Free Printable 8th Grade Biology Worksheets

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Coral Reef Poster Planning Worksheet

Printable middle school science worksheet for Grades 6–8: students plan a poster on coral reefs, answering questions about coral, reef importance, and reef animals.

Coral Reefs Poster Planning Sheet

Printable middle school planning worksheet for a coral reef poster project. Students answer prompts on coral and reef ecosystems, then sketch a poster design.

DNA and Traits

Printable 8th grade science quiz with five multiple-choice questions on DNA, inherited traits, and genetics.

Ecosystems and Biodiversity Quiz

Printable 8th grade science quiz with 11 multiple-choice questions on ecosystems, food chains, energy pyramids, and biodiversity.

Heredity, Genetics, and Evolution

Printable 8th grade biology worksheet covering heredity, genes, alleles, sex-linked traits, evolution, and natural variation in organisms.

Genetics Vocabulary Matching

Printable 8th grade biology worksheet: matching 11 genetics vocabulary terms including alleles, genotype, phenotype, dominant, and recessive.

Genetic Terms Matching Worksheet

Printable 8th grade genetics matching worksheet with 11 key terms including alleles, genotype, phenotype, dominant, and recessive traits.

Classification and Kingdoms Test

Printable 7th–8th grade science test covering classification taxonomy, kingdoms, cell structures, and characteristics of plants, animals, fungi, and protists.

End-of-Year Science Project

Printable end-of-year science project guide for Grades 6–8. Students choose a topic, conduct research, and create a binder with diagrams plus a tri-fold display board.

Classification and Taxonomy Quiz

Printable 8th grade biology quiz on classification and taxonomy, covering definitions, levels of organization, kingdoms, and autotrophs vs. heterotrophs.

Marine Biology: Fish Quiz

Printable marine biology quiz for Grades 4–8 with questions on fish anatomy, body temperature regulation, gills, schooling, and ectothermic adaptations.

Ecology and Biomes Quiz

Printable 8th grade science quiz on ecology and biomes with fill-in-the-blank and multiple-choice questions covering symbiosis, habitats, and biome types.

Reproduction Biology

Printable 8th grade reproduction biology worksheet with fill-in-the-blank and matching questions on asexual and sexual reproduction.

Cell Organelles

Printable 8th grade biology test on cell organelles with 24 multiple-choice and true/false questions covering mitochondria, chloroplasts, nucleus, and more.