Grade 9 Worksheets

8,916 grade resources
Grade 9 Science — Energy Molecules Worksheet for Mastery

Grade 9 Science — Energy Molecules Worksheet for Mastery

The Resource HubCreated byThe Resource Hub
ScienceGrade 9

Learning Objectives

  • Explain the structure of ATP and its role as the energy currency in cells.
  • Describe the process of ATP hydrolysis and energy release.
  • Understand how phosphorylation regenerates ATP and couples energy reactions.
$2.00
Grade 9 Science — Enzyme Basics Worksheet for Mastery

Grade 9 Science — Enzyme Basics Worksheet for Mastery

The Resource HubCreated byThe Resource Hub
ScienceGrade 9

Learning Objectives

  • Understand the structure and function of enzymes as biological catalysts.
  • Explain how enzymes lower activation energy and stabilize transition states.
  • Describe the role of protein structure, amino acids, cofactors, and coenzymes in enzyme activity.
$2.00
Grade 9 Science | Phylogenetic Trees Worksheet – NGSS Aligned (PDF + Answer Key)

Grade 9 Science | Phylogenetic Trees Worksheet – NGSS Aligned (PDF + Answer Key)

Lumora LearningCreated byLumora Learning
ScienceGrade 9

Learning Objectives

  • Understand how phylogenetic trees represent evolutionary relationships.
  • Interpret branch arrangements and shared traits in cladograms.
  • Learn methods of constructing phylogenetic trees using morphological and molecular data.
$2.00
Grade 9 Science | Variation Mechanisms Worksheet & Answer Key (NGSS Aligned)

Grade 9 Science | Variation Mechanisms Worksheet & Answer Key (NGSS Aligned)

Lumora LearningCreated byLumora Learning
ScienceGrade 9

Learning Objectives

  • Understand the genetic mechanisms that generate heritable diversity in populations.
  • Identify how point mutations, chromosomal rearrangements, and meiotic processes contribute to phenotypic variation.
  • Explain the connection between molecular changes and alterations in gene expression and protein function.
$2.00
Grade Science | Human Impacts on Biodiversity & Ecosystems Worksheet (Answer Key)

Grade Science | Human Impacts on Biodiversity & Ecosystems Worksheet (Answer Key)

Lumora LearningCreated byLumora Learning
ScienceGrade 9

Learning Objectives

  • Understand how land-use change, invasive species, pollution, and resource extraction affect biodiversity and ecosystem functions.
  • Analyze case studies such as deforestation, coral reef degradation, and agricultural runoff to evaluate environmental impacts.
  • Interpret empirical data and information to assess trade-offs among conservation efforts, resource provisioning, and socioecological outcomes.
$2.00
Grade 9 Science | Natural Selection Worksheet with Answer Key (PDF) – Evolution & NGSS

Grade 9 Science | Natural Selection Worksheet with Answer Key (PDF) – Evolution & NGSS

Lumora LearningCreated byLumora Learning
ScienceGrade 9

Learning Objectives

  • Understand the mechanisms of natural selection and how it leads to evolutionary change
  • Identify examples of natural selection in nature, such as beak morphology and bacterial resistance
  • Explain the concepts of variation, inheritance, and selective pressures in evolution
$2.00
Grade 9 Science | Evidence of Evolution Worksheet (PDF + Answer Key)

Grade 9 Science | Evidence of Evolution Worksheet (PDF + Answer Key)

Lumora LearningCreated byLumora Learning
ScienceGrade 9

Learning Objectives

  • Identify different types of empirical evidence supporting common ancestry.
  • Understand how fossils, anatomy, and molecular data contribute to evolutionary science.
  • Analyze examples such as transitional fossils, homologous structures, and DNA similarities.
$2.00
Grade 9 Science | Mechanical Energy Worksheet (PDF & Answer Key) for NGSS Alignment

Grade 9 Science | Mechanical Energy Worksheet (PDF & Answer Key) for NGSS Alignment

Lumora LearningCreated byLumora Learning
ScienceGrade 9

Learning Objectives

  • Describe the forms of mechanical energy including kinetic and potential energy.
  • Apply the work-energy theorem to analyze energy transfer in systems.
  • Explain the effect of non-conservative forces, such as friction, on mechanical energy.
$2.00
Grade 9 Science | Wave Properties Worksheet (Answer Key) – NGSS Aligned

Grade 9 Science | Wave Properties Worksheet (Answer Key) – NGSS Aligned

Lumora LearningCreated byLumora Learning
ScienceGrade 9

Learning Objectives

  • Understand and explain the amplitude, frequency, wavelength, and phase of waves.
  • Relate wave speed to frequency and wavelength in different types of waves.
  • Apply sinusoidal functions and superposition principles to explain interference and standing waves.
$2.00
Grade 9 Science | Transmission Tradeoffs Worksheet & Answer Key (NGSS-Aligned)

Grade 9 Science | Transmission Tradeoffs Worksheet & Answer Key (NGSS-Aligned)

Lumora LearningCreated byLumora Learning
ScienceGrade 9

Learning Objectives

  • Understand the fundamental tradeoffs involved in digital and analog communication systems.
  • Evaluate system performance metrics such as bandwidth, signal-to-noise ratio, and channel capacity.
  • Analyze case studies related to bandwidth limitations and error correction in communication systems.
$2.00
Grade 9 Science – Neuroendocrine Control Worksheet for Mastery

Grade 9 Science – Neuroendocrine Control Worksheet for Mastery

The Resource HubCreated byThe Resource Hub
ScienceGrade 9

Learning Objectives

  • Describe how the hypothalamus integrates neural inputs and secretes releasing factors.
  • Explain the structural features that support precise hormonal regulation in neuroendocrine systems.
  • Identify key components involved in the coordination of rapid signaling and hormone effects.
$2.00
Organelle Systems Worksheet for Grade 9 Science | TEKS-Aligned Practice

Organelle Systems Worksheet for Grade 9 Science | TEKS-Aligned Practice

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the concept of organelle systems and their role in cell function.
  • Identify different organelle interactions, such as energy transfer, lipid synthesis, and detoxification.
  • Explain how organelles cooperate to support cell growth, division, and environmental response.
$2.00
Organelle Functions Worksheet for Grade 9 Science – Printable PDF & Answer Key

Organelle Functions Worksheet for Grade 9 Science – Printable PDF & Answer Key

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Identify major eukaryotic organelles and describe their functions.
  • Connect organelle structure and composition to their cellular roles.
  • Understand how organelles collaborate within different tissue types.
$2.00
Membrane Structure Grade 9 Science Worksheet with Answer Key | TEKS

Membrane Structure Grade 9 Science Worksheet with Answer Key | TEKS

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Describe the basic components of the cell membrane, including the phospholipid bilayer and associated proteins.
  • Explain how the fluid mosaic model accounts for membrane fluidity and function.
  • Identify the roles of cholesterol, proteins, and carbohydrate chains in membrane permeability and cellular recognition.
$2.00
Grade 9 Science Worksheet | Comparative Structures in Cells | TEKS Aligned

Grade 9 Science Worksheet | Comparative Structures in Cells | TEKS Aligned

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand how organelle structures vary across different cell types and taxa.
  • Identify examples of morphological adaptations of organelles for specialized functions.
  • Relate cellular architecture to physiological roles and ecological strategies.
$2.00
Cell Theory Worksheet for Grade 9 Science | Printable PDF & Answer Key

Cell Theory Worksheet for Grade 9 Science | Printable PDF & Answer Key

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the key principles of cell theory and its historical development.
  • Differentiate between prokaryotic and eukaryotic cells based on their structures.
  • Explain the organization of unicellular versus multicellular organisms.
$2.00
Tissue Structure Grade 9 Science Worksheet | TEKS Aligned Practice & Answer Key

Tissue Structure Grade 9 Science Worksheet | TEKS Aligned Practice & Answer Key

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the different types of tissues and their cellular organization.
  • Identify the functions of epithelial, connective, muscle, and nervous tissues.
  • Describe how microscopic features determine tissue functions.
$2.00
Thermoregulation Worksheet for Grade 9 Science | Standard Practice PDF

Thermoregulation Worksheet for Grade 9 Science | Standard Practice PDF

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Explain the mechanisms of body temperature regulation through vasodilation and vasoconstriction.
  • Identify the role of sweat glands and muscle shivering in thermoregulation.
  • Describe how the hypothalamus coordinates thermoregulatory responses via neural and hormonal pathways.
$2.00
Grade 9 Science Worksheet on Neuroendocrine Control | TEKS Aligned

Grade 9 Science Worksheet on Neuroendocrine Control | TEKS Aligned

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand how the hypothalamus and pituitary gland coordinate hormonal responses.
  • Identify key anatomical features supporting neuroendocrine regulation.
  • Explain how structural specializations enable precise hormone control across organ systems.
$2.00
Classification Foundations Worksheet for Grade 9 Science | TEKS Aligned

Classification Foundations Worksheet for Grade 9 Science | TEKS Aligned

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the hierarchy and importance of biological classification systems.
  • Identify key features used to classify living organisms.
  • Differentiate between traditional and modern classification methods.
$2.00
Grade 9 Science Worksheet on Evidence Overview | TEKS Standards

Grade 9 Science Worksheet on Evidence Overview | TEKS Standards

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand how fossil, anatomical, and molecular evidence support evolutionary relationships.
  • Describe how different lines of evidence complement each other in reconstructing evolutionary history.
  • Recognize the importance of consistency among evidence types for determining descent with modification and divergence timing.
$2.00
Basics of Evolution Science Worksheet Grade 9 | TEKS-Aligned Practice

Basics of Evolution Science Worksheet Grade 9 | TEKS-Aligned Practice

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the fundamental mechanisms that drive evolution in populations.
  • Identify the roles of natural selection, genetic drift, mutation, and gene flow.
  • Explain how these mechanisms contribute to genetic variation and adaptation.
$2.00
Grade 9 Science Worksheet on Fossil Records TEKS Alignment

Grade 9 Science Worksheet on Fossil Records TEKS Alignment

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the role of fossil records in studying Earth's history.
  • Identify how stratigraphy and radiometric dating determine fossil ages.
  • Explain the significance of transitional fossils and preservation bias.
$2.00
Genetic Drift Worksheet for Grade 9 Science | TEKS Aligned

Genetic Drift Worksheet for Grade 9 Science | TEKS Aligned

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the concept of genetic drift and its effects on populations.
  • Identify examples of genetic drift such as bottlenecks and founder effects.
  • Explain how chance events influence evolutionary pathways in small populations.
$2.00
Molecular Evidence Worksheet for Grade 9 Science | TEKS Aligned

Molecular Evidence Worksheet for Grade 9 Science | TEKS Aligned

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand how DNA, RNA, and protein sequences are compared to infer evolutionary relationships.
  • Explain the concept of homologous genes and sequence divergence as molecular clocks.
  • Recognize the significance of conserved genetic patterns in understanding lineage relationships.
$2.00
Understanding Phylogenetic Trees Science Worksheet Grade 9 | TEKS

Understanding Phylogenetic Trees Science Worksheet Grade 9 | TEKS

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Explain what phylogenetic trees depict in evolutionary biology.
  • Identify key features of phylogenetic trees such as common ancestors and branching points.
  • Differentiate between rooted and unrooted trees and their uses.
$2.00
Grade 9 Science Worksheet on Speciation Introduction TEKS Aligned PDF

Grade 9 Science Worksheet on Speciation Introduction TEKS Aligned PDF

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the process of speciation and how it leads to biodiversity.
  • Identify different reproductive barriers involved in speciation.
  • Distinguish between allopatric and sympatric speciation.
$2.00
Biogeochemical Cycles Worksheet for Grade 9 Science TEKS aligned

Biogeochemical Cycles Worksheet for Grade 9 Science TEKS aligned

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the main components and processes involved in biogeochemical cycles.
  • Identify the roles of key processes such as photosynthesis, decomposition, nitrogen fixation, and weathering.
  • Explain how cycle rates and reservoir sizes affect ecosystem responses to environmental disturbances.
$2.00
Community Interactions Worksheet for Grade 9 Science TEKS Alignment

Community Interactions Worksheet for Grade 9 Science TEKS Alignment

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Describe various types of species interactions such as competition, predation, and mutualism.
  • Explain the role of keystone species and ecosystem engineers in community structure.
  • Analyze indirect effects and emergent properties using network approaches.
$2.00
Ecosystem Services Worksheet for Grade 9 Science TEKS Practice PDF

Ecosystem Services Worksheet for Grade 9 Science TEKS Practice PDF

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Define ecosystem services and identify their major types.
  • Explain the importance of biodiversity in sustaining ecosystem functions.
  • Assess human impacts such as land-use change and pollution on ecosystem services.
$2.00
Energy Flow Worksheet for Grade 9 Science | Standard Practice and Assessment

Energy Flow Worksheet for Grade 9 Science | Standard Practice and Assessment

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Explain how energy moves through ecosystems from producers to consumers and decomposers.
  • Understand the process of energy transfer via photosynthesis and trophic levels.
  • Describe the concept of energy loss at each level and its impact on food chain length.
$2.00
Human Impacts Grade 9 Science Worksheet | TEKS Practice & Assessment

Human Impacts Grade 9 Science Worksheet | TEKS Practice & Assessment

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand how human activities affect biodiversity and ecosystem services.
  • Identify specific impacts such as land conversion, pollution, and resource extraction.
  • Explain the effects of habitat fragmentation and nutrient runoff on ecosystems.
$2.00
Nutrient Cycling Worksheet for Grade 9 Science | TEKS Aligned

Nutrient Cycling Worksheet for Grade 9 Science | TEKS Aligned

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the processes involved in nutrient cycling, including nitrogen fixation, assimilation, mineralization, and denitrification.
  • Explain how physical transport and human activities influence nutrient availability in ecosystems.
  • Analyze the impact of excess nutrients on aquatic systems and processes like eutrophication.
$2.00
Population Ecology Worksheet for Grade 9 Science | TEKS Aligned

Population Ecology Worksheet for Grade 9 Science | TEKS Aligned

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the key factors that influence population growth and decline.
  • Identify the difference between density-dependent and density-independent factors.
  • Explain how population patterns affect community interactions and ecosystem dynamics.
$2.00
Grade 9 Science Worksheet on Resilience and Resistance | TEKS Standard

Grade 9 Science Worksheet on Resilience and Resistance | TEKS Standard

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the concepts of ecological resilience and resistance in ecosystems.
  • Identify factors that influence an ecosystem's ability to withstand disturbance and recover.
  • Explain how crossing thresholds can lead to regime shifts and alternative community states.
$2.00
Ecological Succession Worksheet for Grade 9 Science | TEKS Aligned

Ecological Succession Worksheet for Grade 9 Science | TEKS Aligned

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the stages and types of ecological succession and their characteristics.
  • Identify factors influencing succession dynamics and community changes over time.
  • Explain how succession models predict long-term ecosystem responses to environmental changes.
$2.00
Grade 9 Science Worksheet on Trophic Structure | TEKS Aligned

Grade 9 Science Worksheet on Trophic Structure | TEKS Aligned

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Identify the roles of producers, consumers, and decomposers in an ecosystem's trophic structure.
  • Describe how energy flows through food chains and webs.
  • Explain the concepts of trophic efficiency and trophic cascades and their impact on ecosystems.
$2.00
Biotech Applications Science Worksheet for Grade 9 | TEKS Aligned

Biotech Applications Science Worksheet for Grade 9 | TEKS Aligned

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Describe common molecular techniques used in biotechnology.
  • Identify various applications of biotechnology in medicine, agriculture, and forensics.
  • Understand ethical, legal, and societal considerations related to biotech advancements.
$2.00
Biotech Ethics Worksheet Grade 9 Science TEKS Practice PDF

Biotech Ethics Worksheet Grade 9 Science TEKS Practice PDF

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand key ethical considerations in biotechnology.
  • Identify societal implications of genetic manipulation.
  • Evaluate risks versus benefits in biotechnological applications.
$2.00
Complex Inheritance Worksheet for Grade 9 Science TEKS aligned

Complex Inheritance Worksheet for Grade 9 Science TEKS aligned

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the key concepts of complex inheritance including polygenic traits, epistasis, and pleiotropy.
  • Recognize how variable penetrance and expressivity influence phenotype expression.
  • Learn about linkage and environmental effects on genetic traits.
$2.00
DNA Replication Worksheet for Grade 9 Science | TEKS Aligned Practice

DNA Replication Worksheet for Grade 9 Science | TEKS Aligned Practice

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the process of DNA replication and its key steps.
  • Identify the roles of enzymes such as helicase, primase, and DNA polymerase.
  • Explain the significance of replication fidelity and its impact on genome stability.
$2.00
Gene Expression Worksheet for Grade 9 Science TEKS Standard Practice

Gene Expression Worksheet for Grade 9 Science TEKS Standard Practice

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Describe the processes of transcription and translation in gene expression.
  • Identify the roles of DNA, mRNA, tRNA, and ribosomes in protein synthesis.
  • Explain how regulation at transcriptional and translational stages influences gene activity.
$2.00
Genetic Data Analysis Worksheet for Grade 9 Science | TEKS Standard

Genetic Data Analysis Worksheet for Grade 9 Science | TEKS Standard

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand methods used to interpret genetic data, including genotype and phenotype analysis.
  • Identify techniques such as PCR markers, nucleotide variants, and sequencing reads.
  • Compare observed and expected inheritance patterns to detect linkage or selection.
$2.00
Inheritance Patterns Science Worksheet Grade 9 TEKS Practice PDF

Inheritance Patterns Science Worksheet Grade 9 TEKS Practice PDF

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Explain Mendelian inheritance and its principles of segregation and independent assortment.
  • Identify and differentiate between Mendelian and non-Mendelian inheritance patterns.
  • Recognize how environmental factors and gene linkage influence phenotypic traits.
$2.00
Grade 9 Science Worksheet on Nucleic Acid Structure | TEKS Aligned

Grade 9 Science Worksheet on Nucleic Acid Structure | TEKS Aligned

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Describe the chemical structures of DNA and RNA and their nucleotide components.
  • Explain the significance of complementary base pairing in DNA replication and transcription.
  • Identify key structural differences between DNA and RNA and their functional implications.
$2.00
Grade 9 Science Pedigree Analysis Worksheet with Answer Key PDF

Grade 9 Science Pedigree Analysis Worksheet with Answer Key PDF

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand the symbols and conventions used in pedigree charts.
  • Identify inheritance patterns such as autosomal dominant, recessive, X-linked, and mitochondrial.
  • Interpret pedigree data to determine likely genotypes and modes of inheritance.
$2.00
Regulatory Mechanisms Worksheet for Grade 9 Science TEKS Practice

Regulatory Mechanisms Worksheet for Grade 9 Science TEKS Practice

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Understand how gene expression is controlled through regulatory mechanisms.
  • Identify the roles of promoters, enhancers, silencers, and transcription factors in transcription.
  • Explain how epigenetic modifications influence chromatin structure and gene activity.
$2.00
Grade 9 Science Worksheet on The Calvin Cycle | TEKS Aligned

Grade 9 Science Worksheet on The Calvin Cycle | TEKS Aligned

Coral Reef LearningCreated byCoral Reef Learning
ScienceGrade 9

Learning Objectives

  • Describe the main processes and phases of the Calvin cycle.
  • Identify the role of key enzymes and molecules in carbon fixation and sugar synthesis.
  • Explain how energy carriers like ATP and NADPH are utilized in photosynthesis.
$2.00

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About Grade 9 Worksheets

Browse 8,916 printable Grade 9 worksheets across algebra, biology, literature, and history — each a ready-to-print PDF with optional answer keys.

Every worksheet on MyTeachingSheets is created by independent teacher-authors and reviewed before publication. All resources download as printable PDFs for classroom, homework, or at-home practice, and many include answer keys. Preview any worksheet free before buying.