculus learning exercise, student’s knowledge of a wide variety of topics is assessed in this on-line review.  The one page interactive learning exercise contains fifty problems.  Answers are not provided. 

Students explore the idea of having Benchmarks to estimate the length of given objects. Students demonstrate acquired knowledge of the basic units of length by making reasonable estimates. Students create a personal benchmark.

Students make sensible estimates and check the reasonableness of the answers. Students write and solve problems involving decimal multiplication and division. Students perform calculations with time.

Fourth graders solve a dominoes word problem, calculating all the possible outcomes for a sequence of events. They discuss the problem, apply counting strategies, create a tree diagram, and write an explanation of how they solved the...