Grade 7 Science Worksheets

Learning Objectives

• Understand how data is organized in tables with consistent units and labels.
• Interpret various data representations such as tables and graphs.
• Identify trends, clusters, and relationships within data sets.+ Show more

Learning Objectives

• Define acceleration and explain its meaning.
• Differentiate between constant and changing acceleration.
• Understand how force and mass affect acceleration.

Learning Objectives

• Identify biotic and abiotic factors in an ecosystem
• Explain cause-and-effect relationships between abiotic conditions and resource availability
• Describe how sunlight, soil, water, temperature, and topography influence living things

Learning Objectives

• Understand how to systematically evaluate different design solutions based on performance, cost, durability, and manufacturability.
• Learn to prioritize metrics and use models to predict and compare behaviors of prototypes.
• Analyze trade-offs among competing options using quantitative and qualitative metrics.+ Show more

Learning Objectives

• Identify observable evidence that a chemical change has occurred (color change, gas formation, precipitate formation, temperature/energy change, and odor change).
• Explain chemical change at the particle level by describing disrupted bonds and newly formed bonds rather than simple particle rearrangement.
• Use evidence to distinguish chemical changes from physical changes in everyday examples.

Learning Objectives

• Understand the role of various connection types in structural load paths.
• Identify the functions of bolted, welded, and bearing connections.
• Explain how shear, bearing, and slip effects influence connection performance.+ Show more

Learning Objectives

• Understand how to construct evidence-based arguments using claims, evidence, and reasoning.
• Analyze graphical representations and quantitative data to support or refute hypotheses.
• Evaluate alternative models and recognize the limits of inference in argumentation.+ Show more

Learning Objectives

• Understand the concept of a food web and its ecological significance.
• Identify the different types of organisms involved in a food web.
• Analyze how interconnected relationships affect ecosystem stability.+ Show more

Learning Objectives

• Interpret position-time graphs by using slope to determine velocity and curvature to identify changing velocity
• Interpret velocity-time graphs by using slope to determine acceleration
• Use data tables with motion graphs to support conclusions about constant versus changing motion+ Show more

Learning Objectives

• Explain recoil and thrust using Newton’s third law (action–reaction force pairs).
• Identify the correct force pair and the opposite directions of forces in a two-object interaction.
• Relate equal-and-opposite forces to different accelerations using mass.

Learning Objectives

• Explain how net force depends on both magnitude and direction of forces in one dimension
• Use sign conventions to add forces along a line and determine the direction of motion
• Interpret equilibrium as zero net force and predict what happens to an object

Learning Objectives

• Explain how potential energy depends on an object’s position or arrangement and on interactions at a distance.
• Describe gravitational, elastic, and magnetic potential energy using models (mass on a shelf, compressed spring, separated magnets).
• Predict how changing spatial arrangement affects stored potential energy and later motion or work.

Learning Objectives

• Explain how invasive species spread beyond their native range and why they can outcompete native organisms.
• Describe ecological consequences of invasive species, including impacts on food webs, energy flow, and nutrient cycles.
• Evaluate how long-term changes in ecosystems can result from invasive species becoming established.

Learning Objectives

• Understand different types of graphs used in scientific data presentation
• Recognize when to use bar charts, histograms, line graphs, and scatter plots
• Interpret elements of graphs such as axes, trend lines, and error bars+ Show more

Learning Objectives

• Describe the nature of gravitational, electric, and magnetic interactions as long-range forces that act without contact.
• Explain how gravity is universally attractive and how electric and magnetic forces can be attractive or repulsive.
• Relate gravitational attraction to mass and distance in qualitative terms.+ Show more

Learning Objectives

• Identify and distinguish between mixtures and pure substances.
• Describe the differences between heterogeneous and homogeneous mixtures.
• Explain physical properties used to separate mixtures, such as filtration, evaporation, and distillation.+ Show more

Learning Objectives

• Understand how to calculate average speed using distance and time data.
• Distinguish between average speed and instantaneous speed through examples.
• Convert speed units between meters per second and kilometers per hour.+ Show more

Learning Objectives

• Explain how fitness relates to survival and reproduction in a specific environment
• Describe how natural selection can favor different traits when selection pressures change
• Connect heritable variation to how populations can change over time

Learning Objectives

• Understand the process of technological innovation and its historical development.
• Identify factors that facilitate invention and innovation across different technological lineages.
• Analyze the causes and diffusion of inventions and innovations over time.+ Show more

Learning Objectives

• Explain how population growth and increased per-capita consumption change demand for water, energy, land, and raw materials
• Describe how these demands can affect ecosystems, biodiversity, and freshwater availability
• Use quantitative relationships (population, urbanization, waste, and resource use) to predict environmental impacts

Learning Objectives

• Explain how abiotic and biotic disturbances can change population sizes and community composition
• Compare resistance, resilience, and succession as mechanisms that shape ecosystem recovery
• Interpret longitudinal observations to connect population trends to specific disturbance causes

Learning Objectives

• Classify substances as elements, compounds, or mixtures based on composition and uniformity
• Distinguish pure substances from mixtures using fixed composition and consistent properties versus variable composition and properties
• Explain how identifying a material helps with everyday selection and safe use

Learning Objectives

• Explain what an air mass is and how its temperature and moisture affect weather
• Describe how fronts form when different air masses meet
• Compare cold fronts and warm fronts in terms of lifting, clouds, and precipitation

Learning Objectives

• Explain how density differences allow mixtures to be separated using decanting, flotation, and centrifugation.
• Describe how buoyant force, sedimentation rate, and centrifugal acceleration relate to particle size and density contrast.
• Choose an appropriate density-separation method by comparing what each method uses (gravity, buoyancy, or acceleration).

Learning Objectives

• Distinguish between homogeneous and heterogeneous mixtures using observable evidence
• Select appropriate separation methods (filtration, distillation, chromatography, magnetic separation) based on property differences
• Explain how solubility, particle size, and boiling point differences lead to observable separated fractions

Learning Objectives

• Understand the concept of trophic efficiency and its significance in ecosystems.
• Explain how energy is transferred between trophic levels and why energy diminishes at higher levels.
• Interpret energy pyramids and relate them to biomass and energy flow in ecological communities.+ Show more

Learning Objectives

• Understand key technologies used in space exploration such as telescopes, satellites, and spacecraft propulsion.
• Identify historical missions and their contributions to space science.
• Explain how robotic missions and space stations gather data about extraterrestrial environments.+ Show more

Learning Objectives

• Define static and kinetic friction and identify examples of each.
• Explain how surface texture and normal force affect friction.
• Describe how friction and drag influence motion in everyday situations.+ Show more

Learning Objectives

• Explain how natural selection works using the ideas of heritable variation and differential survival and reproduction
• Describe how natural selection changes allele frequencies over many generations
• Use real-world examples (such as antibiotic resistance) to illustrate natural selection+ Show more

Learning Objectives

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

Learning Objectives

• Distinguish ionic and covalent bonding using particle-level evidence (ions vs. electron sharing).
• Relate bonding type to macroscopic properties such as melting point, solubility, and electrical conductivity.
• Use empirical formula ideas to explain simple formation of binary ionic salts and molecular compounds.+ Show more

Learning Objectives

• Understand how to evaluate scientific models and compare predicted outcomes with evidence.
• Identify assumptions in models that may be oversimplified or incomplete.
• Learn how computational simulations can reveal the impact of input changes on model outputs.+ Show more

Learning Objectives

• Define saturation and supersaturation in liquids.
• Identify examples of saturation in everyday life.
• Explain the process of phase change between dissolved and solid states.+ Show more

Learning Objectives

• Explain how predator and prey populations can change over time through feedback loops.
• Use cause-and-effect reasoning to predict what happens when predators increase or decrease.
• Describe how predator-prey dynamics can influence other organisms in a community.

Learning Objectives

• Understand how energy is transferred through food webs and the limitations of energy transfer between trophic levels.
• Explain why food chains typically have only a few trophic levels due to energy loss.
• Describe the role of biomass and energy transfer efficiency in predator-prey relationships.+ Show more

Learning Objectives

• Understand how position-time graphs represent motion patterns.
• Interpret slope and curvature in position-time and velocity-time graphs.
• Relate data tables to graphical motion representations.+ Show more

Learning Objectives

• Explain how particle motion changes material size with temperature
• Describe how thermal expansion affects structural design and safety
• Explain melting and freezing as temperature-dependent phase changes+ Show more

Learning Objectives

• Compare how timber, structural steel, and reinforced concrete behave under compression, tension, and bending.
• Identify material properties such as strength, stiffness, and density that affect design choices.
• Explain how environmental factors like frost and snow influence long-term maintenance needs.

Learning Objectives

• Understand the process by which producers convert light energy into chemical energy during photosynthesis.
• Identify the key components and reactants involved in photosynthesis.
• Explain how energy and matter flow through ecosystems via photosynthesis and food chains.+ Show more

Learning Objectives

• Use specific heat, mass, and temperature change to quantify energy transfer in Joules and kilojoules.
• Explain how thermal energy calculations connect to practical situations and energy budgets.
• Interpret basic claims about heating, melting, and energy units using quantitative reasoning.

Learning Objectives

• Explain how resource availability and competition influence population growth rates
• Interpret logistic growth curves and the concept of carrying capacity
• Relate birth, death, immigration, and emigration to changes in population size

Learning Objectives

• Define population dynamics and growth models
• Identify factors that limit population growth
• Differentiate between density-dependent and density-independent factors+ Show more

Learning Objectives

• Define kinetic energy and potential energy using everyday examples.
• Explain how height and motion relate to stored energy and moving energy.
• Describe energy transfer between objects in a system using qualitative reasoning.

Learning Objectives

• Explain how technologies can create benefits and costs through real-world trade-offs.
• Identify ethical considerations in technology, including fairness, privacy, and responsibility across a product’s life cycle.
• Describe how engineering choices can affect people and ecosystems over time.

Learning Objectives

• Understand the principle of conservation of mass in chemical reactions.
• Identify how atoms are conserved and rearranged during reactions.
• Explain the concept of closed systems and their importance in mass measurement.+ Show more

Learning Objectives

• Identify independent, dependent, and controlled (constant) variables in a science investigation.
• Select appropriate control groups and explain why they are necessary for valid comparisons.
• Describe how replication, randomization, and blocking reduce confounding influences.+ Show more

Learning Objectives

• Identify different landforms created by tectonic activity
• Understand how tectonic movements shape Earth's surface
• Learn about the processes of weathering, erosion, and deposition+ Show more

Learning Objectives

• Explain how gravitational force, weight, and inertia relate to motion near Earth
• Differentiate gravity from support forces (normal forces) and describe when they balance or do not balance
• Use Newton’s ideas of net force to predict how objects move when support forces change