Science · Curriculum resources

Heredity and Genetics Worksheets and Activities

Explore our collection of Heredity and Genetics curriculum resources for grades K-8. These worksheets, activities, reading passages, and games help students understand traits, genes, DNA, and reproduction. Find no-prep, standards-aligned materials for your classroom.

Passage
Gregor Mendel: The Father of Genetics - reading educational content
Grades 5–8

Gregor Mendel: The Father of Genetics

Reading Passage · MS-LS3-1

Free
Passage
Why Siblings Aren’t Identical: Understanding Genetic Variation - reading educational content
Grades 5–8

Why Siblings Aren’t Identical: Understanding Genetic Variation

Reading Passage · MS-LS3-1

$1.50
Passage
Understanding Homozygous Traits - reading educational content
Grades 5–8

Understanding Homozygous Traits

Reading Passage · MS-LS3-1

Free
Passage
Inherited Traits and How They Are Passed On - reading educational content
Grades 5–8

Inherited Traits and How They Are Passed On

Reading Passage · MS-LS3-1

$1.50
Passage
What Does It Mean to Be Heterozygous? - reading educational content
Grades 5–8

What Does It Mean to Be Heterozygous?

Reading Passage · MS-LS3-1

Free
Passage
What Is a Genotype? - reading educational content
Grades 5–8

What Is a Genotype?

Reading Passage · MS-LS3-1

Free
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Passage
What Is a Phenotype? - reading educational content
Grades 5–8

What Is a Phenotype?

Reading Passage · MS-LS3-1

$1.50
Passage
Genotype vs. Phenotype - reading educational content
Grades 5–8

Genotype vs. Phenotype

Reading Passage · MS-LS3-1

$1.50
Passage
What Are Alleles? - reading educational content
Grades 5–8

What Are Alleles?

Reading Passage · MS-LS3-1

Free
Passage
Predicting Traits with Punnett Squares - reading educational content
Grades 5–8

Predicting Traits with Punnett Squares

Reading Passage · MS-LS3-1

$1.50
Passage
What Is a Recessive Allele? - reading educational content
Grades 5–8

What Is a Recessive Allele?

Reading Passage · MS-LS3-1

Free
Passage
Understanding Self-Pollination - reading educational content
Grades 5–8

Understanding Self-Pollination

Reading Passage · MS-LS3-1

Free
Passage
How Cross-Pollination Creates Genetic Variety - reading educational content
Grades 5–8

How Cross-Pollination Creates Genetic Variety

Reading Passage · MS-LS3-1

Free
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Passage
Disadvantages of Sexual Reproduction - reading educational content
Grades 5–8

Disadvantages of Sexual Reproduction

Reading Passage · MS-LS3-1

Free
Passage
Disadvantages of Asexual Reproduction - reading educational content
Grades 5–8

Disadvantages of Asexual Reproduction

Reading Passage · MS-LS3-1

$1.50
Passage
Asexual Reproduction Examples in Nature - reading educational content
Grades 5–8

Asexual Reproduction Examples in Nature

Reading Passage · MS-LS3-2

$1.50
Passage
Types of Asexual Reproduction - reading educational content
Grades 5–8

Types of Asexual Reproduction

Reading Passage · MS-LS3-2

$1.50
Passage
DNA as Genetic Material - reading educational content
Grades 5–8

DNA as Genetic Material

Reading Passage · MS-LS3-1

$1.50
Passage
Seed Dispersal - reading educational content
Grades 5–8

Seed Dispersal

Reading Passage · MS-LS1-4

$1.50
Passage
History of Genetics - reading educational content
Grades 5–8

History of Genetics

Reading Passage · MS-LS3-1

$1.50
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Passage
Meiosis - reading educational content
Grades 5–8

Meiosis

Reading Passage · MS-LS3-2

Free
Passage
Complex Inheritance Patterns - reading educational content
Grades 5–8

Complex Inheritance Patterns

Reading Passage · MS-LS3-2

$1.50
Passage
Probability in Genetics - reading educational content
Grades 5–8

Probability in Genetics

Reading Passage · MS-LS3-2

$1.50
Passage
Mendelian Inheritance Patterns - reading educational content
Grades 5–8

Mendelian Inheritance Patterns

Reading Passage · MS-LS3-2

Free
Passage
Punnett Squares - reading educational content
Grades 5–8

Punnett Squares

Reading Passage · MS-LS3-2

$1.50
Passage
Dominant and Recessive Alleles - reading educational content
Grades 5–8

Dominant and Recessive Alleles

Reading Passage · MS-LS3-2

$1.50
Passage
Genotype and Phenotype - reading educational content
Grades 5–8

Genotype and Phenotype

Reading Passage · MS-LS3-1

$1.50
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Passage
Chromosomes, Genes, and Traits - reading educational content
Grades 5–8

Chromosomes, Genes, and Traits

Reading Passage · MS-LS3-1

Free
Passage
Inherited vs. Acquired Traits - reading educational content
Grades 5–8

Inherited vs. Acquired Traits

Reading Passage · MS-LS3-1

$1.50
Passage
Mutations and Genetic Variation - reading educational content
Grades 5–8

Mutations and Genetic Variation

Reading Passage · MS-LS3-1

Free
Passage
Genetic Disorders - reading educational content
Grades 5–8

Genetic Disorders

Reading Passage · MS-LS3-2

$1.50
Passage
Asexual vs Sexual Reproduction - reading educational content
Grades 5–8

Asexual vs Sexual Reproduction

Reading Passage · MS-LS1-4

$1.50
Passage
Fertilization and Early Development - reading educational content
Grades 5–8

Fertilization and Early Development

Reading Passage · MS-LS1-4

$1.50
Passage
Plant Reproduction - reading educational content
Grades 5–8

Plant Reproduction

Reading Passage · MS-LS1-4

$1.50
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Passage
Homozygous vs. Heterozygous: Genotype Definitions - reading educational content
Grade 6

Homozygous vs. Heterozygous: Genotype Definitions

Reading Passage

$1.50
Passage
How Homozygosity Affects Phenotype - reading educational content
Grade 6

How Homozygosity Affects Phenotype

Reading Passage

$1.50
Passage
Asexual Reproduction in Bacteria - reading educational content
Grade 6

Asexual Reproduction in Bacteria

Reading Passage

$1.50
Passage
ABO and Rh Blood Group Systems - reading educational content
Grade 6

ABO and Rh Blood Group Systems

Reading Passage

$1.50

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About these Heredity and Genetics worksheets and activities

Heredity and Genetics concepts build from simple observations in early grades to deeper understanding in upper elementary. In kindergarten through second grade, students explore traits and variation by comparing physical features of plants and animals. They learn that offspring resemble parents but can have differences. In third through fifth grade, students dive into genes and DNA, discovering how traits are passed from generation to generation. They also study reproduction, including the basics of life cycles and inheritance.

Our resources scaffold this progression with differentiated worksheets, interactive games, and literacy-rich readers. Students practice identifying inherited traits, analyzing patterns, and using evidence to explain variation. Related concepts include dominant and recessive traits, chromosomes, and heredity in humans and other organisms. The subtopics of Traits and Variation, Genes and DNA, and Reproduction are woven throughout the grade levels, ensuring a cohesive learning experience.

What these worksheets cover

  • Traits and Variation
  • Genes and DNA
  • Reproduction

Using these in your classroom

Teachers can use this hub to select the right level for whole-group instruction, then differentiate for small groups, centers, or independent practice. Printable worksheets work well for homework or intervention, while digital games engage students during review or assessment. Scaffolded resources allow you to support struggling learners and challenge advanced students. Use the readers for literacy centers and the graphic organizers for science notebooks. Mix and match across grades to meet individual student needs in a mixed-ability classroom.

Standards alignment

These resources align with grade-level Common Core standards for reading informational text and writing, as well as Next Generation Science Standards for heredity and biological evolution across grades K-5.

Frequently asked questions

Are these Heredity and Genetics worksheets printable?

Yes, many of our Heredity and Genetics worksheets printable resources are available in PDF format for easy printing. Some are free, while others require a paid membership. You can also access digital versions for online use.

Are these Heredity and Genetics worksheets for kids?

Absolutely. Our Heredity and Genetics worksheets for kids are designed for grades K-5, with age-appropriate content and activities. They include hands-on tasks, reading passages, and games that make learning fun.

What grades do these resources cover?

Our Heredity and Genetics resources span grades K-8, with a focus on K-5. Each resource indicates the recommended grade level, so you can choose the right fit for your students.

Do I need a membership to access all resources?

Some resources are free, but most require a paid Workybooks membership. A membership gives you unlimited access to all printable and digital resources, including worksheets, games, and activities.