Scientific observation and experimentation allow understanding of fundamental properties of matter, including that matter cannot be created or destroyed, can exist as solids, liquids or gases, can change states through physical changes, and can change composition through chemical changes. The document discusses how scientific inquiry helps explain the conservation and physical properties of matter.

1. How the World Works
Central Idea:
Observing and experimenting allows understanding of the
conservation and physical properties of matter.
Lines of Inquiry:
Scientific inquiry and ways of knowing
Conservation of matter

24. What We Learned
• Matter cannot be created nor destroyed!
• Matter can be a solid, liquid or gas.
• Matter can change states. This is a physical
change.
• Matter can change it’s composition. This is a
chemical change.

25. A Very Big Thank You to
Mrs. Lemay and Sophie
for helping us learn!