Grade 7 Science Worksheets

Learning Objectives

• Explain how latitude affects the angle of incoming sunlight and regional heating patterns.
• Describe how elevation, distance from water, and ocean currents influence temperature and precipitation.
• Use climate drivers to justify differences between deserts, rain forests, and seasonal weather patterns.

Learning Objectives

• Explain how tectonic activity, weathering, erosion, and deposition shape Earth’s surface.
• Describe how geologic processes can both build up and break down landforms over long time periods.
• Use correct science vocabulary to compare erosion and deposition.

Learning Objectives

• Explain how balanced forces lead to zero net force and constant velocity.
• Describe how unbalanced forces produce nonzero net force and acceleration.
• Use a tug-of-war scenario to predict how motion changes when forces differ.

Learning Objectives

• Explain the conservation of matter during chemical reactions using evidence such as equal total mass of substances before and after.
• Describe how atoms are rearranged in chemical reactions while the total number of atoms remains the same.
• Apply conservation of matter to everyday observations, like mass measurements in sealed containers.

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

• Explain how energy transfers from a higher-energy system to a lower-energy system
• Describe how energy can transform and cause observable changes such as temperature, motion, or light
• Differentiate common energy transfer processes (radiation, conduction, convection) using examples

Learning Objectives

• Explain how balanced and unbalanced forces affect an object's motion
• Describe how a net force relates to changes in speed, direction, or rest
• Use real-world examples (like bicycles and skateboards) to connect force interactions to observable motion

Learning Objectives

• Explain how friction and air resistance oppose motion and reduce an object's speed.
• Describe how surface texture and contact between surfaces affect the strength of resistive forces.
• Use the idea of resistive forces acting opposite motion to predict how quickly objects slow down.+ Show more

Learning Objectives

• Classify samples of matter as elements, compounds, or mixtures based on composition.
• Distinguish homogeneous mixtures from heterogeneous mixtures using visible uniformity.
• Use particle/combination ideas to predict how materials behave during physical and chemical changes.

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

• Differentiate between physical and chemical changes based on whether new substances form
• Identify evidence of chemical changes such as gas production, precipitate formation, color change, and temperature change
• Classify common everyday examples as physical or chemical changes

Learning Objectives

• Identify observable evidence that suggests a chemical reaction has formed new substances.
• Explain how particle rearrangement connects to macroscopic observations like gas, color change, and precipitates.
• Differentiate chemical evidence from physical or reversible changes.

Learning Objectives

• Explain how scientific knowledge develops through empirical investigation and evidence evaluation.
• Describe how alternative explanations and uncertainty are handled in scientific reasoning.
• Evaluate how new data can refine models and lead to changes in explanations.

Learning Objectives

• Explain how measurable data supports or weakens a scientific claim
• Distinguish direct observations from interpretations when analyzing evidence
• Use appropriate units, scales, and comparable methods to evaluate reliability+ Show more

Learning Objectives

• Explain how scientific models represent natural phenomena using relationships like cause-and-effect or energy transfer.
• Evaluate how well a model matches observations and whether its predictions agree with new evidence.
• Distinguish models from exact replicas and describe how models guide scientific reasoning.

Learning Objectives

• Interpret patterns and relationships in scientific graphs such as scatter plots, histograms, and line graphs.
• Compare groups of data using summary measures like range and averages, and explain what those measures suggest.
• Evaluate claims by considering outliers, inconsistencies, and possible measurement uncertainty.

Learning Objectives

• Explain how models use assumptions and simplifications that can limit what they predict accurately
• Identify how discrepancies between observations and predictions can guide revisions to a model
• Distinguish reliable model predictions from approximate representations of complex systems

Learning Objectives

• Identify independent, dependent, and controlled variables in an investigation
• Explain how controlled variables support fair comparisons
• Interpret how changes in the dependent variable relate to the independent variable using data from tables or graphs

Learning Objectives

• Explain the action-reaction relationship between two interacting objects.
• Identify action-reaction force pairs in real-world examples (contact and noncontact).
• Relate acceleration to net force and mass when forces come from interactions.

Learning Objectives

• Explain conservation of matter in a closed system using the idea that atoms are rearranged, not created or destroyed.
• Use evidence from comparing the mass of reactants and products to support the law of conservation of mass.
• Distinguish between physical changes (mixing/dissolving) and chemical changes (new substances) while tracking total matter.

Learning Objectives

• Explain density as mass per unit volume using the particle view.
• Describe how particle spacing and heating can change density even when mass stays the same.
• Use the particle view to predict and explain sinking and floating.

Learning Objectives

• Explain how gravitational force relates to an object's mass and how it affects motion near Earth.
• Describe how support forces (normal forces) balance weight for objects at rest, and predict what happens when support changes.
• Use evidence and vocabulary such as weight, gravitational force, normal force, and acceleration correctly.

Learning Objectives

• Describe the temperature-time behavior during heating and link it to changes of state.
• Explain why phase changes create plateaus on a heating curve.
• Use heating curve stages to interpret particle motion and energy transfer.

Learning Objectives

• Explain how the net force (magnitude and direction) affects an object's motion
• Distinguish between balanced and unbalanced forces using changes in velocity
• Describe how everyday pushes and pulls relate to net force and motion

Learning Objectives

• Explain how matter can be described using particles too small to see
• Describe how particle motion relates to temperature
• Use the particle model to predict changes in macroscopic properties like pressure and diffusion

Learning Objectives

• Explain recoil and thrust using Newton’s third law (action-reaction forces).
• Describe how equal and opposite forces cause different accelerations for different masses.
• Connect action-reaction force pairs to momentum changes in real situations.

Learning Objectives

• Explain how energy transfer during phase changes affects particle motion and arrangement
• Distinguish melting, freezing, evaporation, and condensation using the particle model
• Describe why temperature stays relatively steady during a phase change

Learning Objectives

• Explain how increasing temperature increases particle motion and average spacing, causing thermal expansion in solids and liquids.
• Describe how heating changes gas particle motion and increases pressure in a confined space.
• Use particle theory to predict contraction when temperature decreases.

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 gravity provides the centripetal force that keeps bodies in orbit
• Describe why orbital paths are curved and often elliptical due to changing gravitational direction
• Connect gravity and inertia to predict why objects do not move in straight lines

Learning Objectives

• Explain how infiltration and aquifers store groundwater within Earth’s subsurface.
• Describe how gravity and pressure differences influence groundwater movement and baseflow.
• Identify factors that control recharge and how pumping can change groundwater levels and quality.

Learning Objectives

• Explain how water moves through the atmosphere, land, and oceans during the water cycle
• Describe how energy from the Sun and gravity drive major water cycle processes
• Connect water cycle pathways to weather, climate, and ecosystems

Learning Objectives

• Explain how cells convert chemical energy in food into usable energy for life functions
• Describe how cells use energy to support movement, active transport, and maintaining body temperature
• Model energy and matter changes by explaining that energy changes form while matter is conserved

Learning Objectives

• Explain how energy flow and matter cycling work together to support organisms in an ecosystem
• Predict how changes in nutrients, decomposition conditions, or plant growth can affect populations over time
• Describe how ecosystem stability depends on continued cycling of matter and persistent energy availability

Learning Objectives

• Explain how food molecules are broken down and rearranged inside the body to support growth and repair
• Describe how chemical energy in food becomes usable energy for life processes
• Identify the roles of carbohydrates, proteins, lipids, and vitamins/minerals as food components

Learning Objectives

• Explain how atoms move through an ecosystem during matter cycling processes such as photosynthesis, respiration, feeding, and decomposition.
• Describe how decomposers return nutrients to soil and water so that new plants can grow.
• Distinguish matter cycling (reused atoms) from energy flow (one-way transfer with heat loss).

Learning Objectives

• Explain how matter and energy move through ecosystems using producers, consumers, and decomposers.
• Describe how energy is transferred through food chains and webs and why less energy reaches higher trophic levels.
• Connect metabolism and heat loss to the decreasing amount of usable energy at each trophic level.

Learning Objectives

• Explain how energy transfers through trophic levels in a food web.
• Describe why only a few trophic levels can be supported by available energy and biomass.
• Distinguish between producers, consumers, and how energy transfer efficiency affects predator populations.

Learning Objectives

• Explain how optimization metrics help compare designs when improvements involve tradeoffs.
• Use constraints to decide whether a redesign improves overall performance.
• Identify common metrics such as strength-to-weight ratio, operating cost, and energy conversion efficiency.

Learning Objectives

• Explain how limited resources affect survival and reproduction in an ecosystem.
• Describe how population sizes change when resources are abundant versus scarce.
• Use evidence and scientific reasoning to make predictions about population changes.

Learning Objectives

• Describe the temperature-time behavior of matter during heating curve phases (warming, melting plateau, liquid warming, boiling plateau).
• Explain why temperature can remain constant during phase changes even while heat energy is added.
• Use heating curve data to connect particle-level changes to observable temperature patterns.

Learning Objectives

• Understand how the rock cycle links tectonics, magmatism, and surface processes.
• Identify the pathways of material transformation in the rock cycle.
• Explain how uplift, erosion, burial, and heat contribute to different rock types.+ Show more

Learning Objectives

• Describe different types of volcanic landforms based on magma composition and eruption style.
• Identify the tectonic settings associated with various volcanic features such as arcs and hotspots.
• Explain how volcanic activity influences local topography and crustal growth.+ Show more

Learning Objectives

• Understand the different types of weathering processes and how they affect rocks and landscapes.
• Identify examples of physical, chemical, and biological weathering mechanisms.
• Explain how weathering influences soil formation and landform development.+ Show more

Learning Objectives

• Identify observable signs indicating chemical changes in substances.
• Differentiate between physical and chemical changes using evidence.
• Understand the importance of multiple indicators to confirm a chemical change.+ Show more

Learning Objectives

• Understand the key chemical properties and how they describe a substance.
• Identify observable indicators of chemical reactions.
• Assist in predicting reactions based on chemical properties like flammability, reactivity, and pH.

Learning Objectives

• Understand the difference between closed and open systems in relation to matter transfer.
• Explain how mass is conserved in closed systems during reactions.
• Identify system boundaries and how they affect observed mass changes in open systems.+ Show more

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