0:00 / 5:24
Physical vs. Chemical Changes: What's the Difference?
In chemistry, there are two main types of changes - physical changes and chemical changes. Physical changes affect the shape, size, and form of a substance. Chemical changes changes occur when the particles of two or more substances are rearranged to form a new substance. Come learn how to tell the difference between the two in this fun and educational video! Like this video if you want to see more videos about SCIENCE! Subscribe to FreeSchool: https://www.youtube.com/user/watchfreeschool?sub_
How it works
- Press play to start the video.
- Videos 5 minutes or longer pause once or twice for a quick check. Get it right and you're on your way. If not, you'll see a friendly explanation and the video simply keeps going. Short videos skip the checks.
- At the end there's a 3-question test. Score 60% or more to complete the lesson, and 80% or more to master it. You can always watch again and try for a higher score.