Grade 7 Worksheets

Learning Objectives

• Identify hazards and categorize risks in science activities
• Interpret safety data sheet information for safer choices
• Select engineering controls that reduce exposure to hazards+ Show more

Learning Objectives

• Analyze historical and instrumental data to identify patterns of natural hazards such as earthquakes, volcanic eruptions, hurricanes, floods, and tsunamis.
• Interpret hazard maps, recurrence intervals, and probabilistic forecasts to assess risks and inform mitigation strategies.
• Understand the cascading impacts of natural hazards on infrastructure, ecosystems, and settlements, and differentiate between short-term event dynamics and long-term trends.

Learning Objectives

• Explain how atomic number relates to the number of protons and electrons in common cases.
• Compare particle, ball-and-stick, and lattice representations of atoms in molecules and extended structures.
• Use chemical formula notation to describe how bonding patterns affect properties such as melting point and conductivity.

Learning Objectives

• Understand different representations of atomic structures such as particle, ball-and-stick, and lattice models.
• Identify how atomic models illustrate molecular and extended structures like water molecules and salt crystals.
• Connect subatomic particle relationships to atomic number and chemical formulas.+ Show more

Learning Objectives

• Distinguish between genotype (genetic makeup) and phenotype (observable traits).
• Explain how dominant and recessive alleles affect the traits that are expressed.
• Use genotype–phenotype reasoning to interpret patterns in families or hypothetical crosses.

Learning Objectives

• Understand the process of photosynthesis and how plants convert sunlight into chemical energy.
• Identify the key components involved in photosynthesis such as light, carbon dioxide, water, and sugars.
• Recognize the importance of photosynthesis in supporting ecosystems and energy transfer among organisms.

Learning Objectives

• Understand the law of conservation of mass as a principle that total mass remains constant in a closed system during physical and chemical transformations.
• Apply mass accounting to analyze reactions and dissolution processes in closed systems.
• Recognize how balancing chemical formulas and sealed-system measurements serve as models for reconciling observed mass distributions with theoretical calculations.+ Show more

Learning Objectives

• Understand the law of conservation of mass as a principle in physical and chemical changes.
• Identify that mass remains constant in a closed system during transformations.
• Apply concepts of mass conservation to various laboratory scenarios.+ Show more

Learning Objectives

• Identify hazards in laboratory and field environments
• Understand safety data sheets and hazard classifications
• Recognize electrical, chemical, and biological risks+ Show more

Learning Objectives

• State the law of conservation of mass for a closed system during physical and chemical changes.
• Use mass accounting to relate reactant mass and product mass in sealed reactions and dissolution processes.
• Balance simple formulas or mass expectations to reconcile observed mass distributions with stoichiometric relationships.

Learning Objectives

• Explain the principle of the conservation of mass in closed systems during physical and chemical processes.
• Apply mass accounting techniques to reactions and dissolution processes to relate reactant and product masses.
• Balance simple chemical formulas and use sealed-system measurements to reconcile observed mass distributions with stoichiometric calculations.

Learning Objectives

• Understand the law of conservation of mass as a fundamental principle in physical and chemical changes.
• Apply mass accounting techniques to closed reactions and dissolution processes.
• Balance simple chemical formulas to relate reactant and product mass.+ Show more

Learning Objectives

• Differentiate between weather and climate using timescales
• Identify key weather variables (temperature, precipitation, humidity, wind)
• Explain how climate depends on long-term patterns and geography

Learning Objectives

• Explain how birth and death rates and migration affect population size and distribution
• Compare exponential and logistic growth patterns using carrying capacity and limiting factors
• Describe how resources, disease, and competition influence population dynamics and species interactions

Learning Objectives

• Understand the law of conservation of mass and its fundamental principles.
• Apply mass accounting to chemical and physical processes in closed systems.
• Recognize how balancing chemical equations relates to mass conservation.+ Show more

Learning Objectives

• Understand the law of conservation of mass as a fundamental principle in physical and chemical transformations.
• Apply mass accounting techniques to analyze closed reactions and dissolution processes.
• Balance simple chemical formulas and relate reactant and product mass relationships in sealed systems.

Learning Objectives

• Understand the factors that influence population size and distribution.
• Explain the concepts of exponential and logistic growth patterns.
• Analyze how predator-prey interactions affect population dynamics.+ Show more

Learning Objectives

• Identify main ideas about why populations change over time.
• Use key vocabulary: birth rate, death rate, immigration, emigration, carrying capacity, and limiting factors.
• Explain how birth and death and movement into and out of a habitat affect population size.

Learning Objectives

• Explain how births, deaths, immigration, and emigration change population size and distribution
• Describe carrying capacity and limiting factors and how they affect population growth
• Compare exponential and logistic growth patterns using real population examples+ Show more

Learning Objectives

• Describe different representations of atoms, including particle, ball-and-stick, and lattice models.
• Explain how atoms form molecules via covalent and ionic bonding.
• Connect subatomic particles, atomic number, and chemical formulas to the properties of materials.+ Show more

Learning Objectives

• Understand the stages of the water cycle
• Explain how water moves within the environment
• Identify the processes involved in water cycling such as evaporation, condensation, precipitation, and collection+ Show more

Learning Objectives

• Explain how atoms move through an ecosystem via processes like photosynthesis, feeding, respiration, and decomposition.
• Describe how decomposers return nutrients to soil and water and how this supports new plant growth.
• Distinguish matter cycling from energy flow in ecosystems, emphasizing that energy moves one direction from the Sun.

Learning Objectives

• Explain how matter (atoms of elements like carbon and nitrogen) cycles through ecosystems between living and nonliving components.
• Describe major pathways for matter cycling, including photosynthesis, respiration, feeding, decomposition, and transport in soil and water.
• Differentiate energy flow from matter cycling by recognizing that energy moves mainly one direction from the Sun.

Learning Objectives

• Explain the difference between genotype and phenotype in terms of genes and observable traits
• Describe how dominant and recessive alleles affect which phenotype an organism shows
• Use the genotype–phenotype relationship to predict traits and explain why relatives may look different

Learning Objectives

• Identify common hazards in laboratory and field activities and explain how they lead to risks
• Analyze risk by considering both likelihood and severity and choose appropriate mitigation controls
• Interpret safety information such as labels and safety data sheets to guide safe decisions+ Show more

Learning Objectives

• Distinguish figurative language from literal language and explain how it changes meaning.
• Identify how connotation influences tone and the reader’s interpretation.
• Analyze comparisons, imagery, and figurative phrases to explain emotions, themes, or conflicts.+ Show more

Learning Objectives

• Use stratigraphic order to reconstruct timelines from sedimentary layers
• Identify how index fossils correlate rock layers across regions
• Explain how transitional fossils support common ancestry+ Show more

Learning Objectives

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

Learning Objectives

• Identify how stratigraphic layers and index fossils help scientists interpret the fossil record over geologic time.
• Explain how transitional fossils provide evidence for anatomical change and lineage continuity.
• Compare evidence for macroevolutionary patterns such as radiation events and mass extinctions.

Learning Objectives

• Analyze patterns in the fossil record to understand evolutionary relationships.
• Identify key concepts such as stratigraphy, index fossils, and transitional forms.
• Interpret data from fossil assemblages and understand their significance in macroevolution.+ Show more

Learning Objectives

• Explain how fossil patterns in stratigraphic layers provide evidence for common ancestry and evolutionary change over geologic time.
• Use index fossils and correlations between sedimentary layers to infer relative ages and interpret changes in fossil assemblages.
• Analyze how transitional fossils and morphological trends support ideas about lineage continuity, radiations, and mass extinctions.

Learning Objectives

• Understand how fossil records reveal patterns of succession, diversity, and extinction events.
• Identify key fossil types such as index fossils and transitional forms like Archaeopteryx and Tiktaalik.
• Analyze stratigraphic sequences to infer evolutionary relationships and timing of macroevolutionary trends.+ Show more

Learning Objectives

• Understand the relationship between heat, mass, and temperature change using the equation Q = mcΔT.
• Calculate the amount of heat energy required to change the temperature of various substances.
• Explain factors affecting heat transfer such as area, temperature gradient, and time.+ Show more

Learning Objectives

• Understand the relationship between heat, mass, and temperature change using the formula Q = mcΔT.
• Recognize units such as joules and watts used to measure heat and power.
• Apply the specific heat capacity concept to estimate energy required for heating substances.+ Show more

Learning Objectives

• Understand the significance of fossil patterns in revealing evolutionary history.
• Identify key concepts such as stratigraphy, index fossils, transitional forms, and macroevolutionary trends.
• Analyze fossil evidence to infer common ancestry and extinction events.+ Show more

Learning Objectives

• Understand the relationship between heat, mass, and temperature change using the equation Q = mcΔT.
• Identify units such as joules and watts used for measuring heat energy.
• Apply heat calculation formulas to practical problems involving different substances.+ Show more

Learning Objectives

• Analyze patterns in the fossil record, including diversity, extinction events, and morphological change over geologic time
• Explain how stratigraphy and index fossils support correlation and inferences about ancestry
• Describe how transitional fossils provide evidence for evolutionary continuity

Learning Objectives

• Use the relationship Q = mcΔT to estimate the thermal energy needed to change a substance’s temperature.
• Explain how specific heat capacity links material identity to temperature change for a given mass and added heat.
• Describe how heat-transfer rate depends on area, temperature gradient, and time.

Learning Objectives

• Explain how energy moves through ecosystems from producers to consumers to decomposers.
• Describe why each energy transfer to the next trophic level reduces the amount of usable energy.
• Use trophic-level ideas to predict how changes in one organism group can affect other groups.

Learning Objectives

• Explain why models can give useful predictions while still having limits.
• Identify assumptions and simplifications that affect what a model can explain.
• Describe how discrepancies can guide revisions to a model’s parameters or structure.

Learning Objectives

• Explain how energy enters an ecosystem and moves through trophic levels (producers to consumers).
• Describe why energy decreases at each transfer between trophic levels.
• Compare the roles of producers, consumers, and decomposers in energy flow.+ Show more

Learning Objectives

• Explain how producers use light, carbon dioxide, and water to make sugars during photosynthesis
• Describe how photosynthesis stores energy in chemical bonds in biomass
• Connect photosynthesis to energy flow and matter cycling through food chains

Learning Objectives

• Define what a scientific model is
• Identify the purpose of scientific models
• Explain the limitations and assumptions within models+ Show more

Learning Objectives

• Interpret historical and instrumental hazard data to identify patterns of frequency, magnitude, and geographic distribution.
• Use hazard maps and recurrence intervals to reason about risk and make evidence-based land-use choices.
• Explain how cascading impacts from natural hazards affect infrastructure, ecosystems, and communities, especially in coastal or floodplain areas.

Learning Objectives

• Identify the assumptions made in scientific models.
• Recognize the boundaries and limitations of various models.
• Understand how discrepancies between observations and models signal the need for revision.+ Show more

Learning Objectives

• Understand the relationship between heat, mass, and temperature change using the formula Q = mcΔT.
• Identify units such as joules and watts used in heat calculations.
• Apply basic heat calculations to estimate energy transfer in common substances.+ Show more

Learning Objectives

• Identify a speaker’s main claim and supporting details in a text or speech
• Evaluate whether the evidence and reasoning logically support (or fail to support) the claim
• Respond to claims by addressing misunderstandings and using respectful, evidence-based language

Learning Objectives

• Explain the transfer of energy through trophic levels in ecosystems.
• Identify the roles of producers, consumers, and decomposers in energy pyramids.
• Describe how photosynthesis and cellular respiration are mechanisms for energy capture and release.+ Show more