Grade 1 · Science · Lesson 35

Sorting Materials

You have already learned about classifying objects by properties, the three states of matter, sink and float, and how materials are chosen for their purpose. Today you put it all together — by getting your hands on real objects and sorting them yourself.

What this lesson teaches

1Collect everyday objects and physically sort them by observable properties — hard or soft, transparent or opaque, sink or float and record results
2Explain each choice using correct materials vocabulary

Free · 7 days · No credit card

Unlock the full HSEA system for 7 days.

Create a kid profile, open any lesson, save progress — your family uses HSEA exactly the way a paying family does. Cancel anytime. Nothing to set up, no card required.

✓ All 1,680 lessons, Grades 1–6, every subject
✓ Profiles + saved progress for every kid
✓ Final exams + printable certificates

Start your 7-day free trial →

Already convinced? See full membership plans →