ACT Science Quizzes, Questions & Answers

Top Trending ACT Science Quizzes

ACT Science Scientific Method and Data Interpretation Quiz

This quiz tests your understanding of the ACT Science Scientific Method and Data Interpretation Quiz concepts. You'll evaluate experimental designs, analyze data tables and graphs, and interpret scientific findings. Master these...

Questions: 15 | Attempts: 17 | Last updated: May 7, 2026

Sample Question 1
A researcher tests whether temperature affects enzyme activity by measuring reaction rates at 25°C, 35°C, and 45°C. Which variable is the independent variable?

Temperature

Enzyme activity

Reaction rate

Type of enzyme

Sample Question 2
In a controlled experiment, what is the purpose of a control group?

To receive the experimental treatment

To provide a baseline for comparison

To increase sample size

To eliminate all variables

ACT Science Variables Controls and Experimental Design Quiz

This quiz tests your understanding of experimental design, variables, and controls\u2014core skills for the ACT Science section. You'll identify independent and dependent variables, recognize control groups, and evaluate how...

Questions: 15 | Attempts: 10 | Last updated: May 14, 2026

Sample Question 1
What is the purpose of a control group in a scientific experiment?

To provide a baseline for comparison with experimental groups

To increase the number of test subjects

To eliminate all variables from the study

To prove the hypothesis is correct

Sample Question 2
Which of the following is a controlled variable in an experiment measuring exercise's effect on heart rate?

The type of exercise performed

The duration of exercise

The heart rate measurement

The room temperature

Recent ACT Science Quizzes

ACT Science Ecology and Environmental Systems Quiz

Questions: 15 | Attempts: 10 | Last updated: May 7, 2026

Sample Question
Which of the following best describes the role of decomposers in an ecosystem?

They consume primary consumers for energy

They break down dead organic matter and return nutrients to soil

They produce glucose through photosynthesis

They regulate predator populations

ACT Science Newtons Laws of Motion Quiz

Questions: 15 | Attempts: 10 | Last updated: May 7, 2026

Sample Question
According to Newton's first law, an object at rest will remain at rest unless acted upon by what?

Gravity

An unbalanced force

Friction

Velocity

ACT Science Biology Cell Theory and Genetics Quiz

Questions: 15 | Attempts: 10 | Last updated: May 7, 2026

Sample Question
According to cell theory, all living organisms are composed of what basic unit?

Atoms

Cells

Molecules

Tissues