Grade 9 Worksheets

Learning Objectives

• Describe the processes involved in the formation of the solar system from a protoplanetary disk.
• Identify evidence such as meteorite composition and radiometric dating that support theories of planetary formation.
• Explain the differences between inner rocky planets and outer gas giants based on planetary differentiation and volatile content.+ Show more

Learning Objectives

• Explain how honesty, confidentiality, and empathy help build trust in relationships
• Identify behaviors that support respectful communication, active listening, and healthy boundaries
• Describe how to repair trust after misunderstandings or mistakes

Learning Objectives

• Identify key components involved in molecular signaling pathways.
• Understand how signal transduction cascades influence gene expression.
• Explain mechanisms of hormonal and receptor-ligand signaling.+ Show more

Learning Objectives

• Explain how honesty, confidentiality, and empathy build trust in relationships.
• Demonstrate active listening and respectful communication that supports emotional safety.
• Describe how reliability and boundary-respecting choices strengthen personal, social, and community trust.

Learning Objectives

• Identify observable evidence that indicates a chemical reaction has formed new substances
• Explain how changes in atoms and bonding patterns connect to reaction evidence such as gas, precipitate, color, temperature, and odor
• Distinguish chemical changes from physical changes using evidence-based reasoning

Learning Objectives

• Understand the mathematical form of gravitational and electrostatic force equations.
• Apply inverse-square law formulas to calculate magnitudes of forces between objects.
• Analyze the directions of forces in vector form in various scenarios.+ Show more

Learning Objectives

• Understand the spectrum of electromagnetic radiation and its relationship with photon energy.
• Explain how different types of electromagnetic waves interact with matter, including phenomena like atomic emission and absorption.
• Apply Planck’s relation to compare energies and wavelengths across the electromagnetic spectrum.+ Show more

Learning Objectives

• Understand the main stages of stellar evolution and their characteristics.
• Identify different end states of stars such as white dwarfs, neutron stars, and black holes.
• Describe how nucleosynthesis contributes to elemental formation in stars.+ Show more

Learning Objectives

• Identify the main components of the solar system
• Describe the relative sizes and distances of planets from the Sun
• Understand the concept of scale in astronomical observations+ Show more

Learning Objectives

• Describe the mechanisms of molecular signaling pathways and how they regulate gene expression and protein activity.
• Explain how intercellular communication affects cellular functions and systemic physiological outcomes.
• Analyze the effects of mutations and pharmacological inhibition on molecular pathways and organism health.+ Show more

Learning Objectives

• Explain how scale and distance affect how the solar system appears from Earth
• Use basic measurement ideas (relative scale, brightness, and apparent motion) to infer orbital properties
• Distinguish between physical distance/size and observational perspective when interpreting sky observations

Learning Objectives

• Explain how the protoplanetary disk contributed to planetary formation.
• Identify key evidence supporting planetary origins, such as meteorites and isotopic dating.
• Describe differences between inner rocky planets and outer gas giants based on formation processes.

Learning Objectives

• Explain how scale models help connect observable features of the night sky to real distances and sizes in the solar system.
• Describe how perspective affects apparent motion and brightness of planets as Earth orbits the Sun.
• Use relative reasoning about orbital periods and repeating patterns to interpret sky observations.

Learning Objectives

• Analyze how authors support their claims with evidence
• Evaluate the strength and relevance of evidence used in texts
• Identify different author perspectives through word choice and framing+ Show more

Learning Objectives

• Understand the stages of star formation and evolution
• Identify key features of stellar life cycles from gas clouds to final remnants
• Interpret Hertzsprung-Russell diagrams and spectral classifications+ Show more

Learning Objectives

• Explain Newton’s Third Law using the idea of action–reaction pairs that act on different objects
• Identify forces in a scenario and determine the direction and relative size of the matching third-law force
• Predict how force pairs affect the motion of each object involved+ Show more

Learning Objectives

• Identify a writer’s claim and evaluate whether evidence supports that claim.
• Analyze reasoning by checking assumptions, cause-effect links, comparisons, and generalizations.
• Explain how an author’s perspective is revealed through word choice, emphasis, omissions, and treatment of opposing views.+ Show more

Learning Objectives

• Identify a writer’s claim and evaluate how well the evidence supports that claim.
• Analyze reasoning by looking for assumptions, cause-and-effect links, comparisons, and generalizations.
• Evaluate an author’s perspective by examining word choice, emphasis, and omissions.+ Show more

Learning Objectives

• Identify key moves of academic conversation (build on ideas, respond to peers, use evidence).
• Use discussion roles and question types to clarify meaning and deepen understanding.
• Evaluate statements about respectful, purpose-driven collaborative dialogue.

Learning Objectives

• Evaluate how an author supports claims using evidence, reasoning, and assumptions.
• Distinguish opinion from reasoned argument by analyzing word choice and treatment of counterclaims.
• Assess how perspective is revealed through framing, emphasis, and omissions.

Learning Objectives

• Identify parts of the electromagnetic spectrum and understand their relative frequencies.
• Explain how photon energy relates to wave frequency.
• Understand phenomena such as atomic emission and absorption lines.+ Show more

Learning Objectives

• Identify observable signs of chemical reactions, such as gas formation, precipitate production, color change, temperature change, and odor change.
• Understand how these signs relate to changes in atomic arrangements and bonding patterns.
• Recognize examples of oxidation and combustion reactions based on observable evidence.

Learning Objectives

• Understand the mathematical forms of gravitational and electrostatic force equations.
• Predict magnitudes and directions of forces between masses and charged objects using inverse-square laws.
• Apply vector concepts to analyze net forces in various scenarios.+ Show more

Learning Objectives

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

Learning Objectives

• Understand how ice cores, tree rings, marine sediments, and speleothems serve as proxies for past climate conditions.
• Interpret isotopic ratios and growth increments in paleoclimate data.
• Relate proxy indicators to historical climate patterns and events.+ Show more

Learning Objectives

• Understand how ice cores, tree rings, marine sediments, and speleothems serve as proxies for past climate conditions.
• Interpret proxy indicators such as isotopic ratios, growth increments, and microfossil assemblages to reconstruct climate history.
• Relate proxy records to temporal climate patterns, including glacial-interglacial cycles and abrupt climate events.+ Show more

Learning Objectives

• Explain how limiting factors affect population growth in an ecosystem
• Identify examples of biotic and abiotic limiting factors and describe their effects
• Use carrying capacity to predict how populations change over time

Learning Objectives

• Describe the main components of the water cycle
• Identify how surface and subsurface water flows are measured
• Explain the relationship between precipitation, evapotranspiration, and streamflow+ Show more

Learning Objectives

• Understand the different types of force interactions in physics.
• Identify examples of forces and their effects.
• Explain Newton's third law of motion.+ Show more

Learning Objectives

• Identify an author’s claim and explain what evidence is used to support it.
• Evaluate the strength of reasoning by checking assumptions, cause-effect links, and generalizations.
• Analyze perspective by examining word choice, emphasis, omissions, and how alternative viewpoints are treated.+ Show more

Learning Objectives

• Understand the inverse-square dependence of gravitational and electrostatic forces.
• Apply quantitative formulas to calculate magnitudes and directions of forces between masses and charges.
• Explain the approximations used for point masses and point charges in force calculations.+ Show more

Learning Objectives

• Understand and quantify surface and subsurface water flows using water-budget frameworks
• Relate precipitation, evapotranspiration, and human withdrawals to streamflow and aquifer health
• Analyze the impact of altered hydrologic fluxes on geomorphic processes+ Show more

Learning Objectives

• Explain how electromagnetic radiation can be described as both waves and photons.
• Relate photon energy to frequency using Planck’s relation and interpret how this affects interactions with matter.
• Interpret how absorption and emission produce spectral lines and identify what changes in a spectrum mean physically.+ Show more

Learning Objectives

• Understand the formation of the solar system from a rotating protoplanetary disk.
• Identify key evidence supporting planetary formation theories, such as meteorite composition and radiometric dating.
• Explain the differences between inner rocky planets and outer gas giants based on planetary differentiation and volatile content.+ Show more

Learning Objectives

• Understand the formation process of the solar system from a protoplanetary disk.
• Identify evidence supporting planetary formation theories, including meteorite composition and isotopic radiometric dating.
• Explain differences between inner rocky planets and outer gas giants based on planetary differentiation and volatile content.+ Show more

Learning Objectives

• Describe the formation processes of the solar system from a protoplanetary disk.
• Identify evidence supporting planetary formation theories, including meteorite composition and isotopic dating.
• Explain the differences between inner rocky planets and outer gas giants based on planetary differentiation and volatile content.+ Show more

Learning Objectives

• Understand the wave and photon descriptions of electromagnetic radiation.
• Relate frequency and wavelength to photon energy and interaction with matter.
• Explain phenomena such as atomic emission and absorption lines, signal transmission, and spectral attenuation.+ Show more

Learning Objectives

• Explain how stellar mass influences the main sequence lifetime and later evolution.
• Describe major evolutionary stages of stars, including red giant expansion and core helium fusion.
• Connect Hertzsprung-Russell diagram ideas and spectral classification to stellar properties.+ Show more

Learning Objectives

• Understand the processes involved in planetary formation from a protoplanetary disk.
• Identify key evidence supporting models of planetary origins, such as meteorite composition and isotopic dating.
• Explain the differences in composition and structure between inner rocky planets and outer gas giants.+ Show more

Learning Objectives

• Understand the formation of the solar system from a protoplanetary disk.
• Identify evidence supporting planetary formation theories.
• Describe the differences between inner rocky planets and outer gas giants.+ Show more

Learning Objectives

• Explain how angular momentum in a rotating protoplanetary disk can lead to planet formation.
• Describe how meteorite composition and isotopic radiometric dating provide evidence for solar system chronology.
• Connect volatile gradients and planetary differentiation to the rocky inner planets and gas-rich outer planets.

Learning Objectives

• Describe the formation process of the solar system from a protoplanetary disk.
• Identify key evidence supporting planetary formation theories such as meteorite composition and radiometric dating.
• Explain differences between inner rocky planets and outer gas giants based on gradients in volatile content.+ Show more

Learning Objectives

• Explain the wave and photon descriptions of electromagnetic radiation.
• Relate frequency to photon energy and interactions with matter.
• Identify characteristic phenomena such as atomic emission and absorption lines.+ Show more

Learning Objectives

• Explain how greenhouse gases trap heat in Earth's atmosphere.
• Describe the role of infrared radiation in Earth's energy balance.
• Analyze how variations in greenhouse gas concentrations affect global temperatures.

Learning Objectives

• Describe how stars form and progress through major evolutionary stages
• Interpret Hertzsprung-Russell diagrams using stellar properties
• Explain how stellar mass influences lifetimes and terminal outcomes+ Show more

Learning Objectives

• Explain how stellar mass affects the path of stellar evolution from formation through later stages.
• Describe how nuclear fusion processes change during a star’s main-sequence and post-main-sequence evolution.
• Interpret how Hertzsprung–Russell (H–R) diagrams, spectral classification, and supernova remnants provide evidence for evolution.

Learning Objectives

• Describe the processes involved in stellar formation and evolution.
• Identify the stages of stellar evolution from main sequence to terminal outcomes.
• Explain the use of Hertzsprung-Russell diagrams and spectral classification in understanding stars.+ Show more

Learning Objectives

• Understand the process of star formation from clouds of gas and dust.
• Identify characteristics of stars on the main sequence.
• Describe different stages of stellar evolution including red giant phase, white dwarf, neutron star, and black hole outcomes.+ Show more