Free ACT Score Predictor

Original ACT-style questions aligned to current Math, English, and Science reasoning sections.

Question

1 / 10

ACT Composite

0 correct

ACT Science: A scientist observes a radioactive isotope with a half-life of 4 hours. If the initial sample mass is 120 grams, approximately how much remains after 14 hours?

Tool-led assessment. Locale: en

Related Exam Practice

Preparing for multiple exams? Try these related practice tools:

Get the QuizVerse App

More ACT questions inside

Download Free