Learning Resource

Write the ratio as a fraction, divide to get a decimal, then multiply by 100 to express the result as a percent. Ratios show how two quantities compare. Percents show a share out of 100. When you switch a ratio into a percent, you get a number that’s easy to compare across sizes, groups, and

Many tests show score gaps, yet bias hinges on fairness checks, item behavior, and how results get used. People ask this question for a reason. A test score can open doors or shut them. When the stakes feel high, it’s fair to wonder whether the tool itself treats everyone the same. This piece lays out

No—wild hippos don’t live in Egypt today, though you may still see hippos in some zoos. People ask this because the Nile feels like “hippo territory.” Warm water, reeds, wide banks, old stories, ancient art—everything points to hippos. And it’s not a silly question. Hippos really did live along parts of the Nile in Egypt

No—Pace is test-optional for most applicants, so you can apply without SAT or ACT scores and still be reviewed for admission. If you’re staring at the “Test Scores” section of your application and feeling stuck, you’re not alone. A lot of students worry that skipping the SAT means they’ll look less competitive. Others worry that

You can pass mathematics by fixing your biggest gaps first, practicing daily with timed questions, and reworking mistakes until the steps feel automatic. Math can feel like a brick wall when one earlier skill is shaky. A lesson looks clear in class, then homework turns into guesswork. Tests show up, and it’s like your brain

Air is matter because it has mass, takes up space, and pushes on surfaces as measurable pressure. Air can feel “invisible,” so it’s easy to treat it like nothing. Yet air is made of particles that can be weighed, contained, and measured. Once you start looking for evidence, it shows up everywhere: in a pumped

A transformer shifts AC voltage by coupling two coils through a changing magnetic field, trading volts for amps while keeping power close to steady. Transformers feel like magic the first time you meet them. You feed one side a voltage, and the other side gives you a different voltage without any moving parts. No spinning

In French, the everyday word for a bed is “le lit,” pronounced like “lee.” You’ll hear “le lit” in homes, hotels, kids’ stories, and doctor’s notes. It’s the plain, everyday noun for a bed. Once you’ve got it, the next step is using it the way French speakers do: with the right article, the right

They harvest energy by breaking down organic food molecules via respiration or fermentation, then capture it as ATP for cell work. Heterotrophic bacteria can’t make their own food from carbon dioxide. They live on ready-made organic molecules, then strip those molecules for energy and building blocks. If you’re studying biology, this topic sits at the

On many official U.S. forms, Kurdish ancestry can be counted under White, while many people describe themselves first as Kurdish. If you’ve ever stared at a race box and thought, “None of these clearly says what I am,” you’re not alone. A lot of Kurdish people run into that moment, especially in places where “race”