Mississippi Science L.2.1.3

Science2nd GradeLife Science

The Standard

L.2.1: Students will demonstrate an understanding of the classification of animals based on physical characteristics.

Compare and contrast physical characteristics that distinguish between classes of vertebrates (i.e., reptiles compared to amphibians).

2026 Mississippi College- and Career-Readiness Standards for Science · Hierarchical Organization

Teacher's field guide

What Students Need to Do: Students sort animals into fish, amphibians, reptiles, birds, and mammals using visible body parts and coverings. They compare two groups and explain how they are alike and different.
What Mastery Looks Like: A student can identify a frog as an amphibian and a lizard as a reptile by pointing to smooth skin and scales. They can also name a trait the two animals share, such as four legs.
Common Misconceptions: Students may call a frog a reptile because it has four legs like a lizard. They may think every bird flies or that a crocodile is an amphibian because it swims.
How to Assess It: Show close-up photos of a frog and a lizard. Ask, "Which is the reptile? Which is the amphibian? Point to one visible difference and one feature they share."

Lesson moves

Give pairs photos of a salmon, frog, lizard, robin, and rabbit; have them sort the animals by body covering and body parts.
Ask partners, "How can you tell a frog from a lizard if both have four legs?" Have them write one difference.
Play "Find the evidence": show a mystery animal photo, then have teams point to a visible trait before naming its group.
Look at a schoolyard bird, sketch its feathers, and compare them with fur in a photo of a dog.

Free download

A ready-to-print activity worksheet aligned to L.2.1.3, with an answer key for the teacher on its own page. No account needed.

PDF, US Letter, prints cleanly in black and white.

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