Grade 7 Science Worksheets

Learning Objectives

• Define solutions, colloids, and suspensions
• Identify examples of each mixture type
• Describe the properties and differences of mixture categories+ Show more

Learning Objectives

• Identify abiotic factors and explain how they affect living organisms in an ecosystem.
• Describe cause-and-effect relationships between resource availability and community patterns.
• Classify examples as biotic or abiotic and use evidence from a passage to support answers.

Learning Objectives

• Explain how clouds form when air cools and water vapor condenses into tiny droplets or ice crystals
• Describe how temperature and moisture conditions affect the type of clouds and precipitation
• Connect phase changes and energy transfer to the water cycle and local weather patterns

Learning Objectives

• Explain how air cooling and water vapor turning into tiny droplets or ice crystals form clouds.
• Describe how temperature and moisture conditions affect whether clouds produce low clouds, tall storm clouds, or persistent precipitation.
• Connect phase changes and energy transfer to the water cycle and local weather patterns.

Learning Objectives

• Explain how weathering, transport, deposition, and lithification work together to form sedimentary rocks.
• Compare mechanical and chemical weathering and describe how each contributes to sediment production.
• Interpret how depositional environments influence bedding, fossils, and sedimentary structures.+ Show more

Learning Objectives

• Explain how energy availability decreases across trophic levels in a food web.
• Describe why only a fraction of ingested energy becomes biomass for the next consumer level.
• Interpret energy-flow ideas to predict patterns in food chain length and biomass.

Learning Objectives

• Understand the concept of density as mass per unit volume.
• Describe how particles are arranged in materials with different densities.
• Explain how temperature changes can affect the density of a substance.+ Show more

Learning Objectives

• Understand how various bridge truss designs are modeled and compared.
• Analyze trade-offs among performance, cost, durability, and manufacturability.
• Develop skills to evaluate design options using models and prototypes.+ Show more

Learning Objectives

• Understand what invasive species are and how they impact ecosystems
• Identify mechanisms by which invasive species spread and establish
• Examine ecological consequences of invasive species on native biodiversity+ Show more

Learning Objectives

• Define the criteria for scientific questions and explain why testability matters.
• Write hypotheses and describe how operational definitions and variables guide investigations.
• Use measurement precision, documentation, and reproducibility to support reliable conclusions.+ Show more

Learning Objectives

• Explain how invasive (non-native) species can disrupt ecosystems through competitive displacement, altered trophic relationships, and habitat structure changes.
• Describe pathways by which non-native species are introduced and factors that help them establish and spread.
• Analyze how invasive species can cause long-term ecological and economic consequences, including reduced native diversity, altered nutrient dynamics, and increased management costs.+ Show more

Learning Objectives

• Explain how density relates mass and volume and why it helps distinguish substances.
• Calculate or compare density using the relationship between mass and volume.
• Identify how intensive properties like density do not depend on the amount of material.

Learning Objectives

• Understand how weathering breaks down rocks into sediments.
• Identify transport and depositional environments for sediments.
• Describe the processes of lithification that turn sediments into sedimentary rocks.+ Show more

Learning Objectives

• Identify observable evidence that a chemical change has occurred.
• Explain particle-level bond changes during chemical reactions.
• Distinguish chemical changes from physical changes using observations and reasoning.

Learning Objectives

• Explain the concept of long-range forces such as gravity, electric, and magnetic interactions.
• Describe how gravity is universally attractive and its qualitative relationship with mass and distance.
• Identify examples of electric and magnetic phenomena in everyday life and planetary motion.+ Show more

Learning Objectives

• Identify key structural features of organisms that aid in survival
• Describe how physical traits are adapted to specific habitats
• Explain how natural selection influences adaptations+ Show more

Learning Objectives

• Explain how natural climate records (ice cores, sediment layers, tree rings) help scientists infer past temperature and precipitation.
• Describe how modern measurements provide evidence of recent climate trends.
• Identify major long-term climate drivers and explain how they can affect Earth’s energy balance and circulation.

Learning Objectives

• Understand how phenotype results from interactions between genetics and environment.
• Identify examples of environmental influence on traits such as height, skin color, and temperature-sensitive pigmentation.
• Distinguish inherited genetic traits from environmentally modulated traits.+ Show more

Learning Objectives

• Describe the different types of heat transfer: conduction, convection, and radiation.
• Explain how energy transfers between objects during heating and cooling processes.
• Use scientific units like Joules and kilojoules to quantify energy changes.+ Show more

Learning Objectives

• Understand the processes involved in orogeny and mountain formation.
• Identify key features of mountain belts and related geological processes.
• Describe the roles of crustal shortening, uplift, and erosion in mountain evolution.+ Show more

Learning Objectives

• Identify performance metrics and constraints when improving a design
• Use parameter variation and sensitivity analysis to estimate how changes affect outcomes
• Evaluate trade-offs using simple quantitative cost-benefit reasoning

Learning Objectives

• Describe the basic organization of the cell membrane as a fluid mosaic model.
• Identify the functions of phospholipids, proteins, cholesterol, and carbohydrates in the membrane.
• Explain how the structure of the cell membrane regulates transport and communication.+ Show more

Learning Objectives

• Define scientific inquiry as systematic observation, question formulation, hypothesis development, and measurement.
• Distinguish between quantitative and qualitative observations and identify appropriate measurement units.
• Recognize sources of error in scientific experiments and data collection.+ Show more

Learning Objectives

• Explain what chemical properties are and how they describe behaviour during chemical change
• Use observable evidence (gas, colour change, precipitate formation) to infer chemical reactions
• Relate reactivity with acids and bases, combustion potential, oxidation, corrosion, and pH changes to material suitability

Learning Objectives

• Identify the defining features of mutualism, commensalism, and parasitism.
• Use examples to explain how different symbiosis types affect populations over time.
• Describe how symbiotic relationships can change resource distribution and drive coevolution.

Learning Objectives

• Describe different atomic models including particle, ball-and-stick, and lattice representations.
• Explain how atoms form molecules and extended structures like water molecules and crystal lattices.
• Connect subatomic particle relationships with atomic number and chemical formula notation.+ Show more

Learning Objectives

• Explain how push and pull interactions create forces that can change an object's motion
• Differentiate between contact forces and non-contact forces using examples
• Describe how net force influences acceleration (speeding up, slowing down, or changing direction)

Learning Objectives

• Explain how cells convert chemical energy from food into usable energy for life processes.
• Describe how ATP stores and transfers energy inside cells.
• Use the idea of matter conservation to explain what happens to nutrients during energy use.+ Show more

Learning Objectives

• Explain how convection transports heat through fluid motion caused by temperature and density differences.
• Distinguish natural convection from forced convection and describe real-world examples.
• Use boundary-layer and buoyancy ideas to predict how heat transfer patterns can change with conditions.

Learning Objectives

• Understand the differences between exponential and logistic population growth models.
• Identify factors that influence population dynamics, including density-dependent and density-independent factors.
• Interpret how models predict changes in populations under various environmental conditions.+ Show more

Learning Objectives

• Understand the basic differences between elements and compounds
• Identify features such as atomic composition, bonding, and properties
• Learn examples of elements and compounds and their characteristics+ Show more

Learning Objectives

• Interpret descriptive statistics such as mean, median, mode, and interquartile range in context.
• Explain how outliers and variance affect the interpretation of data sets.
• Distinguish between descriptive summaries and basic inferential ideas such as confidence and sample size.

Learning Objectives

• Explain how surface albedo affects solar gain when sunlight strikes a material.
• Describe how emissivity influences radiative heat transfer through infrared emission.
• Compare reflective roofs and low-emissivity glazing as real-world strategies to manage heat exchange.+ Show more

Learning Objectives

• Understand how physical forces and properties change when prototypes are scaled to full size.
• Explain the concepts of square-cube law, surface-to-volume ratio, and Reynolds number in relation to scaling.
• Analyze examples such as models, turbines, and animal physiology to predict performance differences.+ Show more

Learning Objectives

• Explain how matter cycling and energy flow affect ecosystem responses to changing conditions.
• Describe how changes in nutrient availability and decomposition can alter biomass and population sizes.
• Predict cascading effects in food webs when resource inputs or energy availability change.+ Show more

Learning Objectives

• Explain how the circulatory, respiratory, digestive, and nervous systems interact to support homeostasis in multicellular animals
• Describe how oxygen and nutrients move through organ systems and how feedback helps maintain stable internal conditions
• Compare organ-system interactions in animals (human mammalian systems) and relate them to plant vascular transport

Learning Objectives

• Define acceleration and explain how it relates to changes in velocity.
• Describe how force and mass influence acceleration in objects.
• Identify patterns of constant and changing acceleration from velocity data.+ Show more

Learning Objectives

• Understand various physical separation techniques such as filtration, decanting, evaporation, and magnetic separation.
• Identify the physical properties exploited by different separation methods.
• Analyze regional examples of separation processes and their effectiveness.+ Show more

Learning Objectives

• Explain how convection transports heat in fluids and its role in natural phenomena.
• Identify differences between natural and forced convection in real-world applications.
• Describe boundary layers, buoyancy forces, and flow patterns associated with convection.+ Show more

Learning Objectives

• Identify common evidence that a chemical reaction occurred (gas, precipitate, color change, and temperature change).
• Connect observable evidence to how reactants transform into new substances and how mass is conserved.
• Use simple symbolic formulas to describe reactant-to-product changes.

Learning Objectives

• Identify basic components of trusses and their functions
• Outline the principles of internal force distribution within truss structures
• Recognize common truss forms used in bridges and roofs+ Show more

Learning Objectives

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

Learning Objectives

• Understand how walls, roofs, windows, and foundations contribute to thermal performance.
• Identify the impacts of interfaces, thermal bridging, and air infiltration on energy efficiency.
• Compare insulation placement, continuous barriers, and ventilation strategies in managing heat transfer.+ Show more

Learning Objectives

• Explain how tectonic processes and magmatism connect to weathering, erosion, burial, and metamorphism in the rock cycle.
• Describe how uplift and surface processes can expose rocks and restart recycling of Earth materials.
• Use the rock cycle vocabulary to interpret how regional geology and stratigraphic records form over time.

Learning Objectives

• Understand what habitat fragmentation is and how it affects ecosystems.
• Identify the consequences of habitat fragmentation on biodiversity and species survival.
• Explain the concept of landscape connectivity and its importance in ecosystems.+ Show more

Learning Objectives

• Explain how relative motion of the Sun, Earth, and Moon creates predictable lunar phases.
• Use the ideas of axial tilt and orbital geometry to describe day-night and seasonal patterns.
• Connect position changes to eclipses and to repeating cycles in the solar system.

Learning Objectives

• Explain how gravity and water can move Earth materials downslope and across coastlines.
• Describe how saturation and slope instability can lead to landslides.
• Identify ways waves and storm surge reshape beaches, dunes, and shorelines.+ Show more

Learning Objectives

• Explain how plate tectonics can cause earthquakes along faults and drive volcanic activity.
• Describe how weathering, erosion, and deposition change Earth’s surface over time.
• Use evidence such as fault features, lava flows, and sediment layers to connect geologic processes to landforms.