Mississippi Science L.4.2.1

Science4th GradeLife Science

The Standard

L.4.2: Students will demonstrate an understanding of life cycles, including familiar plants and animals (e.g., reptiles, amphibians, or birds).

Compare and contrast life cycles of familiar plants and animals.

2026 Mississippi College- and Career-Readiness Standards for Science · Reproduction and Heredity

Teacher's field guide

What Students Need to Do: Students put the stages of a bean plant and a butterfly in order, then show how each cycle repeats. They compare how the two organisms grow and make new plants or animals.
What Mastery Looks Like: A student can label a cycle from bean seed to plant to new seeds, and another from butterfly egg to adult to new eggs. They can explain that both cycles repeat, but only the butterfly has a caterpillar and pupa stage.
Common Misconceptions: Students may think a caterpillar and a butterfly are different animals. They may also end the bean plant's cycle at the flower and leave out the new seeds.
How to Assess It: Give students four bean plant stage pictures and four butterfly stage pictures. Ask them to arrange each set in a loop and write one similarity and one difference.

Lesson moves

Give pairs printed bean plant and butterfly stage cards to arrange in two loops, with arrows showing what comes next.
Ask students to write: What happens after a bean plant flowers, and what happens after a caterpillar becomes a butterfly?
Play a card swap game where partners trade stage cards, then race to rebuild both cycles and check each other's arrows.
Show a tomato with seeds and a photo of a butterfly; ask how each could begin another life cycle.

Free download

A ready-to-print activity worksheet aligned to L.4.2.1, 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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