Grade 9 Worksheets

Learning Objectives

• Define Newton's Third Law and identify action-reaction pairs.
• Recognize examples of interaction pairs in everyday scenarios.
• Explain why these forces act on different objects and do not cancel each other.

Learning Objectives

• Explain the key molecular signaling pathways involved in gene expression and protein activity regulation.
• Describe canonical mechanisms such as signal transduction cascades, receptor-ligand binding, and hormonal signaling.
• Analyze how molecular perturbations like mutations or drug inhibition affect cellular functions and systemic physiology.+ Show more

Learning Objectives

• Explain the key mechanisms of molecular signaling pathways and their roles in gene expression and protein activity.
• Describe canonical regulatory networks such as transcriptional regulation and signal transduction cascades.
• Analyze how perturbations like mutations affect molecular regulation and cellular function.+ Show more

Learning Objectives

• Identify key components of cell signaling pathways
• Explain the process of receptor-ligand binding
• Describe how gene expression is regulated through molecular mechanisms+ Show more

Learning Objectives

• Explain how molecular signaling pathways regulate gene expression and protein activity.
• Describe how receptor-ligand binding and signal transduction cascades connect to changes in cell behavior.
• Interpret how mutations or inhibitors can disrupt signaling and produce systemic physiological effects.

Learning Objectives

• Identify components of molecular signaling pathways
• Explain how signals are transmitted within cells
• Describe examples of signal transduction mechanisms+ Show more

Learning Objectives

• Explain how scale affects perceived size and distance in the solar system
• Describe how brightness and apparent motion depend on distance and viewing perspective
• Use orbital period and relative distance to make qualitative predictions about planetary motion

Learning Objectives

• Explain how molecular signaling pathways regulate gene expression and protein activity.
• Describe how receptor-ligand interactions and signal transduction cascades control cellular responses.
• Use examples to predict how disruptions (mutations or inhibitors) can change cellular and physiological outcomes.

Learning Objectives

• Understand the key mechanisms of molecular signaling pathways that regulate gene expression and protein activity.
• Recognize how molecular perturbations affect cellular function and systemic physiology.
• Interpret examples like insulin signaling and receptor tyrosine kinase pathways in biological contexts.+ Show more

Learning Objectives

• Understand the mechanisms of gene expression regulation and signal transduction pathways.
• Identify key molecular components involved in intercellular communication.
• Analyze how mutations and pharmacological inhibitors affect cellular signaling and systemic functions.+ Show more

Learning Objectives

• Explain how transcription factors regulate gene expression and protein production
• Describe how ligand-receptor binding initiates signal transduction pathways
• Analyze how insulin signaling promotes cellular glucose uptake+ Show more

Learning Objectives

• Explain different molecular signaling pathways involved in gene expression and protein activity regulation.
• Identify key mechanisms such as signal transduction, receptor-ligand interactions, and hormonal signaling.
• Describe examples like insulin-mediated glucose uptake and receptor tyrosine kinase pathways.+ Show more

Learning Objectives

• Describe the formation processes of the solar system from a protoplanetary disk.
• Interpret evidence from meteorite composition and isotopic dating to understand planetary formation.
• Explain the distribution of volatiles and planetary differentiation in outer and inner planets.+ Show more

Learning Objectives

• Describe the main stages of stellar evolution from star formation to terminal outcomes.
• Explain the role of Hertzsprung-Russell diagrams and spectral classification in understanding stars.
• Identify differences in stellar lifecycles based on mass and other properties.+ Show more

Learning Objectives

• Explain how greenhouse gases affect Earth’s energy flow by absorbing and re-emitting infrared radiation.
• Describe how energy balance depends on absorption, re-emission, and the altitude where radiation escapes to space.
• Use greenhouse-effect concepts to predict how changes in greenhouse gas concentrations can change surface temperature.

Learning Objectives

• Identify where an author presents an opposing view (counterclaim) in an informational text.
• Explain how a writer responds to counterclaims through rebuttals or hedged language.
• Evaluate whether the rebuttal addresses the counterclaim directly or shifts to a different issue.

Learning Objectives

• Explain how matter cycles through ecosystems using examples of carbon, nitrogen, and phosphorus.
• Describe how respiration, decomposition, and nutrient uptake connect organisms to air, water, and soil.
• Compare the movement of matter with the movement of energy in trophic transfers.

Learning Objectives

• Identify how writers use textual evidence to support an interpretation or claim.
• Explain the “evidence + explanation” link by writing clear reasoning based on specific details.
• Evaluate whether a claim is grounded in evidence rather than broad assertion.+ Show more

Learning Objectives

• Identify how evidence (specific textual details) supports an analysis claim
• Explain how commentary connects evidence to interpretation in an academic tone
• Compare interpretations using text-based support rather than broad assertions+ 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

• Differentiate physical and chemical properties and changes based on whether new substances form
• Use evidence such as color change, gas production, temperature change, and product formation to classify a change as physical or chemical
• Connect observed behaviors to particle-level explanations using the idea of bonding and identity of matter

Learning Objectives

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

Learning Objectives

• Differentiate physical changes from chemical changes by using evidence from observations.
• Identify physical properties and chemical properties and connect them to real-world examples.
• Explain how atoms and bonds relate to chemical change, while state/form changes relate to physical change.

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

• Differentiate physical properties and chemical properties of matter using examples
• Distinguish physical changes from chemical changes based on evidence
• Interpret observations (color, temperature, texture, gas/product formation) to classify changes

Learning Objectives

• Define physical and chemical properties of matter.
• Identify examples of physical changes.
• Identify examples of chemical changes.+ Show more

Learning Objectives

• Identify relevant evidence within a text.
• Explain how evidence supports an interpretation or claim.
• Develop analytical writing that incorporates textual evidence.+ Show more

Learning Objectives

• Identify examples of physical changes in matter.
• Distinguish between physical and chemical properties.
• Understand the difference between physical and chemical changes.

Learning Objectives

• Use accountable talk moves (ask questions, cite evidence, clarify meanings) during academic discussions.
• Respond to others by building on ideas rather than repeating them.
• Connect multiple perspectives to a shared purpose during a debate-like exchange.+ Show more

Learning Objectives

• Identify where alternative or opposing views (counterclaims) appear in an informational text.
• Evaluate how an author responds to a counterclaim, including whether the response directly rebuts or shifts the topic.
• Analyze how hedging language and acknowledgments of limitations affect the credibility of an argument.

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

• Explain how matter (carbon, nitrogen, phosphorus) moves through ecosystems using cycles.
• Describe how decomposition and nutrient uptake return elements to the physical environment.
• Differentiate between the flow of energy and the cycling of matter in trophic transfers.

Learning Objectives

• Understand the concept of gravitational and electrostatic forces.
• Learn the inverse-square law and its impact on force magnitude.
• Apply mathematical formulas to calculate forces between objects.+ Show more

Learning Objectives

• Explain Newton’s Third Law using the idea of action–reaction force pairs
• Identify the two interacting objects and determine force directions in third-law situations
• Distinguish why action–reaction forces do not cancel on a single body+ 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

• 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

• Understand the components of water budgets and how surface and subsurface water flows are quantified.
• Relate precipitation, evapotranspiration, human withdrawals, and streamflow variability within hydrologic systems.
• Explain the impacts of altered hydrologic fluxes on geomorphic processes and sediment yield.+ Show more

Learning Objectives

• Explain surface and subsurface water flow processes using water-budget frameworks.
• Interpret discharge hydrographs and groundwater level records for streamflow analysis.
• Relate precipitation, evapotranspiration, and human withdrawals to water resource variability.+ Show more

Learning Objectives

• Identify common observable evidence that a chemical reaction has produced new substances.
• Explain how reaction evidence relates to rearrangement of atoms and changes in bonding.
• Differentiate chemical changes from physical changes using evidence such as color, temperature, gas, precipitate, and odor.

Learning Objectives

• Explain how accretion builds planetesimals within a rotating disk
• Describe how differentiation separates materials within growing planetary bodies
• Interpret meteorite composition as evidence of early solar system conditions+ Show more

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

• 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

• 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

• Describe the stages of stellar evolution from star formation to end states.
• Interpret Hertzsprung-Russell diagrams and spectral classifications.
• Explain nucleosynthesis processes in stars and their contribution to element formation.+ Show more

Learning Objectives

• Explain Newton’s Third Law using action–reaction pairs between two interacting objects.
• Distinguish between forces that act on different objects and why they do not cancel on a single object.
• Apply third-law reasoning to real-world examples such as rockets, walking, and pushing against walls.

Learning Objectives

• Distinguish physical properties and chemical properties of matter and explain what each suggests about possible changes
• Differentiate physical changes from chemical changes using evidence such as product formation, energy change, and observable indicators
• Apply observations (color, texture, temperature, gas/precipitate formation) to justify whether a change is physical or chemical+ Show more