Grade 9 Science Worksheets

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Science · Grades 8–9

Atomic Number and Mass Number Worksheet

A printable science worksheet for grades 8-9 on atomic number and mass number. Students will use the atomic number and the mass number to find the protons, neutrons, and electrons in a neutral atom.

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Science · Grades 6–9

Genotype and Phenotype Worksheet

A printable science worksheet for grades 6-9 on genotype and phenotype. Students will read a genotype, name the phenotype it produces, and tell a homozygous pair from a heterozygous one.

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Earth Science

Science · Grades 6–9

Reading a Climate Graph Worksheet

Read a climate graph with rainfall bars on one scale and a temperature line on the other. Printable PDF with a complete answer key.

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Force and Motion

Science · Grades 7–9

Acceleration Worksheet

A printable science worksheet for grades 7-9 on acceleration. Students will calculate acceleration from a change in velocity and a time, and tell speeding up from slowing down.

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Science · Grades 7–9

Momentum Worksheet

A printable science worksheet for grades 7-9 on momentum. Students will calculate momentum from mass and velocity and explain why a heavy slow object can carry more momentum than a light fast one.

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Science · Grades 7–9

Work and Power Worksheet

A printable science worksheet for grades 7-9 on work and power. Students will calculate work from force and distance and power from work and time, and explain why holding something still does no work in the scientific sense.

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Genetics and Heredity

Science · Grades 7–9

Chromosomes and Karyotypes Worksheet

A printable science worksheet for grades 7-9 on chromosomes and karyotypes. Students will work out chromosome pairs from a total, tell an autosome from a sex chromosome, and explain why chromosome count does not measure complexity.

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Science · Grades 6–9

Dominant and Recessive Traits Worksheet

A printable science worksheet for grades 6-9 on dominant and recessive traits. Students learn how alleles pass traits from parents to offspring and how dominant and recessive alleles show up, match eight terms to clues, and answer four short-response questions. A complete answer key is included.

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Science · Grades 6–9

Genotype and Phenotype Worksheet

A printable science worksheet for grades 6-9 on genotype and phenotype. Students will read a genotype, name the phenotype it produces, and tell a homozygous pair from a heterozygous one.

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Science · Grades 7–9

Incomplete Dominance and Codominance Worksheet

A printable science worksheet for grades 7-9 on incomplete dominance and codominance. Students will tell incomplete dominance from codominance by what the heterozygote shows, and predict the offspring of a cross that follows each pattern.

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Science · Grades 6–9

Selective Breeding Worksheet

A printable science worksheet for grades 6-9 on selective breeding. Students will explain how choosing parents changes a population over generations, and tell an inherited trait from an acquired one.

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Science · Grades 7–9

Sex-Linked Traits Worksheet

A printable science worksheet for grades 7-9 on sex-linked traits. Students will explain why a sex-linked recessive trait appears more often in males, and read a sex-linked genotype as affected, carrier or not affected.

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Life Science

Science · Grades 6–9

Genetic Mutations Worksheet

A printable science worksheet for grades 6-9 on genetic mutations. Students learn how a mutation is a change in the DNA of a gene, what can cause one, and that some are harmful while others are harmless or helpful, match eight terms to clues, and answer four short-response questions. A diagram and complete answer key are included.

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Science · Grades 7–9

Mitosis and Meiosis Worksheet

A printable science worksheet for grades 7-9 on mitosis and meiosis. Students learn how mitosis makes two identical cells for growth while meiosis makes sex cells with half the chromosomes, match eight terms to clues, and answer four short-response questions. A labeled diagram and complete answer key are included.

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Science · Grades 6–9

Osmosis and Diffusion Worksheet

A printable science worksheet for grades 6-9 on osmosis and diffusion. Students learn how particles spread from high to low concentration and how water moves across a membrane, match eight terms to clues, and answer four short-response questions. A diagram and complete answer key are included.

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Science · Grades 7–9

Punnett Squares Worksheet

A printable science worksheet for grades 7-9 on Punnett squares. Students learn to predict offspring with a genetic cross grid, read a worked Tt by Tt example, answer eight questions, and complete four problems. A complete answer key is included.

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Science · Grades 7–9

Reading a Pedigree Chart Worksheet

Read a three-generation pedigree chart and work out whether the trait is dominant or recessive. Printable PDF with a complete answer key.

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Science · Grades 6–9

The Endocrine System Worksheet

A printable science worksheet for grades 6-9 on the endocrine system. Students learn how glands make hormones, study a labeled body diagram, match eight clues, and answer four questions. A complete answer key is included.

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Physical Science

Science · Grades 8–9

Atomic Number and Mass Number Worksheet

A printable science worksheet for grades 8-9 on atomic number and mass number. Students will use the atomic number and the mass number to find the protons, neutrons, and electrons in a neutral atom.

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Science · Grade 9

Balancing Chemical Equations Worksheet

A printable science worksheet for grade 9 on balancing chemical equations. Students will balance a chemical equation by adding coefficients until every element has the same number of atoms on both sides.

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Science · Grades 6–9

Buoyancy Worksheet

A printable science worksheet for grades 6-9 on buoyancy. Students learn why objects float or sink based on displaced water and density and meet Archimedes' principle, match eight terms to clues, and answer four short-response questions. A diagram and complete answer key are included.

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Science · Grades 6–9

Chemical Reactions Worksheet

A printable science worksheet for grades 6-9 on chemical reactions. Students learn about reactants, products, conservation of mass, and exothermic and endothermic reactions, match eight clues, then answer four questions. A complete answer key is included.

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Science · Grades 8–9

Counting Atoms in a Chemical Formula Worksheet

A printable science worksheet for grades 8-9 on counting atoms in a chemical formula. Students will count the atoms of each element in a chemical formula, reading subscripts, parentheses, and coefficients in the right order.

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Science · Grades 8–9

Ionic and Covalent Bonds Worksheet

A printable science worksheet for grades 8-9 on ionic and covalent bonds. Students will predict whether two elements form an ionic or a covalent bond and describe what happens to the electrons in each case.

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Science · Grades 8–9

Ions: Cations and Anions Worksheet

A printable science worksheet for grades 8-9 on ions: cations and anions. Students will explain how an atom becomes an ion by losing or gaining electrons, and will write an ion's charge from its proton and electron counts.

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Science · Grades 8–9

Isotopes Worksheet

A printable science worksheet for grades 8-9 on isotopes. Students will explain that isotopes of one element share a proton count and differ in neutrons, and will find the neutrons from an isotope name.

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Science · Grade 9

Naming Ionic Compounds Worksheet

A printable science worksheet for grade 9 on naming ionic compounds. Students will name a simple ionic compound by naming the metal first and changing the nonmetal's ending to -ide.

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Science · Grades 8–9

Periodic Table Families Worksheet

A printable science worksheet for grades 8-9 on periodic table families. Students will name the main families of the periodic table and use a family's group number to predict how many valence electrons its atoms have.

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Science · Grades 6–9

The Electromagnetic Spectrum Worksheet

A printable science worksheet for grades 6-9 on the electromagnetic spectrum. Students learn the bands from radio to gamma with a labeled diagram, match eight clues, then answer four questions. A complete answer key is included.

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Science · Grades 6–9

The Electron and Atomic Structure Worksheet

A printable science worksheet for grades 6-9 on atomic structure. Students learn how an atom has a nucleus of protons and neutrons with electrons moving around it, match eight terms to clues, and answer four short-response questions. A labeled diagram and complete answer key are included.

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Science · Grades 6–9

The pH Scale Worksheet

A printable science worksheet for grades 6-9 on the pH scale. Students learn how the 0-14 scale classifies liquids as acids, bases, or neutral and how indicators like litmus paper work, match eight terms to clues, and answer four short-response questions. A diagram and complete answer key are included.

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Science · Grade 9

Types of Chemical Reactions Worksheet

A printable science worksheet for grade 9 on types of chemical reactions. Students will classify a reaction as synthesis, decomposition, single replacement, double replacement, or combustion from its equation.

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Science · Grades 8–9

Valence Electrons and Electron Shells Worksheet

A printable science worksheet for grades 8-9 on valence electrons and electron shells. Students will fill electron shells in order and count the valence electrons in an atom of any of the first twenty elements.

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Science · Grades 6–9

Waves Worksheet

A printable science worksheet for grades 6-9 on waves. Students learn the parts of a wave from a labeled diagram, match eight clues, then answer four questions. A complete answer key is included.

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Space Science

Science · Grades 6–9

Black Holes Worksheet

A printable science worksheet for grades 6-9 on black holes. Students learn how a black hole's gravity is so strong that not even light can escape, and how one can form from a collapsing star, match eight terms to clues, and answer four short-response questions. A diagram and complete answer key are included.

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