Free Printable WorksheetScienceGrade 3Science CurriculumSCI.3.26

3.26 Environmental Influences on Traits Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 3 Science worksheet provides structured practice on 3.26 Environmental Influences on Traits. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Environmental Influences on Traits - Which evidence best explains that traits can also be influenced by the environment (sunlight, food, exercise). (NGSS 3-LS3-2; CCC: Cause and Effect)

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Grade 3

Subject

Science

Domain

Science Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 3.26 Environmental Influences on Traits skill assessments:

Problem 1Difficulty: Mastery

A student wants to test if a new fish food changes fish color.He sets up two tanks with the same kind of fish.Tank 1: new foodTank 2: old foodBut Tank 1 is in sunlight and Tank 2 is under a dim lamp.

What should he do to make his evidence stronger?

AKeep light the same for both tanks so food is the only difference.

BUse different fish species in each tank.

CChange both food and water temperature too.

DMeasure only one fish and guess the rest.

Solution & Explanation:Two variables (food and light) changed, so the cause is unclear. Controlling light strengthens the test of food's effect on color.

Problem 2Difficulty: Mastery

A teacher says, "Traits can be influenced by both heredity and environment."Which example best shows BOTH at work?A) A child has curly hair and gets a tan in summer.B) A child has curly hair because of sunscreen.C) A child gets a tan because of eye color.D) A child has curly hair because of exercise.

Which example is best, and why?

AB, because sunscreen changes hair shape.

BD, because exercise changes hair curl.

CA, because curly hair can be inherited while tanning is influenced by sunlight.

DC, because eye color causes tanning.

Solution & Explanation:Curly hair is largely inherited. A tan is caused by sun exposure. The example shows an inherited trait and an environmentally influenced trait together.

Problem 3Difficulty: Mastery

A student wonders why a group of classroom plants have brown leaf edges.Possible causes:1) Too little water2) Too much salt in the soil3) Not enough sunlightHe learns that the plants in the back of the room (less light) and front (more light) both have brown edges.But only the plants watered once a week have brown edges.

Which cause is best supported by the evidence?

ANone, because traits can never change.

BToo little water (cause 1) is best supported because brown edges match the watering pattern, not the light pattern.

CCause 3, because plants need light.

DCause 2, because salt is always the problem.

Solution & Explanation:The evidence rules out light because both light levels show brown edges. The trait appears only when watering is low, so water is the most supported environmental cause.

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Frequently Asked Questions

Common questions about printing, using, and solving this worksheet

QHow do I download and print this 3.26 Environmental Influences on Traits worksheet?

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QIs this 3.26 Environmental Influences on Traits worksheet free for teachers and homeschoolers?

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QCan students practice 3.26 Environmental Influences on Traits online with instant feedback?

Yes! In addition to this printable worksheet, students can practice 3.26 Environmental Influences on Traits interactively on our platform with automated grading, instant score tracking, and detailed step-by-step solutions.

QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 3 Science students. It aligns with educational standard SCI.3.26 (Grade 3 science skill focused on Environmental Influences on Traits.).