Grade 1 · Science · Lesson 23

Classifying Objects by Properties

Scientists sort objects into groups all the time. This is called classifying. When we classify, we choose one property — like color, size, shape, or texture — and use it to sort everything into groups.

What this lesson teaches

1Explain what it means to classify an object by a property
2Sort everyday objects as hard or soft
3Give a reason for each classification choice

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