Free Printable 3rd Grade Biology Worksheets
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Bacteria and Decomposers
Printable science worksheet on bacteria: students read about decomposers, record facts about size and habitat, and learn how bacteria break down waste.
Decomposers and Ecosystems
Printable science worksheet on decomposers and their role in breaking down waste and enriching soil. Includes a reading passage, short-answer questions, and true-or-false statements.
Seedless Fruits and Plant Mutations
Printable science worksheet on plant mutations and seedless fruits, with fill-in-the-blank questions and vocabulary about mutations and sterile plants.
Heredity and Traits Unit Review
Printable science unit review with five multiple-choice questions on heredity, traits, and how offspring inherit characteristics from parents.
How Kittens Inherit Traits From Parents
Elementary science worksheet about heredity and inherited traits using kittens as an example. Students identify which parent traits the kitten inherited.
Inherited Traits and Animal Offspring
Printable science worksheet on heredity and traits using a cat family picture: students observe and answer yes/no questions about inherited characteristics.
Habitat Changes and Extinction
Printable 3rd grade science worksheet on habitat changes and extinction, covering species extinction, dinosaurs, mass extinction, and endangered species.
Species and Varieties
Printable elementary science worksheet on species and varieties with multiple-choice and fill-in-the-blank vocabulary practice using apple and orange trees.
Life Cycle Unit Vocabulary
Printable 3rd grade science vocabulary worksheet: matching activity with 11 life-cycle terms including organism, metamorphosis, germinate, and life cycle.
Butterfly Life Cycle
Printable science worksheet on the butterfly life cycle: fill-in-the-blank activity with vocabulary words egg, caterpillar, chrysalis, and butterfly, plus a drawing prompt.
Week 6 Review: Science and Math
Printable Week 6 review worksheet for Grades 3–4 covering living things, environments, rounding, time, and word problems.
Fungi and Mushrooms: True or False
Printable science worksheet for Grades 3–6 with 20 true-or-false questions on fungi, mushrooms, decomposition, antibiotics, and hallucinogenic effects.
Animal and Plant Structures Exit Ticket
Printable exit ticket for Grades 3–5 on animal and plant structures. Students match definitions and identify internal and external structures.
Science Vocabulary Matching
Printable 3rd grade science vocabulary matching worksheet covering metamorphosis, disease, constraints, and engineering terms.
Life Cycles Vocabulary Matching
Printable 3rd grade science vocabulary worksheet: 12 matching questions on life cycles, including metamorphosis, birth, growth, and reproduction.
Life Science Test
Printable 3rd grade life science test with multiple-choice and short-answer questions on life cycles, habitats, adaptations, and inherited traits.
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