Grade 7 Science Worksheets

Learning Objectives

• Explain how forces (pushes and pulls) can change an object's motion.
• Describe net force and how balanced vs. unbalanced forces affect acceleration, speed, and direction.
• Use everyday examples (bicycle, skateboard, friction) to predict changes in motion.

Learning Objectives

• Identify different chemical properties of substances and their observable outcomes.
• Describe how substances react with acids, bases, and other compounds.
• Predict reaction outcomes based on chemical properties such as flammability and reactivity.+ Show more

Learning Objectives

• Understand the geological processes involved in orogeny and mountain formation.
• Identify the effects of tectonic convergence, crustal deformation, and surface erosion on mountain architecture.
• Describe how different surface processes contribute to shaping mountain landscapes over time.+ Show more

Learning Objectives

• Understand the agents responsible for erosion and how they transport sediment.
• Identify distinctive sedimentary signatures produced by different agents.
• Explain how grain size and sorting help interpret landscape evolution and paleoenvironment.+ Show more

Learning Objectives

• Identify and describe the three main types of rocks: igneous, sedimentary, and metamorphic.
• Explain the process of how each rock type forms.
• Analyze mineral content, textures, and structures to distinguish between rock types.+ Show more

Learning Objectives

• Understand how deforestation and habitat loss affect ecosystems.
• Identify human activities that lead to habitat fragmentation.
• Recognize the consequences of habitat loss for biodiversity.+ Show more

Learning Objectives

• Understand how probability concepts predict genetic variation among offspring.
• Apply Punnett squares to determine genotype and phenotype ratios.
• Interpret probability outcomes in monohybrid crosses and larger populations.+ Show more

Learning Objectives

• Explain how energy transfers affect an object's motion energy.
• Identify examples of energy transfer in scenarios like braking, collisions, and bouncing balls.
• Describe the concept of energy bookkeeping and how it helps account for energy changes.+ Show more

Learning Objectives

• Define net force and explain its effects on objects.
• Differentiate between balanced and unbalanced forces.
• Recognize examples of net force in everyday life.+ Show more

Learning Objectives

• Define physical properties and distinguish them from chemical changes
• Use measurements of density, mass, volume, and phase-change temperatures to identify materials
• Explain how molecular structure and intermolecular forces influence observable physical properties

Learning Objectives

• Explain how design criteria and constraints work together in a science/engineering design problem.
• Identify measurable or observable criteria that can be used to judge whether a solution improves performance.
• Describe how trade-offs can happen when meeting one requirement affects another.+ Show more

Learning Objectives

• Understand how to interpret distance-time graphs.
• Identify the meaning of different slopes in graphs.
• Learn how to determine average and instantaneous speed from graphs.+ Show more

Learning Objectives

• Explain how DNA molecules are organized into chromosomes and how they encode genes.
• Describe the process of chromosome segregation during gamete formation and fusion.
• Understand how genetic variation in DNA sequences leads to observable traits.+ Show more

Learning Objectives

• Understand how to interpret data from graphs and observations in scientific contexts.
• Learn to support scientific claims with specific data references.
• Explain how evidence justifies scientific reasoning.+ Show more

Learning Objectives

• Explain the conservation of matter principle for chemical reactions.
• Use mass measurements to predict whether total mass changes during a reaction.
• Describe how atoms are reorganized during chemical reactions without being created or destroyed.

Learning Objectives

• Explain independent, dependent, and controlled variables using operational definitions.
• Design a fair test by identifying variables, using consistent measurement criteria and timing, and minimizing bias.
• Describe how replication and control groups help reduce confounding and improve causal conclusions.

Learning Objectives

• Identify how melting point, boiling point, conductivity, refractive index, and gravimetric residue can indicate purity
• Explain how impurities can shift physical properties and widen melting ranges
• Use more than one line of evidence to support a claim about whether a sample is pure

Learning Objectives

• Understand how matter such as carbon and nitrogen move through ecosystems
• Identify pathways like photosynthesis, respiration, decomposition, and nutrient transport
• Explain the role of decomposers in nutrient recycling+ Show more

Learning Objectives

• Understand the concept of trophic levels in an ecosystem.
• Identify primary producers, consumers, and decomposers in energy transfer.
• Explain how energy moves from one trophic level to the next.+ Show more

Learning Objectives

• Explain how conduction transfers kinetic energy in solids through particle-to-particle collisions
• Compare how different materials conduct heat using conductivity ideas
• Describe how interfaces, material contact, and contact resistance influence heat flow and temperature gradients+ Show more

Learning Objectives

• Identify physical and chemical properties of matter using everyday examples.
• Explain how properties help classify and distinguish substances under consistent conditions.
• Determine whether statements about matter properties are true or false.

Learning Objectives

• Define equilibrium as the condition where the vector sum of forces equals zero.
• Distinguish between static and dynamic equilibrium through examples and analysis.
• Describe roles of forces such as normal, gravitational, tension, and net force in achieving equilibrium.+ Show more

Learning Objectives

• Understand different methods of separating matter based on properties.
• Identify physical changes that do not produce new substances.
• Distinguish between physical separation and chemical change.+ Show more

Learning Objectives

• Understand the principles of convective heat transfer in fluids.
• Identify the roles of buoyancy and density variations in convection.
• Relate convection mechanisms to environmental phenomena such as sea breezes, thermals, and lake overturning.+ Show more

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

• Explain how habitat protection, restoration, and species management reduce human impacts on ecosystems
• Use ideas from food webs, population dynamics, and abiotic factors to predict the effects of conservation actions
• Describe how monitoring and adaptive policies help conservation strategies improve over time

Learning Objectives

• Interpret position–time and velocity–time graphs to describe motion patterns
• Use graph slope to identify velocity or acceleration appropriately
• Connect data tables with graph shapes to explain constant and changing motion

Learning Objectives

• Explain how friction affects the motion of objects on different surfaces using qualitative evidence.
• Describe gravity as a force that produces acceleration and changes apparent weight on slopes.
• Differentiate between contact forces (like friction and normal force) and long-range forces (like gravity).

Learning Objectives

• Explain how energy transfers from a higher-energy object or system to a lower-energy one.
• Describe how energy can change form (transform) during an energy transfer.
• Connect energy transfers to observable effects such as temperature change, motion, or light emission.+ Show more

Learning Objectives

• Identify key drivers of climate change such as greenhouse gases, land-use change, and natural variability.
• Analyze temperature and CO2 records to understand climate trends.
• Assess impacts of climate change on sea levels, precipitation, and agriculture.+ Show more

Learning Objectives

• Identify different types of matter: pure substances, mixtures, and solutions.
• Understand the properties of pure substances and how they differ from mixtures.
• Explain what makes a solution homogeneous and how solute particles disperse.+ Show more

Learning Objectives

• Analyze and compare different design options using quantitative motion data and structural assessments.
• Evaluate the impact of material choices, mechanical advantage, and safety considerations in regional applications.
• Synthesize information from mechanical calculations and structural criteria to support reasoned design selections.

Learning Objectives

• Understand descriptive statistics such as mean, median, and mode.
• Interpret measures of dispersion including interquartile range and variance.
• Recognize the role of outliers and limitations of small samples.+ Show more

Learning Objectives

• Understand the distribution and significance of natural resources in Earth systems.
• Describe the processes of groundwater flow, aquifer recharge, and soil formation.
• Differentiate between renewable and nonrenewable resources in various geologic settings.+ Show more

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

Learning Objectives

• Explain how models help scientists make predictions from observations
• Differentiate physical, diagrammatic, and computational models and give an example of each
• Use a diagram of lunar phases to predict what the Moon will look like from Earth+ Show more

Learning Objectives

• Understand the causes of deforestation and its impact on ecosystems.
• Identify human activities that contribute to environmental degradation.
• Analyze the consequences of deforestation for biodiversity and climate.+ Show more

Learning Objectives

• Define physical properties and explain how they help identify and sort substances
• Describe density and solubility and connect each property to measurable observations
• Use evidence from measurements to separate mixtures and make material choices

Learning Objectives

• Explain what trophic efficiency means and how energy changes between trophic levels
• Describe why energy pyramids shrink toward higher trophic levels
• Use the ideas of losses (heat, respiration, waste) to predict how many consumer levels can exist

Learning Objectives

• Explain the concepts of kinetic and potential energy and how they relate to forces and motion.
• Describe how elevation, mass, and speed influence mechanical energy in systems like sled descents and conveyors.
• Illustrate qualitative conversion between potential and kinetic energy in mechanical systems.+ Show more

Learning Objectives

• Explain how waves transfer energy without permanently moving matter
• Distinguish transverse waves from longitudinal waves using particle motion
• Identify how amplitude and wavelength relate to energy and spacing in a wave pattern+ Show more

Learning Objectives

• Explain how chromosome segregation and independent assortment during meiosis create genetic variation.
• Describe how genetic differences among siblings arise even when parents are the same.
• Connect genetic variation to possible differences in survival and reproduction over generations.

Learning Objectives

• Understand the various force systems driving Earth's plate motion, including mantle convection, slab pull, and ridge push.
• Explain how mantle convection creates convection cells that transfer momentum to the lithosphere.
• Identify the roles of slab pull and ridge push in tectonic plate movements.+ Show more

Learning Objectives

• Explain how insulation reduces heat transfer by addressing conduction, convection, and radiation
• Compare insulating materials (fibreglass, foam, and reflective foils) in terms of how they slow heat flow
• Describe how air leakage, thermal bridging, and continuous insulation affect overall heat loss

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

• Understand the principles of density-driven separation techniques such as decanting, floatation, and centrifugation.
• Identify examples of density separation in real-world applications like oil-water separation and blood fractionation.
• Explain how buoyant force, sedimentation rate, and centrifugal acceleration influence particle separation based on density and size.+ 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

• Understand the difference between weather and climate.
• Identify key weather variables such as temperature, precipitation, humidity, and wind.
• Describe how climate involves long-term patterns and averages of weather variables.+ Show more