Grade 9 Worksheets

Learning Objectives

• Understand the concepts of gravitational and electrostatic forces
• Interpret and analyze inverse-square law relationships
• Calculate forces between celestial bodies and charged particles+ Show more

Learning Objectives

• Define linear momentum and explain its significance in physics.
• Describe the principle of conservation of momentum in isolated systems.
• Distinguish between elastic and inelastic collisions using examples.+ Show more

Learning Objectives

• Understand the basic concepts of Newton's first and second laws
• Analyze free-body diagrams and force components
• Relate net force to acceleration in constant mass systems+ Show more

Learning Objectives

• Explain how solar energy enters Earth's atmosphere
• Describe the processes by which Earth loses energy
• Identify the factors affecting Earth's surface temperatures+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Understand how rivers shape Earth's surface through erosion and transport
• Analyze river discharge and sediment data to interpret landscape changes
• Identify the processes of erosion, transportation, and deposition in river systems+ Show more

Learning Objectives

• Understand the process of igneous rock formation from cooling magma
• Identify the different pathways of rock transformation in the rock cycle
• Explain how pressure and temperature influence metamorphic rocks+ Show more

Learning Objectives

• Understand what causes landslides.
• Identify the effects of landslides on landscapes.
• Analyze how landslides contribute to Earth's surface changes.+ Show more

Learning Objectives

• Understand the concept of evaluating design solutions using performance metrics.
• Learn how qualitative and quantitative assessments influence decision making.
• Analyze various performance metrics, life-cycle costs, and environmental impacts.+ Show more

Learning Objectives

• Compare digital and analog signals and their applications
• Explain the concepts of bandwidth, signal-to-noise ratio, and sampling criteria
• Identify techniques used for error correction and maintaining signal fidelity+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Understand how photovoltaic cells convert sunlight into electrical energy.
• Identify the process and efficiency of energy conversion devices.
• Analyze energy losses during conversion and the principles of energy conservation.+ Show more

Learning Objectives

• Understand the different methods of heat transfer: conduction, convection, and radiation.
• Identify examples of heat transfer in everyday scenarios.
• Calculate thermal energy transfer using specific heat capacity, mass, and temperature change.+ Show more

Learning Objectives

• Understand the concepts of kinetic and potential energy
• Learn how energy transforms and conserves in mechanical systems
• Identify examples of energy transfer such as in pendulums and roller coasters+ Show more

Learning Objectives

• Differentiate between power and energy and understand their units.
• Identify how power ratings affect household energy consumption.
• Calculate energy demand over time using power ratings.+ Show more

Learning Objectives

• Understand the importance of fossils in tracing evolutionary history.
• Identify key examples of transitional fossils such as Tiktaalik.
• Analyze how comparative anatomy supports the theory of evolution.+ Show more

Learning Objectives

• Understand the basic concept of natural selection
• Identify mechanisms that generate variation in populations
• Explain how heritable traits influence survival and reproduction+ Show more

Learning Objectives

• Understand the basic concept of phylogenetic trees and their purpose in biology.
• Learn how to interpret branching diagrams showing evolutionary relationships.
• Identify shared derived characters used to construct phylogenetic trees.+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Understand how deforestation affects biodiversity.
• Analyze case studies of human impacts on ecosystems.
• Interpret empirical data related to land-use change and habitat loss.+ Show more

Learning Objectives

• Understand the key pathways of nutrient cycling involving carbon, nitrogen, and phosphorus.
• Identify reservoirs and fluxes within nutrient cycles.
• Recognize how microbial decomposition, fixation, mineralization, and sedimentation contribute to nutrient flow.+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Understand the process of photosynthesis and how it contributes to energy flow in ecosystems.
• Identify key factors affecting photosynthesis rates and biomass accumulation.
• Explain the importance of producers like plants and algae in cycling carbon and oxygen.+ Show more

Learning Objectives

• Understand the flow of energy through trophic levels in an ecosystem
• Identify the structure and components of food webs
• Describe concepts of biomass distribution, production-to-biomass ratios, and ecological efficiency+ Show more

Learning Objectives

• Understand the structure and function of DNA and chromosomes
• Describe the process of DNA replication and chromosomal segregation during meiosis
• Identify how hereditary information is transmitted across generations+ Show more

Learning Objectives

• Understand the principles of dominant and recessive alleles.
• Describe how traits are inherited according to Mendel's laws.
• Use Punnett squares to predict genetic outcomes.+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Understand the concept of energy conservation and energy bookkeeping
• Identify different forms of energy within a system
• Explain system boundaries and energy transfer mechanisms+ Show more

Learning Objectives

• Identify the main idea of a passage about catabolic pathways and energy release
• Describe how enzymes and ATP relate to breakdown reactions
• Distinguish key terms such as catabolism, intermediates, and energy output

Learning Objectives

• Identify key components of cell signaling (receptor, ligand, and signal pathway).
• Explain how signals move through cells to produce a response.
• Distinguish between signal reception and downstream processing.

Learning Objectives

• Identify how insulin and glucagon change blood glucose levels.
• Explain the negative feedback loop idea using hormones and body tissues.
• Use key terms (insulin, glucagon, glycogenolysis, gluconeogenesis, beta cells, alpha cells) in context.

Learning Objectives

• Identify the main idea of a feedback loop passage
• Define and use key vocabulary related to homeostasis

Learning Objectives

• Define diffusion and concentration gradients using accurate vocabulary.
• Explain how passive transport differs from active transport in terms of energy use.
• Describe how water moves by osmosis and how bulk movement can occur via vesicles.

Learning Objectives

• Identify the main idea of a science text about ecological succession
• Distinguish key details about primary succession and how ecosystems change over time
• Explain, in writing, how succession can shift habitat conditions and species composition

Learning Objectives

• Explain the main idea of electron transport and its purpose in cells.
• Identify and use key vocabulary related to electron carriers, proton pumping, and ATP production.

Learning Objectives

• Identify the main idea of a scientific passage about DNA replication.
• Explain key details of semi-conservative DNA replication.
• Use vocabulary from the passage (helicase, primase, leading strand, lagging strand, Okazaki fragments).+ Show more

Learning Objectives

• Identify the main idea of an informational science passage
• Use context clues to define key vocabulary related to enzymes and metabolism
• Explain how enzyme activity connects to metabolic pathways

Learning Objectives

• Identify the main idea of an informational science passage about integrated metabolism
• Describe how catabolic and anabolic pathways connect to meet energy needs
• Use evidence from the text to answer questions about energy trade-offs

Learning Objectives

• Identify the main idea of light reactions in thylakoid membranes
• Describe key steps: photon absorption, electron flow, and proton gradient formation
• Explain how water splitting replenishes electrons and releases oxygen

Learning Objectives

• Identify the main function of the respiratory system in gas exchange.
• Identify the main function of the cardiovascular system in transporting gases and nutrients.
• Explain how feedback helps coordinate heart and lung activity to support cellular respiration.

Learning Objectives

• Identify the main idea of how the circulatory system transports materials.
• Describe key roles of blood flow in delivering oxygen and nutrients and removing wastes.

Learning Objectives

• Identify the main idea of a science passage about thermoregulation.
• Use key vocabulary related to maintaining body temperature.
• Explain how a body temperature set point supports feedback control.

Learning Objectives

• Summarize the main idea of adaptive radiation in your own words.
• Identify and use key terms related to ecological niches and speciation.

Learning Objectives

• Identify the main idea about how multiple evidence types support evolutionary inference.
• Describe how fossils, anatomy, and molecular data contribute to explanations of descent with modification.

Learning Objectives

• Define evolution in terms of changes to heritable traits over generations.
• Identify key vocabulary related to evolution: allele, population, selection, drift, mutation, gene flow.
• Explain, using evidence from a text, how allele frequencies can change over time.

Learning Objectives

• Explain how fossil records preserve past life through different types of evidence.
• Identify how evidence from fossils supports claims about the timing of change in Earth’s history.
• Describe at least one factor that can limit what the fossil record shows.

Learning Objectives

• Identify the three core claims of cell theory from a text
• Use evidence from a passage to explain why cells are the basic unit of structure and function
• Explain how cell division supports the idea that new cells come from existing cells

Learning Objectives

• Identify major parts of a phylogenetic tree.
• Interpret what branching patterns suggest about common ancestry.
• Use vocabulary such as rooted, unrooted, ancestor, descendants, and clade to explain tree features.