Grade 7 Science Worksheets

Learning Objectives

• Understand the concepts of gravity and weight
• Recognize how gravity affects objects near Earth
• Learn the difference between mass and weight+ Show more

Learning Objectives

• Explain how an organism’s traits can affect its fitness in a specific environment.
• Describe how natural selection can shift which heritable traits are favored as environments change.
• Connect heritable variation to how populations respond over time, even within the same species.

Learning Objectives

• Understand the importance of controlling variables in scientific experiments
• Learn methods for systematic variable management including randomization, blocking, and documentation
• Identify different types of variables and strategies to manage them in controlled studies+ Show more

Learning Objectives

• Explain how invasive (non-native) species can affect native species through competition and trophic changes.
• Describe multiple pathways by which invasive species are introduced to new ecosystems.
• Analyze how establishment conditions influence whether an invasive species successfully spreads.+ Show more

Learning Objectives

• Explain how gravity is a force that attracts objects and affects motion near Earth
• Differentiate between mass and weight and describe how weight depends on gravity
• Predict and interpret changes in an object’s motion as gravity accelerates it

Learning Objectives

• Understand the concept of gravity as a force that attracts objects toward Earth.
• Differentiate between weight and mass.
• Explain how gravity affects objects in free fall.+ Show more

Learning Objectives

• Understand the importance of accuracy and precision in scientific measurements
• Recognize different types of measurement errors
• Learn how to select appropriate measurement instruments+ Show more

Learning Objectives

• Understand the concepts of accuracy, precision, and measurement uncertainty.
• Identify sources of systematic and random errors in measurement.
• Learn techniques for estimating and reporting measurement uncertainty.+ Show more

Learning Objectives

• Compare elements and compounds using atomic composition, chemical formulas, and bonding
• Explain how chemical combination changes observable properties such as melting point and conductivity
• Identify substances as elements or compounds based on particle type and fixed ratios

Learning Objectives

• Understand key concepts of measurement accuracy and precision.
• Identify sources of systematic and random errors in measurements.
• Apply significant figures and calibration techniques to experimental data.+ Show more

Learning Objectives

• Identify and manage variables within controlled scientific experiments.
• Understand strategies for randomization, blocking, and replication in experiments.
• Apply systematic methods to control confounding influences in scientific testing.+ Show more

Learning Objectives

• Distinguish between elements and compounds based on atomic composition and properties.
• Understand how chemical bonding affects the characteristics of substances.
• Identify examples of elements and compounds and describe their features.+ Show more

Learning Objectives

• Understand the ecological consequences of invasive species introductions.
• Recognize pathways and factors facilitating the establishment of invasive species.
• Evaluate the long-term ecological and economic effects of non-native species.+ Show more

Learning Objectives

• Identify different types of variables in controlled experiments.
• Understand strategies for managing variables to ensure valid results.
• Recognize the importance of control groups and replication in scientific testing.+ Show more

Learning Objectives

• Identify independent, dependent, and controlled variables in scientific experiments.
• Understand the importance of variable control for valid experimental results.
• Learn how to systematically select control groups and replicate trials.+ Show more

Learning Objectives

• Understand the ecological and economic consequences of invasive non-native species.
• Identify pathways and factors that facilitate invasive species establishment.
• Analyze long-term impacts such as reduced native biodiversity and altered ecosystems.+ Show more

Learning Objectives

• Understand what invasive species are and how they enter new environments.
• Identify pathways of invasive species introduction.
• Recognize ecological and economic consequences of invasive species.+ Show more

Learning Objectives

• Understand the difference between elements and compounds
• Identify examples of elements and compounds
• Recognize the atomic composition and properties of elements and compounds

Learning Objectives

• Differentiate elements and compounds by describing their atomic composition and bonding.
• Explain how chemical formulas reflect fixed atomic ratios in compounds.
• Connect macroscopic properties (melting point and conductivity) to the difference between elements and compounds.+ Show more

Learning Objectives

• Understand the differences between elements and compounds.
• Identify examples of elements and compounds.
• Learn about atomic composition, bonding, and properties of elements and compounds.+ Show more

Learning Objectives

• Understand the difference between elements and compounds based on atomic composition and properties.
• Identify characteristic features such as melting point, conductivity, and fixed ratios of atoms in compounds.
• Explain how chemical bonding and composition affect the properties of substances.+ Show more

Learning Objectives

• Identify the differences between elements and compounds based on atomic composition and bonding.
• Understand how the properties of substances change when elements combine to form compounds.
• Learn to recognize examples of elements and compounds and understand fixed atomic ratios.

Learning Objectives

• Compare elements and compounds based on atomic composition and chemical formulas.
• Explain how bonding and fixed atom ratios affect properties such as conductivity and melting point.
• Use particle-level reasoning to classify substances and predict separation implications.

Learning Objectives

• Understand the differences between elements and compounds based on atomic composition and bonding.
• Identify examples of elements and compounds and describe their characteristic properties.
• Explain how chemical combinations alter properties compared to the constituent elements.

Learning Objectives

• Compare elements and compounds using atomic composition
• Interpret chemical formulas to identify fixed atomic ratios
• Explain how bonding influences observable properties of compounds+ Show more

Learning Objectives

• Explain how atomic composition and bonding distinguish elements from compounds.
• Use chemical formulas to identify fixed ratios of atoms in compounds.
• Compare physical properties (such as conductivity and melting point) of elements and compounds.

Learning Objectives

• Explain how fitness relates to survival and reproduction in a particular environment
• Describe how environmental changes can change which heritable traits are favored by natural selection
• Connect fitness outcomes to variation within a population and changing selection pressures

Learning Objectives

• Explain how fitness relates to survival and reproduction in a specific environment
• Describe how environmental changes can change which traits are favored by natural selection
• Connect fitness to heritable variation and how populations can respond over time

Learning Objectives

• Explain how fitness relates to survival and reproduction in a specific environment
• Describe how natural selection can favor different traits when selection pressures change
• Connect heritable variation to how populations can change over time

Learning Objectives

• Understand what fitness means in biological terms
• Identify traits that support survival and reproduction in specific environments
• Recognize how changing environments influence trait selection+ Show more

Learning Objectives

• Identify the main mechanisms of heat transfer: conduction, convection, and radiation.
• Explain how heat transfer relates to temperature change and the movement of thermal energy.
• Use examples (spoon in hot liquid, air currents, a lamp, and an electrical circuit) to match evidence to the correct mode of heat flow.

Learning Objectives

• Identify conduction, convection, and radiation as energy-transfer mechanisms
• Explain how thermal energy moves between warmer and cooler regions
• Use temperature changes as evidence of thermal energy transfer+ Show more

Learning Objectives

• Identify and describe the mechanisms of heat transfer: conduction, convection, radiation, sound, and electric current.
• Explain how energy transfer affects temperature and rate differences in objects and environments.
• Use examples to illustrate different modes of heat transfer and measure evidence of transfer.

Learning Objectives

• Describe thermal energy transfer through conduction, convection, and radiation
• Identify evidence of heat transfer from temperature changes
• Compare heat transfer rates across different materials and modes+ Show more

Learning Objectives

• Understand the mechanisms of heat transfer: conduction, convection, radiation
• Identify examples of heat transfer in everyday life
• Describe measurable evidence of heat transfer+ Show more

Learning Objectives

• Describe how heat energy transfers between objects through conduction, convection, and radiation.
• Explain how temperature change and rate differences provide evidence of heat transfer.
• Connect heat transfer to real-world examples such as air currents, lamps, and electrical circuits.

Learning Objectives

• Identify and compare the three main modes of heat transfer: conduction, convection, and radiation.
• Use temperature changes and evidence from real-life situations to explain how heat energy moves.
• Distinguish how transfer rates differ across materials and environments.

Learning Objectives

• Describe how thermal energy moves through conduction, convection, and radiation using real-world examples.
• Connect temperature changes and observable evidence to the type of heat transfer and the idea of heat flow.
• Compare how quickly different heat transfer modes can move energy in everyday situations.

Learning Objectives

• Understand the concepts of action and reaction forces
• Identify examples of Newton's Third Law in everyday life
• Explain how forces produce acceleration in systems like rockets and skaters

Learning Objectives

• Explain recoil and thrust using Newton’s third law (action-reaction forces).
• Predict how forces and accelerations relate when two objects interact through pushing or expelling matter.
• Describe how equal and opposite interaction forces can produce different accelerations due to different masses.+ Show more

Learning Objectives

• Explain how fitness relates to survival and reproduction in a particular environment
• Describe how environmental conditions can change selection pressures and favor different traits
• Connect fitness to heritable variation and how populations can change over time

Learning Objectives

• Understand what traits contribute to an organism's survival
• Learn how environment influences which traits are advantageous
• Explore the concept of fitness in different habitats+ Show more

Learning Objectives

• Identify independent, dependent, and controlled (constant) variables in a science investigation.
• Select appropriate control groups and explain why they are necessary for valid comparisons.
• Describe how replication, randomization, and blocking reduce confounding influences.+ Show more

Learning Objectives

• Understand the concepts of recoil and thrust
• Identify action-reaction forces in everyday situations
• Describe how different objects react to forces based on their mass+ Show more

Learning Objectives

• Understand how action-reaction forces operate in recoil and thrust scenarios.
• Describe how different masses affect acceleration during interactions.
• Explain the principle of conservation of momentum in recoil and thrust systems.+ Show more

Learning Objectives

• Explain recoil and thrust using Newton’s third law (action–reaction forces).
• Compare how equal and opposite interaction forces can produce different accelerations because of different masses.
• Use ideas about momentum change to describe motion during interactions such as rockets, skateboarders, and skaters.

Learning Objectives

• Explain recoil and thrust using Newton’s third law (action–reaction force pairs).
• Identify the correct force pair and the opposite directions of forces in a two-object interaction.
• Relate equal-and-opposite forces to different accelerations using mass.

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.