Changes in Matter


We have been focusing on our unit about matter. We have learned that matter can in the form of a solid, liquid, or gas. Now we are learning about the changes that can happen with matter. Some of these changes can be reversed, while others cannot. 


During this WebQuest, you will interact with different websites about changes in matter. Remember, matter can be in the form of a solid, liquid, or gas. This WebQuest will focus on the physical and chemical changes with matter. You will learn much more about this throughout your activities.

Our first website is a short video about changes in matter. It will give you a better understanding and show some real life examples of these types of changes. Following the video, you will have a few short questions. 

Our second website is an article about matter. It gives a very quick summary about some things we learned from our video. This website also gives us a little extra information. After reading the article, you will have a few questions to answer about what you have learned.

Our last website is a game that focuses on reversible and irreversible changes. You will have questions to answer after completing this activity.

All of the activities will have questions following them. It is important to pay close attention to the videos and articles. If you are stuck on a question, replay the video or reread the article. For your interactive activity, be sure to use the information you have gathered from your learning.  Let's have some fun!



Part 1: Click on the link below. This will teach you about how chemical and physical changes can happen. After you read the article answer the questions on your worksheet. You may play the article to have it read to you, but you must follow along.


Questions for this article:

1. Anything that takes up space is called:

A. Air

B. Stuff

C. Matter

D. Mass

2. List examples 2 examples of each type of matter.











3. Matter changes from one state to another. This happens when a substance is ___________ or __________.


Part 2: Watch this short video about physical and chemical changes. Pay very close attention to the video and examples. Be sure to watch the entire video, and then look at your questions. Once you have watched the video at least one time, you can then replay it to answer the questions on your worksheet.

Physical and Chemical Changes of Matter:

Questions for this video:

1. What is a physical change?

2. A physical change can be caused by ___________, ____________, or _____________.

3. What is a chemical change? Can it be reversed?

4. A physical change can be reversed. Circle the correct answer

A. True

B. False

5. Using the Venn diagram, compare and contrast physical and chemical changes.


Part 3: Click the website below to enjoy this interactive activity about reversible and irreversible changes. Remember, physical changes are reversible, and chemical changes are irreversible. You will complete the activity while following along with my directions.

1. Press "OK" once you have reached the game.

2. Find a substance that will dissolve in water, use the arrows.

3. Once you have found the substance, press OK. Then, press the button that says "Reversing."

4. Follow the directions on the activity.


Questions for the activity:

1. Was the following a chemical or physical activity:

Freezing water (C/P)

Heating an egg (C/P)

Dissolving salt in water (C/P)

Mixing sand in water (C/P)

2. You have worked with physical and chemical changes in this activity. What is a physical change? A chemical change? What is the difference between the two types of changes? To answer this question give at least 2-3 complete sentences.



For this activity you will be graded based on your completion, and how you answer your questions.

You will get 20 points for completing the WebQuest.

You can earn 20 points for correctly answering all questions. Each question is worth 2 points.





Completion of activity

Students did not complete the WebQuest


Students did complete the WebQuest

Questions answered correctly




Each Question is worth 2 points






The resources and activities have helped you learn about chemical and physical changes. We learned that physical changes can be reversed, and chemical changes cannot be reversed. We were also able to see how these changes may look in real life. Remember all the things you have learned throughout this WebQuest so you can share what you have learned to the class. I am excited to hear what everyone has learned!




(n.d.). Retrieved from


Changes of Matter: StudyJams! Science. (n.d.). Retrieved from…

WebQuest Creator:

Create a WebQuest: Simple. Quick. Free. (n.d.). Retrieved from

Interactive Activity:

Reversible & Irreversible Changes - Dissolving - Science Games & Activities for Kids. (n.d.). Retrieved from

Teacher Page

This WebQuest is great for a 2nd grade classroom learning about changes in matter.

At this point in their learning, they should know what matter is, the forms it can be in, and how matter is in our everyday lives. They will be introduced to chemical and physical change with an article, video, and an interactive activity. The students will answer a variety of questions based on their learning.

Performance expectation:

2-PS1-4 Construct an argument with evidence that some changes caused by heating or cooling can be reversed and some cannot.

Disciplinary Core Ideas:

Heating or cooling a substance may cause changes that can be observed. Sometimes these changes are reversible, and sometimes they are not.

This information comes from the 2nd grade Science standard 2-PS1-4. The topic is Matter and Its Interactions.