SAT / ACT Prep Online Guides and Tips

Cells are the building blocks of life. All living things have cells - from small, single-celled organisms like bacteria to large, multicellular organisms like humans.

Cells have specific functions that help keep these varied creatures alive and kicking. In order to make these functions happen, chemical reactions occur within cells. Oftentimes, these chemical reactions are sped up by a special kind of protein called an enzyme.

In this article, we’re going to answer a few questions: what are enzymes, what are enzymes made of, and what types of enzymes exist.

In writing, an author’s tone is his or her general attitude or feelings about the work’s subject matter and audience. Tone words are used to help express that attitude.

In this article, we’ll talk about what tone words are, analyze their use in several examples, and give a list of tone words with definitions that you can use in your writing.

Have you ever thought about how different kinds of animals have body parts that work in similar ways? Like bats and bees? Both creatures have wings - even though their bodies are structured very differently.

The key to understanding these differences lies in knowing what homologous and analogous structures are. In this article, we'll talk about each type of structure and discuss the similarities and differences between them.

It’s alliiiiiiiveeee!

Slime is a fun and interactive way to teach kids about chemistry. There are hundreds of slime recipes out there, which produce slimes with different qualities.

In this article, we’re talking all about slime: what it is, how to make it, and what you absolutely need to know to make the best slime of all time.

We promise, we won’t do that rhyme again.

Wondering how many zeros are in a billion? A trillion? A nonillion?

Whether you’ve recently won the lottery and are trying to make sure your bank account has the correct number of zeros or you’re simply trying to find an easy way to understand how many zeros are in large numbers (over a million), this is the article for you.

We’ll break down an easy trick for figuring out how many zeros are in large numbers and provide a handy chart for easy reference.

Have you heard the term “rational numbers?” Are you wondering, “What is a rational number?” If so, you’re in the right place!

In this article, we’ll discuss the rational number definition, give rational numbers examples, and offer some tips and tricks for understanding if a number is rational or irrational.

If you’re applying to Boston University, you’ll need to respond to the Why Boston University essay prompt as part of your application. The Why BU essay is a required element of your application and a great way to show the BU admissions committee why Boston University is the right fit for you and vice versa.

In this article, we’ll break down the Why Boston University essay prompt, give you ideas for what to talk about, and offer tips for writing an essay that will wow the admissions committee.

Do you know the difference between prime and composite numbers? If not, don’t worry! You’ve come to the right place.

In this post, we’ll talk about what prime and composite numbers are and give you a handy chart you can use to quickly see if something is a composite number.

Paying for college can be challenging for many students. College is expensive and the financial aid process isn’t always transparent or easy to navigate.

Fortunately, if you’re willing to spend some time looking, there are many different resources out there that can help you figure out how to pay for college. If you’re a first generation college students, there are many first generation scholarship opportunities that you can apply for.

In this article, we’ll explain what first generation college student scholarships are and give a list of scholarships for first generation college students that you can apply for.

Struggling to figure out when you should use e.g. vs i.e.? What about i.e. vs ex.? E.g. vs e.x.?

Those are enough abbreviations to make your head spin! In this article, we’ll break down what i.e., e.g., and ex. all stand for and explain how to use each properly in a sentence. We’ll also give you some quick tips for remembering which is which.

Williams is among the most selective colleges in the country, with an acceptance rate of 15 percent. As part of your Williams application, you’ll need to respond to the Williams writing supplement.

In this article, we’ll cover the three questions that make up the Williams writing supplement, offer suggestions for what to write about in your essay, and give you tips for crafting the best essay possible.

The University of Pennsylvania requires all first year applicants to submit a personal essay as well as a Penn-specific essay. If you’re hoping to be one of the 8% of students admitted to Penn every year, your UPenn essay is an important part of your application. You’ll need to make sure your essays are strong to increase your chances of admission.

In this article, we’ll go over the UPenn essay logistics - covering exactly what you need to write for each college you’re applying to at UPenn. Then, we’ll break down each prompt, offering suggestions for what to write about. Finally, we’ll give tips on how to write an amazing UPenn essay that’ll help you get into your dream school. 

Looking for a fun and effective way to reinforce the math skills learned in 5th grade? Try playing a game! Games are a great way to solidify the key lessons fifth graders learn in the classroom while also having fun.

In this article, we'll talk about the key skills students learn in fifth grade, why games are so important for mastering those skills, and give you a list of 10 games you can start playing right now.

If you’re applying for admission to UNC Chapel Hill, you’ll have to write a total of three essays as part of your application. Your UNC Chapel Hill supplemental essays are a great way to tell the admissions committee more about yourself while also showing your interest in UNC and your dedication to your education.

In this article, we’ll break down what the UNC essay prompts are, what you should talk about in each, and offer tips for writing great UNC supplemental essays.

If you’ve found yourself waitlisted or deferred from your dream school, you might be worried and frustrated. What does being on the waitlist mean? Do you still have a chance of getting in? What can you do to improve your chances?

While there’s not one singular way of ensuring your eventual admission to your dream school, a letter of continued interest can show your continued dedication to the admissions committee. In this article, we’ll talk about what a continued interest letter is and give a letter of continued interest sample so you know how to write your own if you need to.