CBSE Class 7 Physical & Chemical Changes Quiz

A free CBSE Class 7 Physical & Chemical Changes quiz. Play without signing up; sign in to save your score.

CBSE Class 7 classScience subjectFree quiz

In CBSE Class 7 Science, Physical and Chemical Changes distinguishes changes in form or state from the formation of new substances. Children compare cutting, melting and dissolving with burning magnesium and rusting iron, and assess clues such as gas, colour and heat alongside the substances formed.

The CBSE Class 7 Physical & Chemical Changes quiz is free to play without signing up. Sign in to save scores. Classic has a timer; Trivi gives three hearts; Learn is untimed with no score.

What you practice

These are the CBSE Class 7 Physical & Chemical Changes skills this quiz is built around.

Classify changes by whether new substances form.
Compare crystallisation with rusting.
Assess gas, colour and heat changes as possible evidence.

A useful tip

Ask whether a new substance forms. Cutting paper is an irreversible physical change, so reversibility alone cannot decide whether a change is physical or chemical.

Frequently asked questions

What does CBSE Class 7 Physical & Chemical Changes practice?

Practice includes: Classify changes by whether new substances form; Compare crystallisation with rusting; Assess gas, colour and heat changes as possible evidence.

Is the CBSE Class 7 Physical & Chemical Changes quiz free?

Yes. This quiz is free to play without signing up. Sign in to save your scores and progress.

What game modes can I use?

Classic has a timer; Trivi gives three hearts; Learn is untimed with no score.