Worksheet Worksheets

Learning Objectives

• Explain how temperature relates to average random kinetic energy of particles.
• Describe how thermal energy depends on particle number and phase.
• Use molecular motion ideas to compare thermal states and pressures.

Learning Objectives

• Explain how solubility changes with temperature for solids in liquids and with pressure for gases
• Describe how agitation and particle size affect the rate of dissolving and sometimes the amount dissolved
• Use evidence from examples (such as salts in lakes and road salt) to predict solubility outcomes under new conditions

Learning Objectives

• Explain how calorimetry uses temperature change to determine energy transfer
• Calculate and compare heat energy changes using specific heat and mass
• Describe how heat moves during melting, heating, and combustion scenarios

Learning Objectives

• Explain how conservation of mass applies to closed-system reactions.
• Use mass accounting to relate reactant masses to product masses.
• Compare theoretical and measured yields using completeness of a reaction.

Learning Objectives

• Describe how temperature differences create density differences that drive convection
• Compare natural and forced convection using real-world examples
• Identify features of boundary layers and flow patterns that affect heat transfer+ Show more

Learning Objectives

• Explain that mass is conserved in a closed system during physical or chemical changes
• Use reactants and products to predict that total mass before and after remains equal
• Interpret sealed-container observations to support conservation of mass+ Show more

Learning Objectives

• Explain how thermal conductivity and specific heat capacity affect heat transfer and temperature change.
• Compare how density, porosity, and moisture content influence effective thermal conductivity in building materials.
• Describe why phase change materials can change thermal behavior during heating or cooling.+ Show more

Learning Objectives

• Explain how body structure and function help organisms find food and defend themselves
• Describe how water-storing adaptations support survival in dry habitats
• Use evidence from examples to match an adapted body part to its purpose+ Show more

Learning Objectives

• Describe the major stages of an animal life cycle from birth or hatching to adulthood.
• Explain how different life stages can have different needs and risks within a species.
• Identify how metamorphosis changes an animal’s body structures and diet as it grows.+ Show more

Learning Objectives

• Describe how digestive and respiratory systems help organisms obtain energy and remove waste.
• Identify major parts of the human digestive and respiratory systems and explain their basic functions.
• Compare oxygen exchange and waste removal structures in humans, fish, and insects.+ Show more

Learning Objectives

• Describe how energy moves through a food chain from producers to consumers.
• Explain how the number of organisms at higher levels depends on the level before them.
• Use vocabulary from food chains, including producers, consumers, and energy transfer.+ Show more

Learning Objectives

• Explain how food web links multiple food chains together in an ecosystem
• Identify how changes in one population can affect other populations in a food web
• Use examples to describe feeding relationships between producers, consumers, and predators

Learning Objectives

• Explain how changes in temperature, rainfall, or light can affect plant growth and food availability.
• Describe how habitat loss or fragmentation can reduce survival and change population sizes over time.
• Use cause-and-effect reasoning to predict how some species increase while others decrease during ecosystem rebalancing.

Learning Objectives

• Explain how invasive species can disrupt an ecosystem by competing with native organisms.
• Describe how predators and prey relationships in a food web can change when a new organism spreads.
• Use evidence from a passage to identify factors that affect population numbers over time.

Learning Objectives

• Describe the main stages of a flowering plant life cycle from seed to mature plant.
• Explain how reproduction leads to seeds and how seeds help a species continue over time.
• Identify ways plants spread and connect dispersal to increased success in local conditions.+ Show more

Learning Objectives

• Explain how polluted water and air can harm living systems and reduce survival.
• Identify ways pollution can affect human health through body systems.
• Match common pollution-related terms with correct definitions or examples.+ Show more

Learning Objectives

• Explain how a closed circuit lets current flow and affects a nearby magnet.
• Describe how changing circuit position (open vs. closed) changes observable magnetic influence.
• Use evidence from compass deflection to connect current-carrying wires to magnetic effects.+ Show more

Learning Objectives

• Describe what you can observe when sugar dissolves in water compared with when sand is mixed in water.
• Explain how dissolving can make a mixture look uniform even though microscopic particles are still present.
• Identify how stirring and heating or cooling can affect a dissolving solution.

Learning Objectives

• Describe how a closed circuit with a current can produce a magnetic effect nearby.
• Explain how magnetic forces can act at a distance without direct contact.
• Use evidence from observations to predict how a compass responds near a magnet or current-carrying wire.

Learning Objectives

• Identify different forms of energy and describe how they can interact.
• Explain how energy can transfer from one place to another during an interaction.
• Describe how energy can change form without creating new energy out of nowhere.+ Show more

Learning Objectives

• Explain how gravity affects the motion of objects on the ground and on slopes
• Describe how friction acts opposite motion and how surface roughness changes speed changes
• Predict how changing forces can change an object's direction or speed+ Show more

Learning Objectives

• Explain that heat transfer moves thermal energy from warmer materials to cooler materials
• Describe how temperature changes can show that heat transfer is happening
• Compare heat transfer with direct contact and heat transfer without contact across a surface

Learning Objectives

• Identify physical properties of common materials, such as color, texture, hardness, flexibility, density, and heat/electric conductivity.
• Compare materials by using observations made under the same conditions.
• Match material properties to suitable real-life uses.+ Show more

Learning Objectives

• Describe how mixing and dissolving change matter in observable ways.
• Explain how heating and cooling relate to temperature changes as evidence of change.
• Use observations to distinguish physical change from changes involving different forms of matter.

Learning Objectives

• Explain how melting changes matter from a solid to a liquid.
• Explain how freezing changes matter from a liquid to a solid.
• Use thermometer readings to describe the direction of a temperature change.+ Show more

Learning Objectives

• Describe how forces can change an object’s motion (starting, stopping, speeding up, slowing down, or changing direction).
• Use a simple force-arrow model to represent pushes and pulls on an object.
• Compare what happens when a stronger force or a sideways force is applied to a moving object.+ Show more

Learning Objectives

• Identify the difference between a measured result and an inferred explanation in a science claim
• Connect evidence to a claim by describing the pattern observed in a graph or table
• Explain how models predict patterns and how evidence supports or limits the claim

Learning Objectives

• Organize measurements in tables and identify patterns in data.
• Use line graphs or bar graphs to compare variables and describe trends.
• Explain why evidence-based claims rely on patterns, not single results.+ Show more

Learning Objectives

• Explain how scientific models represent a phenomenon using simplified features.
• Connect parts of a model to the scientific ideas the model is meant to show.
• Identify what a model can and cannot show, using evidence from the model itself.

Learning Objectives

• Describe a scientific question using precise language and key variables.
• Differentiate observations from interpretations in scientific communication.
• Choose and label appropriate representations (tables or graphs) and use consistent units.+ Show more

Learning Objectives

• Identify the independent variable, dependent variable, and controls in a testable science study
• Explain why consistent measurement methods and units matter when comparing results
• Use evidence from data to support claims about how a variable affects outcomes+ Show more

Learning Objectives

• Explain how fair comparisons depend on controlling conditions and changing only one independent variable.
• Identify variables in a science investigation and describe how measurements support trustworthy comparisons.
• Use evidence from data to justify conclusions and reduce alternative explanations.

Learning Objectives

• Explain what a trade-off is when designing a solution under constraints.
• Identify how improving one feature can worsen another feature.
• Use material properties and safety needs to justify design choices.+ Show more

Learning Objectives

• Identify the purpose of planning in the engineering design process, including criteria and constraints.
• Explain how building a prototype enables testing and refinement.
• Describe how testing results guide improvements while staying within constraints.+ Show more

Learning Objectives

• Explain how a chosen technology solution meets a stated need or criteria in an everyday situation.
• Identify key features of a solution and describe how they help meet the problem requirements.
• Compare outcomes to requirements and describe limits of a solution using clear, complete sentences.+ Show more

Learning Objectives

• Identify the need, criteria for success, and constraints in an engineering scenario
• Write a clear problem statement using measurable criteria and realistic constraints
• Explain how criteria and constraints guide design decisions

Learning Objectives

• Explain how trial results can be used to decide what to change in a prototype or model.
• Match prototype modifications to evidence from performance measures.
• Use prototype testing ideas to predict how a design change may affect results.

Learning Objectives

• Identify how wheels and axles, levers, and pulleys change motion or force in simple technologies.
• Match technology parts to their functions and explain how each part supports a specific outcome.
• Use key vocabulary to complete explanations of how simple mechanisms work.

Learning Objectives

• Explain how Earth’s rotation causes regular day and night cycles at different locations.
• Describe how the Sun’s apparent path in the sky relates to sunrise and sunset.
• Predict how changing sunlight angle and duration can affect the brightness and length of daytime.

Learning Objectives

• Describe how rocks, soil, and water have observable properties.
• Identify how materials interact and change through processes like breaking apart and mixing with water.
• Use observations to compare how Earth materials behave in different situations.

Learning Objectives

• Describe how short-term weather changes can form a pattern over days.
• Explain how precipitation, clouds, and wind connect to changes in temperature.
• Use multiple observations to predict what may happen next in a weather sequence.

Learning Objectives

• Describe how weathering changes rock into smaller rock pieces over time
• Explain how water, wind, and temperature shifts affect rock surfaces
• Connect how weathered rock fragments and organic matter form soil+ Show more

Learning Objectives

• Explain how Earth’s tilt changes the angle of sunlight on different hemispheres.
• Describe how the length of daylight varies during the year and how it relates to temperature.
• Interpret a simple sky model to predict longer and shorter days.

Learning Objectives

• Describe the main pathways of the water cycle, including evaporation, condensation, precipitation, and runoff or infiltration.
• Explain how changing state helps water move between Earth’s atmosphere and surface and how water returns to land.
• Match water cycle terms to their definitions or examples.+ Show more

Learning Objectives

• Identify major Earth water reservoirs such as oceans, rivers, lakes, glaciers, groundwater, and soil water.
• Explain how water moves between reservoirs through evaporation and infiltration.
• Describe how water movement affects how long water stays available in local areas after rainfall.

Learning Objectives

• Describe how weather includes short-term temperature, precipitation, wind, and cloud cover.
• Explain how comparing observations over time helps identify weather patterns.
• Use key vocabulary from weather data to interpret simple scenarios.+ Show more

Learning Objectives

• Explain how the law of conservation of mass applies to closed and near-closed systems in science investigations
• Use mass-balance reasoning to compare measured and expected masses in practical scenarios
• Identify how reaction stoichiometry and waste accounting rely on conservation of mass+ Show more

Learning Objectives

• Identify indicators of physical changes in matter, such as phase changes and dissolving without new substances.
• Explain how particle rearrangement and energy transfer can change a substance’s form without changing its chemical identity.
• Use mass evidence from closed systems to support claims about physical change.