5.2 Properties and Changes of Matter

Tips for week 22: To adapt this lesson for in class learning, provide more opportunities for students to share their ideas and reasoning about the formation of new substances throughout the lesson. If students’ do not agree, this is a great opportunity to push students to share their evidence and reasoning and work on the practice of engaging in argumentation. For Part 2: Explore each student will need: ¼ cup of vinegar, 2 T of milk in a clear cup, 2T of oil in a clear cup, a spoon, a paper towel, a bowl or cup, and 4 pennies. An extra paper towel is helpful for cleaning the spoon after mixing the substances. The rest of the lesson does not require special materials.

Using Dissolving to Identify Substances - American Chemical SocietyStudents compare the dissolving of salt and sugar and then conduct a dissolving test on unknown substances marked A, B, and C to investigate the question: Can substances be identified by how well they dissolve in water?

Foam Gnomes Video

5.2.4 Conservation of Matter with Physical Changes

Conservation of Matter Reading Material

Conservation of Matter Reading - Downloadable pdf

Generation Genius Video Clip

Matter Cannot Be Destroyed Video with Demonstration

Mystery Science Lessons from Chemical Magic: Lesson 1 and 2

(These lessons cover many standards from Strand 2, by using reactions with pennies. The hands-on activities worked with post-1982 pennies and using a paperclip instead of a steel nail, which makes the supplies a little easier.)

Law of Conservation of Mass with Chemical Changes - In Nearpod Library

Crash Course - Lego Block Party

Link to GSD Lesson - Combining Baking Soda and Vinegar

Regarding week 24 Lesson - Missing Weight - Adapted from link above to GSD Lesson. The main difference between the GSD model lesson and this Canvas lesson is that students generate their own claims about what happened to the missing weight. You just adjust the slideshow as needed. They also spend more time coming up with ideas for how to test the claims. The GSD model lesson does a better job of engaging students in the practice of Planning and Carrying Out Investigations. If possible, let students test the claims themselves using electronic kitchen scales. Keep in mind that these scales are not perfect! Students may lose or gain a gram or two after the matter changes. If all groups share their data publicly, the class can look for patterns that usually show that overall the total weight of the matter stayed the same regardless of the change.