GRADE 5 SCIENCE · CHAPTER 3
Matter & chemical change
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Matter
Track mass in a closed system
Account for all matter, including gas, when interpreting a stated closed-system mass measurement.
Matter
Choose a method to separate a mixture
Use differences in physical properties to select a separation method.
AN EXAMPLE FROM THIS CHAPTER
A sealed bag contains 100 g of water and 10 g of sugar. The sugar dissolves, and nothing enters or leaves. What is the total mass of these contents?
Show answer & explanation
110 g
100 + 10 = 110 g; dissolving does not remove the sugar's matter.
Curriculum & source notes
These are original Little Play study books organized around U.S. school topics. The official curriculum references below guide topic scope and progression. Coverage is selected, not a complete curriculum or a verified match to every state standard. They are not copies of a publisher’s textbook. Check your school’s syllabus and book edition.
High-school courses can be taken in different years. Choose the topic that matches the student’s current course.
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