SAT / ACT Prep Online Guides and Tips

If you don't have a high school diploma, you can still earn an equivalent credential by getting your General Education Diploma, or GED. Having a GED can open up many more opportunities for you, especially since most U.S. employers require employees to have a high school diploma or an equivalency.

If you don't have a high school diploma, you're a great candidate for taking the GED test and earning your GED. The exam is designed to determine whether you have the academic skills equivalent to those of a high school senior, so you'll be tested in four subject areas: math, language arts, social studies, and science.

That's a lot of information to know, which is why one of the best ways to study for the GED is by using a GED book. GED study books are designed to help you learn all the material you'll be tested on when you actually take the test.

In this article, we'll walk you through the best GED books on the market so you can choose the one that's right for you. Then we'll give you our top six study tips to help you ace your exam.

Let's get started!

Are you learning chemistry but don’t quite understand the solubility product constant or want to learn more about it? Not sure how to calculate molar solubility from $K_s_p$? The solubility constant, or $K_s_p$, is an important part of chemistry, particularly when you’re working with solubility equations or analyzing the solubility of different solutes. When you have a solid grasp of $K_s_p$, those questions become much easier to answer!

In this $K_s_p$ chemistry guide, we’ll explain the $K_s_p$ chemistry definition, how to solve for it (with examples), which factors affect it, and why it’s important. At the bottom of this guide, we also have a table with the $K_s_p$ values for a long list of substances to make it easy for you to find solubility constant values.

Getting mitosis and meiosis confused on a biology exam can cost you a lot of points, so it's important to keep these two cellular processes straight. In this guide, we break down mitosis vs meiosis, explain each of the processes, and lay out their similarities and differences so that you’ll be able to easily explain what each process does and how the two differ.

From its first repeating notes, Für Elise is instantly recognizable. It may even be the most famous melody ever written! But did you know that when Beethoven first drafted this short piano piece, he stuffed it in a drawer, never to be seen in his lifetime?

Curious how it went from forgotten trifle to universally known? Wondering what exactly makes it such an unforgettable earworm? Need some tips on learning to play this piece? Then keep reading for everything you've ever wanted to know about one of Beethoven's best-known masterpieces.

What are hydrates? If you're studying chemistry, you probably need to know what a hydrate is and the role it serves.

In this guide, we give a complete explanation of hydrates, including the hydrate definition, the three different types of hydrates, the rules you need to know to name hydrates and write out their formulas, and common hydrate examples you may have heard of.

Taking the AP Calc BC exam can feel like a lot of pressure: you want to earn college credit for your AP class, but the test is pretty tough! 

But there are a few things you can do to make the AP Calculus BC exam a little easier, like understanding the exam's format, the topics it covers, and how it's scored. Knowing what to expect before you take the AP Calc BC exam can help you earn a higher score!

To give you all the inside information you need about the AP Calculus BC Exam, we’ll explain the following in this article:

• What the AP Calculus BC Exam is, including who should take it
• The AP Calculus BC Exam format and topics
• How the exam is scored
• 5 tips for scoring well on the exam

The regularly scheduled date for the AP Calc BC exam is May 5th at 8:00 a.m., so you'll want to start preparing as early as possible. (Good thing this article has you covered, huh?) 

So let’s get started!

The AP Calculus BC Free Response section can be intimidating if you aren't prepared. You'll need to answer six multi-part questions to show your skills in numerous calculus topics. However, when you know what to expect from this section, you'll save yourself a lot of anxiety and can create a study plan to help you get a top AP score. In this guide, we explain everything you need to know about the AP Calc BC free response section, including what the format is, when you can and can't use a calculator, what sample questions look like and how to get a top score on them, and what study tips you need to keep in mind.

Are you thinking about taking AP Environmental Science but want more information on the course before you decide to enroll? Well, you've come to the right place! AP Environmental Science (also called AP Enviro or APES) is one of the most popular AP classes—but sometimes students don't know much about it before they enroll, which can make the class difficult and not very enjoyable.

So what is AP Environmental Science? In this guide, I'll explain what topics the course covers, show you some sample test problems, and discuss who should take the class (it might not be who you're expecting). After, I'll end with some tips for success should you decide to take AP Enviro. Let's get started!

Beethoven's Moonlight Sonata is one of the most iconic pieces of Western classical music. The arpeggiated, fantasy-like beginning of the first movement in particular has made its way into the collective cultural musical knowledge. But what should you know about the Moonlight Sonata? Read on to find out!

Need information on atomic radius trends? What's the trend for atomic radius? In this guide, we’ll clearly explain atomic radius trends and how they work. We’ll also discuss exceptions to the trends and how you can use this information as part of a broader understanding of chemistry.

If you’re taking chemistry, you’ll undoubtedly need to know the 7 strong acids. Read this guide to learn what the 7 strong acids are, why they’re important, and why they’re not necessarily the most dangerous acids you’ll be working with in the lab.

Before we jump into this list of the easiest college degrees, let’s get one thing straight: there’s no such thing as an easy bachelor’s degree. Whatever degree you choose to pursue, you’ll have to work really hard to complete it.

With that caveat out of the way, this article outlines the easiest majors, why they’re easy, and what your career outlook will look like if you choose one of these college degrees.

Since the AP Physics 2 exam is notoriously difficult, it should be comforting to know that your exam booklet will include a reference sheet that lists many of the conversion factors, formulas, and equations you’ll need to use during the exam. There’s a lot of information on the three page equations sheet provided on the AP Physics C exams, though, so it’s important to be familiar with the info included on the sheet and how to use it to your advantage during the AP test. 

That’s why we’ve developed the PrepScholar AP Physics 2 equation sheet. Our sheet contains all the formulas and information you’ll see on the official College Board Physics 2 equation sheet, plus explanations of the equations so you’ll know when to use them. This sheet is designed to be a study tool for you as you prepare for your AP Physics C exam.

In this article, we’ll help you gain a full understanding of what the AP Physics 2 equation sheet is, what formulas it includes, and how to use them on the AP exam. We’ll also give you 3 practical tips for using the AP Physics 2 formula sheet as a study guide, and a list of tips for using the equations sheet effectively on exam day.

Let’s dive in!

Out of all the rainbow of colors gemstones can come in, blue gemstones are the most popular. There are a huge variety of blue gems, from delicate pale aqua to richly saturated dark blue. Some stones are pure blue, while others include shades of violet, green, white, or gold.

This guide explores 11 of the most popular and beautiful gemstones. Each of these blue gemstones includes a chart with important characteristics, as well as average prices for each gemstone, how it is used in jewelry, and how it's unique from other blue gemstones.

If you are interested in purchasing a blue gemstone or jewelry that includes a blue gemstone but aren't sure which type of stone to buy, our guide will help you easily compare different blue stones. At the end of this guide, there is also a section on how to choose the best blue gemstone for you.

Looking into Enneagrams and want to know more about Enneagram Type 9? We're here to help! Read on to learn all about what Type 9s are known for, what they care about (and fear most), how to tell if you're a Type 9, the best Enneagram Type 9 careers, and how this type acts with friends, family, and when they're in love.