Grade 7 Science Worksheets

Learning Objectives

• Explain how friction opposes relative motion between surfaces and affects net force.
• Predict whether an object speeds up, slows down, or moves at (nearly) constant velocity based on the relationship between applied force and friction.
• Describe how surface texture (smooth vs. rough) changes the size of friction and influences motion.

Learning Objectives

• Understand the importance of building and electrical codes in ensuring safety.
• Identify key safety measures and standards used in construction and electrical work.
• Recognize exemplars of safety factors, load ratings, and grounding requirements.+ Show more

Learning Objectives

• Understand the concept of control variables in experiments.
• Identify control methods used to reduce bias in scientific studies.
• Explain why having control and comparison conditions is essential for credible results.+ Show more

Learning Objectives

• Identify the main idea about how gas pressure changes when force is applied.
• Describe key details linking gas pressure to confined volume.
• Explain the idea of pressure as gas particles collide with surfaces.

Learning Objectives

• Describe how competition, predation, mutualism, and parasitism affect ecological niches
• Explain how niche partitioning reduces competition and supports species coexistence
• Evaluate how keystone species and altered interaction networks can change community stability

Learning Objectives

• Explain how gravity and water-driven forces move Earth's surface material during mass wasting and coastal erosion.
• Describe how saturation from prolonged rain can destabilize slopes and trigger landslides.
• Compare ways waves and storm surge reshape coastlines by removing sand and changing shoreline shape.

Learning Objectives

• Explain how limited resources affect survival and reproduction in ecosystems.
• Describe how changes in environmental conditions can lead to population increases or decreases.
• Use the terms limiting factor and carrying capacity to interpret population changes.

Learning Objectives

• Identify major organelles (nucleus, mitochondria, chloroplasts, and cell membrane) and describe their primary functions
• Explain how organelles’ specialized structures support survival and overall cell performance
• Connect cellular energy capture (producers vs. consumers) to tissue and organ function in multicellular organisms+ Show more

Learning Objectives

• Define kinetic energy as energy of motion and potential energy as stored energy due to position or height.
• Identify the main idea of a science passage about energy in a swinging motion.
• Use key vocabulary words (kinetic energy, motion) to explain what changes as an object swings.

Learning Objectives

• Identify key abiotic drivers (temperature, light, soil composition, moisture, and pH) and describe how they influence where organisms live.
• Explain how gradients create environmental templates that affect community structure and species distribution.
• Use organism tolerance ranges to predict which habitats or microhabitats may support different species.

Learning Objectives

• Explain how rising air cooling leads to cloud formation through condensation and/or freezing
• Describe how droplet and ice-crystal growth leads to precipitation types
• Connect energy transfers during phase changes to weather patterns

Learning Objectives

• Understand and explain the concept of conduction as a mode of energy transfer
• Identify different mechanisms of energy transfer: conduction, convection, and radiation
• Analyze everyday examples of energy transfer methods+ Show more

Learning Objectives

• Explain how waves transfer energy without permanently moving matter.
• Differentiate transverse and longitudinal waves using motion and patterns.
• Connect amplitude and wavelength to energy and pattern spacing.

Learning Objectives

• Understand measures of central tendency: mean, median, mode
• Interpret variability through range and interquartile range
• Compare data sets visually using graphs like histograms and box plots+ Show more

Learning Objectives

• Define the key terms related to beams, such as span, support conditions, and load types.
• Identify different types of loads and support conditions in beams.
• Describe how various loads affect beam performance including bending, shear, and deflection.+ Show more

Learning Objectives

• Explain how natural selection works using the ideas of heritable variation and differential survival and reproduction.
• Identify examples of how environmental pressures can change allele or trait frequencies over generations.
• Distinguish natural selection from changes caused by an organism’s lifetime behavior or “trying to adapt.”+ Show more

Learning Objectives

• Explain how diffusion and osmosis are passive transport processes driven by concentration differences
• Describe how semipermeable membranes affect the movement of water during osmosis
• Predict how factors like temperature, surface area, and concentration gradient can change transport rate

Learning Objectives

• Understand how gravitational attraction influences orbital motion within the solar system and galaxies.
• Describe the mathematical relationships that quantify orbital velocity and centripetal effects for planets and moons.
• Identify observational evidence such as orbital trajectories, Keplerian patterns, and perturbations that support the understanding of orbital motion.

Learning Objectives

• Describe how physical properties of matter (including state, color, texture, and density) can be observed or measured.
• Explain how chemical properties describe how substances behave during chemical reactions.
• Use properties to classify substances and justify grouping with evidence from observations or data.

Learning Objectives

• Identify common physical properties of matter and explain how they can be observed or measured
• Use physical property clues to distinguish between substances and to reason about separating mixtures
• Connect changes in behavior (heat response and dissolving) to specific physical properties

Learning Objectives

• Describe production pathways from natural resources to common synthetic materials, including feedstocks, polymerization, and refining steps.
• Identify examples of synthetic materials such as polyethylene, PET, and nylon, and understand their manufacturing processes.
• Analyze trade-offs related to durability, recyclability, and environmental impacts of different synthetic materials.+ Show more

Learning Objectives

• Define trophic efficiency and describe how energy transfer changes between trophic levels
• Explain why energy pyramids show fewer organisms and less energy at higher levels
• Use a trophic efficiency idea to interpret ecosystem energy flow and predator-prey patterns

Learning Objectives

• Explain how empirical investigations produce evidence to support scientific claims
• Identify how uncertainty and alternative interpretations are handled in scientific reasoning
• Describe how new data can refine, adjust, or replace scientific models over time

Learning Objectives

• Identify major organelles in eukaryotic cells and describe their functions in cell processes such as transport and synthesis.
• Explain how cell compartments (membranes) help maintain specialized conditions for different activities.
• Compare structural features of plant and animal cells and relate those features to their functions.

Learning Objectives

• Identify the basic subatomic particles in an atom: protons, neutrons, and electrons.
• Understand the composition of different atoms based on atomic number and mass number.
• Relate isotopic variation to differences in neutron numbers.+ Show more

Learning Objectives

• Explain how predator and prey populations influence each other.
• Identify cause-and-effect relationships in ecological systems.
• Analyze cycles in predator-prey dynamics.+ Show more

Learning Objectives

• Identify key components of a building's walls and their thermal functions.
• Understand how insulation, barriers, and ventilation affect thermal performance.
• Assess how interfaces, thermal bridging, and air infiltration influence energy efficiency.+ Show more

Learning Objectives

• Understand the three main types of rocks: igneous, sedimentary, and metamorphic.
• Identify key features: mineral content, texture, and structure that distinguish igneous rocks.
• Learn how rocks are formed and their significance in Earth's history.

Learning Objectives

• Explain how cells communicate using chemical signals and electrical signals
• Describe how receptor proteins trigger intracellular pathways that change cell activity
• Compare direct cell-to-cell connections (gap junctions and plasmodesmata) with signal reception through receptors+ Show more

Learning Objectives

• Understand how molecules derived from food are transported within organisms.
• Identify systems involved in internal transport and waste removal.
• Explain the importance of continuous movement of matter for organism health.+ Show more

Learning Objectives

• Understand the concept of mechanical advantage in integrated systems.
• Analyze various design criteria including material choice, safety, and efficiency.
• Evaluate how regional environmental factors influence design decisions.

Learning Objectives

• Explain how data tables use consistent units and meaningful labels to organize measurements.
• Use the direction and shape of a graph to interpret trends and relationships.
• Compare groups by reading graphs accurately, including axis labels and scale.

Learning Objectives

• Understand the process of evaporation and how it leads to crystallization.
• Identify the factors that influence crystal growth and purity.
• Describe real-world examples of evaporation crystallization, such as salt and sugar production.+ Show more

Learning Objectives

• Understand the reasons why animals migrate seasonally and annually.
• Identify different migration drivers such as food availability and breeding needs.
• Analyze how migration patterns influence ecosystems and biodiversity.

Learning Objectives

• Explain how a scientific model represents a real system using simplified relationships.
• Use model relationships to make and evaluate predictions about natural phenomena.
• Identify assumptions and limitations of models when evidence conflicts with predictions.

Learning Objectives

• Define physical properties and distinguish them from physical changes.
• Use measurements such as mass, volume, and density to identify and compare materials.
• Explain how melting and boiling points, conductivity, and optical clarity support material classification.

Learning Objectives

• Identify key concepts of indigenous ecological practices
• Recognize the importance of oral histories in ecological understanding
• Understand how place-based knowledge influences land stewardship+ Show more

Learning Objectives

• Explain how variation, heritability, and selective pressures can cause adaptive traits to become more common in a population.
• Use examples (pesticide resistance and camouflage) to describe differential survival and reproduction across generations.
• Predict how environmental change can shift which traits are favored and how that affects populations and ecosystems.

Learning Objectives

• Explain the concept of heat capacity and specific heat
• Identify factors that influence heat capacity in everyday objects
• Apply the idea of heat capacity to real-world heating scenarios

Learning Objectives

• Explain what air masses are and how their temperature and moisture affect weather.
• Describe what fronts are and how they form when air masses meet.
• Compare the typical weather changes caused by cold fronts and warm fronts.+ Show more

Learning Objectives

• Use consistent metrics to compare two or more engineering design solutions using models or prototypes
• Identify and quantify trade-offs among performance, cost, durability, and manufacturability
• Justify a ranking of design options using evidence and clearly state limitations

Learning Objectives

• Explain how detritivores, fungi, and bacteria break down organic matter during decomposition.
• Describe how carbon and nitrogen are transformed and recycled through decomposition.
• Identify abiotic factors that affect decomposition rates and soil fertility.+ Show more

Learning Objectives

• Explain how heating and cooling affect the spacing and motion of particles in solids, liquids, and gases.
• Describe how thermal expansion leads to changes in length, volume, and pressure in real-world situations.
• Use the particle model to predict contraction and expansion when temperature changes.

Learning Objectives

• Identify treatment variables, control variables, and dependent outcomes in a scientific investigation.
• Explain how control groups, replication, and randomization reduce confounding influences.
• Describe how blocking and documentation help manage known sources of variation and methodological constraints.

Learning Objectives

• Use test data to identify which design parameters limit performance.
• Apply iterative refinement to improve a design while staying within constraints.
• Justify design changes using quantitative comparisons and evidence.

Learning Objectives

• Explain how the law of superposition and cross-cutting relationships help determine the relative order of geologic events.
• Identify which rock layers or features are older or younger based on observable evidence.
• Use relative dating reasoning to construct a simple geologic history when numerical ages are not available.

Learning Objectives

• Distinguish quantitative observations from qualitative observations in everyday science situations.
• Choose appropriate metric units and tools for measuring length, mass, and volume.
• Develop a simple scientific inquiry plan that includes a question, hypothesis, measurements, and error awareness.

Learning Objectives

• Understand the concept of conduction as a heat transfer process
• Identify examples of conduction in everyday objects
• Describe how heat moves from warmer to cooler regions through conduction