Common-Core/ Grade 7
Science MCQ Based On Comparing physical and chemical changes
Our free online Science test quiz for Grade 7 will assist you to improve your Science skills on every concept in a fun interactive way.
Happy students
Awesome classes
Common-Core Grade 7 - 7 Comparing physical and chemical changes
|
In Physical change, chemical bonds do not break and in Chemical change,chemical bonds in the molecules break
This law states that the mass can neither be created nor be destroyed but it can be transformed from one form to another.
In the condensation of water, gas is converted into vapor.
When water evaporates, the chemical makeup of the substance is not changed.
In this process, zinc coating is applied to iron to protect it from rust.
In physical change, no new substance is formed whereas, in chemical change, a new substance is formed.
In a physical change, no new matter is formed whereas in a chemical change new matter is formed.
In rusting of iron two substances react together to make a new substance.
When oxygen atoms bond with iron atom, that results in the formation of rusting
It is also known as Irreversible change.
At JustTutors, we believe in the power of digital technology to help students get personalized learning and attention from India's best-in-class science, english and math tutors. We are focused on creating a top-class e-learning platform that brings together the best teachers, technology, media, content for creating a seamless and world-class experience for every student.