Science Review of Storms on the Sun

Overview Eruptions of light and other forms of radiation from the sun affect conditions on and near Planet Earth, causing geomagnetic storms, solar radiation storms, and radio blackouts.  Some types of “storms on the sun” include solar flares, coronal mass ejections, high-speed solar wind, and solar energetic particles. Solar Flare Solar flares come from the […]

Science Review of the Eight Senses

Overview The five senses of vision, hearing, touch, taste, and smell are familiar.  However, people have three more senses that are critical to everyday life –vestibular, or sense of balance; proprioceptive, or sense of where one is in space; and interoceptive, or the body’s sense of what is going on internally.  Although those senses are […]

Math Review of Solving Systems by Addition

Overview Besides solving systems of equations by graphing and substitution, systems of equations can also be solved by addition.  Math students can choose the best method for the problem at hand.  Sometimes this process is called “solving systems of equations by elimination”. Using Addition Although some systems of equations can be solved by substitution, other […]

Math Review of Solving Systems by Substitution

Overview One of the ways to solve systems of equations is by graphing the equations.  However, graphing the equations is not always the most accurate method to solve them.  If one variable in a system is represented in terms of the other variable in the system, the systems can be solved by substitution. Using Substitution […]

SAT Review of Multiple-Choice Questions

Overview The SAT consists mostly of multiple-choice questions, except for the essay and some mathematics questions that require an answer grid. Each multiple-choice question has 5 alternative answers. Four of them are distractors, and one alternative is the correct answer. Following Directions It is very important to follow directions exactly when taking the SAT or […]

Math and Physics Review of Curling and Bobsled

Overview Curling and bobsled are winter sports that rely on friction against an icy track or surface. In curling, a special stone is moved by a combination of momentum and friction against a sheet of ice. Team players use a variety of strategies to determine which of their stones will score the highest. In bobsledding […]

Math Review of Representing Solid Figures

Overview Three-dimensional solid figures can be represented by the two-dimensional pattern of polygons that create them. The pattern, called a net, is a visual representation that illustrates the formula for the surface area of the three-dimensional figure. If the net were folded, it would produce that figure. Representation of Cylinders The net for a cylinder […]