Virginia SOL K.3.d

ScienceKindergartenMatter

The Standard

relative sizes and weights of objects.

Virginia Standards of Learning for Science

Teacher's field guide

What Students Need to Do: Students compare two objects by how big they are and how heavy they are. They use words such as bigger, smaller, heavier, and lighter.
What Mastery Looks Like: Given two familiar objects, a student correctly describes which is bigger and which is heavier. The student uses a balance to check weight and explains that bigger does not always mean heavier.
Common Misconceptions: Students often assume the bigger object must be heavier. They may judge weight only by sight or reverse heavier and lighter when reading a balance.
How to Assess It: Place a large foam block and a small rock on a table. Ask students which is bigger, which is heavier, and how they could check.

Lesson moves

Pairs compare classroom objects by size, then place selected pairs on a pan balance to identify which is heavier.
Show a beach ball and a baseball, then ask, "Can the bigger object be lighter? Explain how you know."
Play Compare It: pairs choose two classroom objects, earn a point for correct comparison words, then check weight with a balance.
Compare two grocery bags with different items, then decide which bag a child should carry based on its size and weight.

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A ready-to-print activity worksheet aligned to K.3.d, with an answer key for the teacher on its own page. No account needed.

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