Class 7 Exam > Class 7 Notes > Class 7 Oxford Science: Chapter Notes, Worksheets & Tests > Worksheets: Chemical & Chemical Changes
Chemical and Chemical Changes Class 7 Worksheet Science Chapter 5
| Table of contents |
|
| Section A: Multiple Choice Questions |
|
| Section B: Short Questions |
|
| Section C: Fill in the Blanks |
|
| Section D: Match the Column |
|
| Section E: True or False |
|
Section A: Multiple Choice Questions
Q.1. Which of the following is not a chemical substance?
(a) Oxygen
(b) Water
(c) Sugar
(d) Sand
Q.2. Which of the following is a chemical change?
(a) Melting of ice
(b) Burning of wood
(c) Cutting of paper
(d) Mixing of salt and water
Q.3. What is the chemical symbol for gold?
(a) Ag
(b) Au
(c) Fe
(d) Pb
Q.4. Which of the following is a physical change?
(a) Rusting of iron
(b) Baking of a cake
(c) Digestion of food
(d) Burning of fuel
Q.5. What is the chemical formula for water?
(a) H2SO4
(b) CO2
(c) NaCl
(d) H2O
Section B: Short Questions
Q.1. Define a chemical change.
Q.2. What is the difference between a chemical substance and a mixture?
Q.3. Write the chemical formula for sodium chloride.
Q.4. Give an example of a physical change.
Q.5. Explain what happens during crystallization.
Section C: Fill in the Blanks
Q.1. Chemical substances are made up of _____________.
Q.2. The shorthand way of representing an element is its _______________.
Q.3. The combination of symbols and numbers which indicates the number of atoms in a molecule is called the _______________.
Q.4. A chemical reaction is represented by a _____________.
Q.5. The process of separating a solid from a solution by cooling it is called _______________.
Section D: Match the Column
Match the following symbols with their respective elements:
Section E: True or False
Q.1. A chemical change is reversible. ______
Q.2. Physical changes do not change the nature of the substance. ______
Q.3. Chemical formulae are used to represent the composition of a substance. _____
Q.4. Crystallization is a physical change. ______
Q.5. Chemical reactions occur when substances are heated. ______
You can access the solutions to this worksheet here.
The document Chemical and Chemical Changes Class 7 Worksheet Science Chapter 5 is a part of the Class 7 Course Class 7 Oxford Science: Chapter Notes, Worksheets & Tests.
All you need of Class 7 at this link: Class 7
|
140 videos|108 docs|18 tests
|
FAQs on Chemical and Chemical Changes Class 7 Worksheet Science Chapter 5
| 1. What are the main differences between physical and chemical changes? |  |
Ans.Physical changes involve a change in the state or appearance of a substance without altering its chemical composition, such as melting ice or boiling water. Chemical changes, on the other hand, result in the formation of new substances with different properties, like rust forming on iron.
| 2. Can you give examples of everyday chemical changes? | |
Ans.Examples of everyday chemical changes include baking a cake (where ingredients react to form a new product), burning wood (which produces ash and smoke), and digestion of food (where enzymes break down food into new substances).
| 3. How can we identify a chemical change has occurred? | |
Ans.Indicators of a chemical change include the formation of a gas (bubbles), a change in color, the formation of a precipitate (solid), and the release or absorption of heat (temperature change).
| 4. What is the importance of understanding chemical changes in daily life? | |
Ans.Understanding chemical changes is important as it helps us make informed decisions about cooking, cleaning, and using various products safely. It also aids in recognizing how substances interact in our environment, affecting health and safety.
| 5. How do chemical reactions relate to the conservation of mass? | |
Ans.According to the law of conservation of mass, in a chemical reaction, the total mass of the reactants equals the total mass of the products. This means that atoms are neither created nor destroyed during a chemical change, only rearranged.
Related Exams
About this Document
|
Nov 19, 2024 Last updated |
Document Description: Worksheets: Chemical & Chemical Changes for Class 7 2024 is part of Class 7 Oxford Science: Chapter Notes, Worksheets & Tests preparation.
The notes and questions for Worksheets: Chemical & Chemical Changes have been prepared according to the Class 7 exam syllabus. Information about Worksheets: Chemical & Chemical Changes covers topics
like Section A: Multiple Choice Questions, Section B: Short Questions, Section C: Fill in the Blanks, Section D: Match the Column, Section E: True or False and Worksheets: Chemical & Chemical Changes Example, for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Worksheets: Chemical & Chemical Changes.
Introduction of Worksheets: Chemical & Chemical Changes in English is available as part of our Class 7 Oxford Science: Chapter Notes, Worksheets & Tests
for Class 7 & Worksheets: Chemical & Chemical Changes in Hindi for Class 7 Oxford Science: Chapter Notes, Worksheets & Tests course.
Download more important topics related with notes, lectures and mock test series for Class 7
Exam by signing up for free. Class 7: Chemical and Chemical Changes Class 7 Worksheet Science Chapter 5
Description
Full syllabus notes, lecture & questions for Chemical and Chemical Changes Class 7 Worksheet Science Chapter 5 - Class 7 | Plus excerises question with solution to help you revise complete syllabus for Class 7 Oxford Science: Chapter Notes, Worksheets & Tests | Best notes, free PDF download
Information about Worksheets: Chemical & Chemical Changes
In this doc you can find the meaning of Worksheets: Chemical & Chemical Changes defined & explained in the simplest way possible. Besides explaining types of
Worksheets: Chemical & Chemical Changes theory, EduRev gives you an ample number of questions to practice Worksheets: Chemical & Chemical Changes tests, examples and also practice Class 7
tests
|
140 videos|108 docs|18 tests
|
Download as PDF
|
Explore Courses for Class 7 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
MCQs
,mock tests for examination
,Extra Questions
,Objective type Questions
,Free
,shortcuts and tricks
,Sample Paper
,Exam
,study material
,practice quizzes
,Chemical and Chemical Changes Class 7 Worksheet Science Chapter 5
,Previous Year Questions with Solutions
,video lectures
,past year papers
,Important questions
,Summary
,ppt
,Viva Questions
,Semester Notes
,Chemical and Chemical Changes Class 7 Worksheet Science Chapter 5
,Chemical and Chemical Changes Class 7 Worksheet Science Chapter 5
;
Additional Information about Worksheets: Chemical & Chemical Changes for Class 7 Preparation
Worksheets: Chemical & Chemical Changes Free PDF Download
The Worksheets: Chemical & Chemical Changes is an invaluable resource that delves deep into the core of the Class 7 exam.
These study notes are curated by experts and cover all the essential topics and concepts, making your preparation more efficient and effective.
With the help of these notes, you can grasp complex subjects quickly, revise important points easily,
and reinforce your understanding of key concepts. The study notes are presented in a concise and easy-to-understand manner,
allowing you to optimize your learning process. Whether you're looking for best-recommended books, sample papers, study material,
or toppers' notes, this PDF has got you covered. Download the Worksheets: Chemical & Chemical Changes now and kickstart your journey towards success in the Class 7 exam.
Importance of Worksheets: Chemical & Chemical Changes
The importance of Worksheets: Chemical & Chemical Changes cannot be overstated, especially for Class 7 aspirants.
This document holds the key to success in the Class 7 exam.
It offers a detailed understanding of the concept, providing invaluable insights into the topic.
By knowing the concepts well in advance, students can plan their preparation effectively.
Utilize this indispensable guide for a well-rounded preparation and achieve your desired results.
Worksheets: Chemical & Chemical Changes Notes
Worksheets: Chemical & Chemical Changes Notes offer in-depth insights into the specific topic to help you master it with ease.
This comprehensive document covers all aspects related to Worksheets: Chemical & Chemical Changes.
It includes detailed information about the exam syllabus, recommended books, and study materials for a well-rounded preparation.
Practice papers and question papers enable you to assess your progress effectively.
Additionally, the paper analysis provides valuable tips for tackling the exam strategically.
Access to Toppers' notes gives you an edge in understanding complex concepts.
Whether you're a beginner or aiming for advanced proficiency, Worksheets: Chemical & Chemical Changes Notes on EduRev are your ultimate resource for success.
Worksheets: Chemical & Chemical Changes Class 7 Questions
The "Worksheets: Chemical & Chemical Changes Class 7 Questions" guide is a valuable resource for all aspiring students preparing for the
Class 7 exam. It focuses on providing a wide range of practice questions to help students gauge
their understanding of the exam topics. These questions cover the entire syllabus, ensuring comprehensive preparation.
The guide includes previous years' question papers for students to familiarize themselves with the exam's format and difficulty level.
Additionally, it offers subject-specific question banks, allowing students to focus on weak areas and improve their performance.
Study Worksheets: Chemical & Chemical Changes on the App
Students of Class 7 can study Worksheets: Chemical & Chemical Changes alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Worksheets: Chemical & Chemical Changes,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Worksheets: Chemical & Chemical Changes is prepared as per the latest Class 7 syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup