Brand Logo
Login
Search
Brand Logo

Edzy for Classes 6-12

Edzy is a personal AI tutor for CBSE and State Board students, with curriculum-aligned guidance, practice, revision, and study plans that adapt to each learner.

  • Email: always@edzy.ai
  • Phone: +91 96256 68472
  • WhatsApp: +91 96256 68472
  • Address: Sector 63, Gurgaon, Haryana

Follow Edzy

Browse by Class

  • CBSE Class 6
  • CBSE Class 7
  • CBSE Class 8
  • CBSE Class 9
  • CBSE Class 10
  • CBSE Class 11
  • CBSE Class 12
Explore the CBSE resource hub

Explore Edzy

  • Study Resources
  • Free Study Tools
  • Best Apps for Board Exams
  • Edzy vs ChatGPT
  • About Us
  • Why We Built Edzy
  • Blog
  • CBSE AI Tutor

Support & Legal

  • Help & FAQs
  • Accessibility
  • Privacy Policy
  • Terms & Conditions
  • Refund Policy
  • Cookie Policy
  • Site Directory

© 2026 Edzy. All rights reserved.

Curriculum-aligned learning paths for students in Classes 6-12.

EI
Question Practice

What is the role of a control group in an experiment?

Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.

MCQ_SA
CBSE
Class 8
Science
Curiosity
Exploring the Investigative Wo...
Question Bank

What is the role of a control ...

Single Answer MCQ
Q-00136708

What is the role of a control group in an experiment?

1

To provide a baseline for comparison

2

To test multiple variables at once

3

To ensure the experiment is successful

4

To change all variables

Previous QuestionNext Question
Keep Practising

Students who asked this also explored

Continue with nearby questions to strengthen the same chapter concept while you still have the context fresh in mind.

Q1.

What is the first step in a scientific investigation?

Single Answer MCQ
View explanation
Q2.

Which term describes a possible explanation for a set of observations?

Single Answer MCQ
View explanation
Q3.

In an experiment, what should be kept constant to ensure valid results?

Single Answer MCQ
View explanation
Q4.

Why is it important to document observations during an experiment?

Single Answer MCQ
View explanation