Science Unit 4 is pretty difficult. (Don't you think?) If you want
to make sure you understand everything you're learning in class, first,
re-read the lesson in the book and then visit these websites:
This is a great video;
you can review the definitions of physical and chemical changes and
afterwards you can take a quiz to test your knowledge. (Be careful, it's
designed for American children so you may have to watch two or three
times). In this game you have to choose whether the video is showing a physical or a chemical change. Leave a comment with your score! In this activity, you review if changes are reversible or irreversible. Did you answer the questions correctly?
Extra: If you didn't do well on the last test and more practice, check out this video about Solids, Liquids, and Gases or watch this one about Changing States of Matter
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