The UWorld College Prep Blog

Best SAT® Prep App | Top Picks to Help You Ace the SAT
Effective SAT® prep isn’t about doing more; it’s about doing it smarter. Here’s a roundup of the best SAT apps available in the market to help you choose your best fit.
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Best SAT® Prep YouTube Channels to Boost Your Score
Boost your SAT® score with the best SAT prep YouTube channels; get free tips, visual learning, and expert strategies to study smarter, anytime, anywhere!

Best Places to Send Your ACT® Score for Free in 2025 | Where and How to Make the Most of Your Free Score Reports
With limited free score sends, every choice matters. Learn how to pick the best places to send your ACT® score for free based on your goals, deadlines, and scholarship opportunities.

Best ACT® Prep YouTube Channels in 2025 | Top Free Video Resources to Boost Your Score
Discover the best ACT® prep on YouTube; expert-led videos, free walkthroughs, and strategy content tailored to help you boost your score with zero cost and total flexibility.

Best ACT® Flashcards to Ace the Test (2025–2026): Top Picks for Smart Study
Discover the best ACT® flashcards to supercharge your prep; boost memory, master key topics, and review anytime, anywhere.

Best ACT® Prep Websites in 2025 | Top Platforms to Boost Your Score
Online ACT® prep is the top choice in 2025 for its flexibility, affordability, and smart tools. Compare the best ACT prep websites to find your perfect match.

Best ACT Tutors in 2025: Top-Rated Services to Boost Your Score
Looking for the best ACT tutor to help you succeed on test day? We’ve researched and compared the top ACT tutoring services to help you find one that matches your learning style, goals, and budget.
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Commas and Quotations on the SAT® Exam
Here are a few quick rules that can help when you’re working on questions about commas and quotations on the SAT Writing and Language Test.

Commas after Introductory Information on the SAT® and ACT® Exams
On both, the SAT and ACT exams test student knowledge about commas after introductory. Learn how to identify the correct and incorrect way to use commas.

Commas and Appositives on the SAT® and ACT® Exams
Both the SAT and ACT exams expect students to know whether or not appositives should be set off from the rest of the sentence with commas.

Commas between Independent Clauses on the SAT® and ACT® Exams
Learn how to identify commas between independent clauses on the SAT® and ACT® Exams. Try UWorld’s test prep to enhance your practice.

Commas in a List or Series on the SAT® and ACT® Exams
Learn how to identify commas in a list or series on the SAT and ACT exams by using our quick guide to lean the type you’ll see and how many

College Admissions During COVID-19 | Insights from Dr. Thiago Oliveira
High school counselor, Dr. Thiago Oliveria, talks about the new normal for high school students and college admissions in light of COVID-19.
Curious About Class and Test Resources?
Get a clear overview of what the SAT measures, why it matters for college admissions, and what you’ll encounter on test day.
Explore how the SAT is structured, including section breakdowns, timing, and questions you’ll face.
Review key content areas and subject matter covered on the SAT so you know what to focus on while studying.
Explore how each part of the SAT contributes to your final score and the scoring criteria used.
Discover helpful tips and effective study strategies to organize your prep and work toward your goal score.
Stay updated on when to take the SAT, how to register, and what costs to expect.
Learn about official SAT policies and how to request testing accommodations if you need them.
Understand how the SAT and ACT compare in format, content, and scoring so you can create the best college admissions strategy for you.
Access helpful resources and guidance for international students planning to take the SAT.
Understand what’s covered on the math portion of the SAT, including topics, format, and tips for solving problems.
Understand what’s covered on the reading and writing portion of the SAT, including passage types, question formats, and key skills tested.
Learn what the ACT measures, how it supports college admissions, and what to expect from each section.
Get to know the ACT exam format: its structure, content sections, question types, and time limits.
Explore the ACT syllabus and topics to understand precisely what’s covered on the test.
Understand how the ACT is scored, how each section contributes, and what your score means.
Discover study strategies, planning tools, and tips to help you excel on the ACT.
Find out who can take the ACT, how to register, when it’s offered, and what fees to expect.
Review key ACT policies and learn how to request accommodations for extra support.
Compare the ACT and SAT to decide which test, or combination, best suits your goals.
Access resources and registration information for international students preparing for the ACT.
Understand what’s covered on the ACT math section, including topics, formats, and problem-solving skills.
See what to expect in the ACT English section, including grammar rules, sentence structure, and editing skills.
Learn about the ACT reading section, including passage types, reading skills, and question strategies.
Explore what’s tested on the ACT science section, including data analysis, experiment summaries, and graphs.
Get an overview of the ACT writing test, what’s required in your essay, how it’s evaluated, and tips for deciding if you should take it.
Study ecosystems, evolution, genetics, and molecular biology.
Learn limits, derivatives, integrals, and core calculus concepts.
Explore advanced calculus topics beyond Calculus AB.
Understand atomic structure, bonding, and thermodynamics.
Build skills in analysis, composition, and argumentation.
Analyze poetry, prose, drama, and literary techniques.
Study ecosystems, environmental issues, and sustainability solutions.
Explore migration, land use, and global human-environment patterns.
Understand supply, demand, growth, inflation, and fiscal policy.
Learn kinematics, forces, motion, and problem-solving in physics.
Explore mental processes, development, and behavior in daily life.
Study data, probability, and inference through real-world analysis.
Study the Constitution and other key documents, plus political systems, civil rights, and policymaking.
Trace U.S. history through key events, documents, and historical themes.
Explore global change through political, economic, and cultural systems.