NGSS MS-LS1-5
The Standard
Construct a scientific explanation based on evidence for how environmental and genetic factors influence the growth of organisms.
Next Generation Science Standards
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students compare growth data and identify environmental conditions and inherited traits that could explain differences. They make a claim, cite evidence, and connect that evidence to the claim with reasoning.
What Mastery Looks Like
- Given a table, graph, or investigation, students identify evidence of environmental and inherited influences on growth. They write a clear claim and explain how specific data support it.
Common Misconceptions
- Students may assume all growth differences are genetic or all are caused by the environment. They may treat correlation as proof, or confuse growth with health, development, or reproduction.
How to Assess It
- Exit ticket: Variety A grows 12 cm in full light and 5 cm in low light. Variety B grows 8 cm and 3 cm. Explain how light and plant variety influence growth, citing two values.
Lesson moves
Ways to Teach It
Grow two radish varieties under full and limited light, then measure height weekly and graph the results.
Ask students to write which factors might explain why identical seedlings grow differently in two classroom locations.
Use factor cards and growth scenarios for teams to sort causes as environmental, genetic, both, or unsupported.
Compare seed catalog descriptions for two tomato varieties, then predict how sunlight, water, and variety could affect plant growth.
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Printable MS-LS1-5 Worksheet
A ready-to-print activity worksheet aligned to MS-LS1-5, with an answer key for the teacher on its own page. No account needed.
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