Grade 7 Science Worksheets

Learning Objectives

• Understand the basic components of ecosystems, including matter cycling and energy flow.
• Learn how changes in nutrient availability and plant growth affect ecosystems.
• Recognize the roles of producers, consumers, and decomposers in an ecosystem.+ Show more

Learning Objectives

• Understand the principles of chromatography, including differential partitioning, stationary and mobile phases.
• Identify examples of paper and thin-layer chromatography using plant dyes and ink.
• Interpret retention factors, resolution, and limitations in chromatography experiments.+ Show more

Learning Objectives

• Understand the different types of forces acting on objects.
• Explain how forces cause changes in motion.
• Distinguish between balanced and unbalanced forces.+ Show more

Learning Objectives

• Explain how non-native species can disrupt ecosystems through competitive displacement and changes in food webs.
• Describe at least two pathways by which invasive species are introduced and establish in new habitats.
• Identify long-term ecological and economic consequences of invasive species management challenges.+ Show more

Learning Objectives

• Describe how population size changes using births, deaths, immigration, and emigration.
• Explain how population density and distribution affect competition and mating.
• Use population growth concepts to interpret short-term fluctuations and long-term trends.

Learning Objectives

• Identify clear criteria and measurable constraints in real-world problems
• Understand how to translate societal and environmental requirements into quantitative targets
• Recognize the importance of defining success measures before designing solutions

Learning Objectives

• Understand the criteria used to evaluate species' conservation risk.
• Identify examples of species at risk and factors influencing their vulnerability.
• Interpret evidence related to land use, genetic diversity, and connectivity in conservation assessments.+ Show more

Learning Objectives

• Understand the different types of rocks and how they are formed.
• Identify key features that distinguish igneous, sedimentary, and metamorphic rocks.
• Explore the processes involved in the formation and classification of rocks.+ Show more

Learning Objectives

• Understand the concept of individual organisms and their traits.
• Identify different levels of ecological organization from individuals to ecosystems.
• Recognize examples of ecological levels in Alberta, such as trout and river ecosystems.+ Show more

Learning Objectives

• Explain how matter moves through ecosystems using nutrient cycles (carbon, nitrogen, and phosphorus).
• Describe the roles of photosynthesis, respiration, decomposition, and bacteria in nutrient transformations.
• Use nutrient-cycle ideas to explain how limiting nutrients affect ecosystem productivity.

Learning Objectives

• Explain what a tradeoff is when comparing competing engineering design options.
• Identify how criteria and constraints guide which design improvements are acceptable.
• Use tradeoff mapping to justify a design choice using evidence and limits.

Learning Objectives

• Explain how temperature gradients influence different environments.
• Identify the role of light, soil, moisture, and pH in shaping ecosystems.
• Describe microhabitats within ponds, forests, and meadows based on abiotic factors.+ Show more

Learning Objectives

• Explain how births, deaths, immigration, and emigration change population size over time
• Describe limiting factors and how they can slow or speed population growth
• Connect predator-prey relationships to changes (oscillations) in population numbers

Learning Objectives

• Explain how wildfires impact plant and animal populations.
• Identify mechanisms by which ecosystems recover after disturbances.
• Interpret empirical data related to ecosystem responses to disturbances.+ Show more

Learning Objectives

• Understand different methods to separate mixtures based on properties
• Identify properties such as density and solubility that influence separation techniques
• Distinguish between physical changes and chemical changes in matter+ Show more

Learning Objectives

• Explain how pure substances have uniform composition and characteristic physical and chemical properties.
• Differentiate elements and compounds based on composition and how they can be identified.
• Use physical and chemical test ideas to interpret how mixtures may show deviations from pure-substance benchmarks.+ Show more

Learning Objectives

• Explain how the Sun’s energy, atmospheric circulation, and water distribution contribute to Earth’s climate.
• Describe how ocean processes can modify regional climate by changing how heat is stored and released.
• Use cause-and-effect reasoning to predict how changes in climate drivers can shift patterns like drought or wet seasons.

Learning Objectives

• Understand the principles of chromatographic separation based on differential partitioning, stationary and mobile phases, and molecular polarity.
• Identify different types of chromatography such as paper and thin-layer chromatography and interpret retention factors.
• Analyze chromatography patterns for component separation, resolution, and limitations in purification.+ Show more

Learning Objectives

• Explain how igneous, sedimentary, and metamorphic rocks can transform through the rock cycle.
• Describe how energy and material flow drive processes like melting, crystallization, weathering, and metamorphism.
• Use canonical examples (magma at subduction zones, sediment layers in river basins, contact metamorphism) to trace pathways and timescales.

Learning Objectives

• Understand various methods of organizing data such as tables and graphs.
• Interpret graphical displays to identify trends and relationships.
• Select appropriate graph types for different data sets.+ Show more

Learning Objectives

• Define gravity and explain its role in the solar system.
• Describe how gravity influences the orbit of planets and other celestial bodies.
• Identify examples of gravitational effects on objects on Earth and in space.

Learning Objectives

• Define evaporation and crystallization processes
• Identify key factors influencing crystal formation
• Explain how impurities affect crystal purity+ Show more

Learning Objectives

• Understand the concept of biodiversity and its importance in ecosystems.
• Identify factors that threaten biodiversity and ecosystem stability.
• Analyze how different species contribute to ecosystem processes and stability.

Learning Objectives

• Understand the concept of astronomical units, light-years, and planetary diameters as measures of scale in the solar system and beyond.
• Interpret scaled diagrams and logarithmic representations showing planetary positions, distances, and the extent of the heliosphere.
• Analyze data to comprehend orders of magnitude differences and how scale influences observational capabilities and apparent motion in space.

Learning Objectives

• Understand different types of morphological adaptations in animals.
• Identify examples of physical traits that enhance survival in specific environments.
• Explain how adaptations differ from acclimations and their importance for survival.

Learning Objectives

• Define the particle model of matter
• Describe how particle motion relates to temperature
• Explain macroscopic properties like pressure and diffusion in terms of particles+ Show more

Learning Objectives

• Understand the concept of specific heat capacity and its significance in thermal processes.
• Perform calculations involving mass, specific heat, and temperature change to estimate energy transfer.
• Recognize units used in heat capacity calculations and convert between Joules, kilojoules, grams, and degrees Celsius.+ Show more

Learning Objectives

• Explain how birth rate, death rate, immigration, and emigration affect population size over time.
• Describe how resource availability and abiotic constraints influence where populations can persist.
• Interpret population trend ideas to explain local extirpations or expansions.+ Show more

Learning Objectives

• Understand the classification of substances as elements, compounds, or mixtures based on their composition.
• Identify characteristics of pure substances and mixtures, including their properties and examples.
• Distinguish between natural and manufactured materials such as alloys and suspensions.+ Show more

Learning Objectives

• Identify performance metrics and constraints in an engineering design problem
• Use basic trade-off reasoning to compare options using cost, durability, strength, and sustainability
• Explain how parameter variation and sensitivity analysis help improve a design+ Show more

Learning Objectives

• Describe basic population growth models, including exponential and logistic growth.
• Identify factors limiting population size, such as food, predation, disease, and environmental stresses.
• Differentiate between density-dependent and density-independent factors affecting populations.+ Show more

Learning Objectives

• Identify independent, dependent, and controlled variables in an investigation and describe how they relate to cause-and-effect claims.
• Use operational definitions to explain exactly how variables will be measured.
• Design a fair test by controlling confounding factors and using control groups and replication.

Learning Objectives

• Understand how temperature impacts species distribution and ecosystem health.
• Identify the effects of abiotic factors like temperature on plant and animal habitats.
• Analyze gradients and microclimates related to temperature variations.+ Show more

Learning Objectives

• Explain how allele frequencies change over time using simple quantitative models.
• Use probability and basic population-genetics ideas to interpret patterns of inheritance and selection.
• Analyze fitness differences with graphs or frequency tables to predict population responses.+ Show more

Learning Objectives

• Understand the concept of momentum and how mass and velocity influence it.
• Differentiate between elastic and inelastic collisions.
• Explain the conservation of momentum during collisions.+ Show more

Learning Objectives

• Explain what kinetic energy is and how it relates to motion.
• Identify factors like mass and speed that affect kinetic energy.
• Interpret graphs showing the relationship between kinetic energy, mass, and speed.+ Show more

Learning Objectives

• Explain conservation of mass in a sealed system using cause-and-effect language.
• Identify how inputs and outputs relate to total mass in a closed container.
• Use mass accounting ideas to predict what should happen to product mass when no matter can enter or leave.

Learning Objectives

• Identify features associated with divergent boundaries.
• Understand the processes that create mid-ocean ridges and rift valleys.
• Recognize the role of magma upwelling in landform development.+ Show more

Learning Objectives

• Explain how to frame an ecological question and form a testable hypothesis
• Identify measurable variables and describe how data supports or challenges a hypothesis
• Interpret ecological data while accounting for natural variability+ Show more

Learning Objectives

• Understand the properties of timber, steel, and reinforced concrete under different load conditions.
• Compare material behavior under compression, tension, and bending in structural applications.
• Analyze how environmental factors like frost and snow affect material performance in load-bearing structures.+ Show more

Learning Objectives

• Understand the basic principles of energy conversion devices
• Identify different types of energy transfers in common devices
• Explain the concept of energy conservation during transformation+ Show more

Learning Objectives

• Translate distance–time and speed–time data into correctly labeled graphs and interpret what the curves mean
• Use slope to explain changes in motion, including how faster speeds relate to steeper lines on graphs
• Determine average and instantaneous rates from motion graphs and connect these to real situations

Learning Objectives

• Identify natural records that show past climate changes
• Understand how ice cores, sediment layers, and tree rings reflect climate history
• Explore how long-term drivers influence Earth's climate system

Learning Objectives

• Understand the importance of ethical considerations in scientific reporting and data sharing.
• Identify conventions for transparent and responsible communication of scientific findings.
• Recognize the role of community involvement and reflection on unintended consequences in STEM practices.+ Show more

Learning Objectives

• Define invasive species and describe their characteristics.
• Explain how invasive species affect native ecosystems.
• Identify ecological consequences caused by invasive species.+ Show more

Learning Objectives

• Understand the key components of experiment design, including variables and controls.
• Learn how to establish operational definitions and select appropriate control conditions.
• Recognize the importance of reproducibility, sample size, and ethical considerations in experiments.+ Show more

Learning Objectives

• Explain how structural, physiological, and behavioral adaptations help organisms survive in specific habitats.
• Describe how selective pressures such as temperature, moisture, predation, and resource availability can shape adaptations.
• Identify adaptive trade-offs and how adaptations influence where organisms can live.+ Show more

Learning Objectives

• Understand how waves transfer energy without moving matter permanently.
• Differentiate between transverse and longitudinal waves based on particle motion.
• Explain the relationship between amplitude, wavelength, and energy in waves.+ Show more