What makes things change and what affects how fast they change? Why do some things burn more fiercely, rust more quickly or smell more strongly? The whole world is made up of particles that are constantly moving and reacting with one another in fascinating ways. Science seeks to understand why and how substances change, and this has led to advances in everything from food preservation to fire control.
The Change detectives unit is an ideal way to link science with literacy in the classroom. It provides opportunities for students to explore melting, evaporating, dissolving, reacting and burning. Students' understanding of the factors that influence the rate of change will be developed through hands-on activities and student-planned investigations. Students become detectives who identify and explain physical and chemical changes in everyday materials.
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