Grade 8 Science Worksheets

Learning Objectives

• Use conservation of atoms to predict which substances form in a chemical reaction
• Write and interpret balanced chemical equations to determine product identities
• Convert between mass and moles to estimate relative amounts and yields

Learning Objectives

• Understand how to predict reaction products based on reactant identities and reaction patterns.
• Apply conservation of atoms and balanced equations to determine possible formulas and quantities.
• Use molar calculations to convert between mass and moles and estimate reaction yields.+ Show more

Learning Objectives

• Explain how atomic bonding and molecular structure relate to observable substance properties.
• Use particle models to predict patterns in melting/boiling state, solubility, and reactivity trends.
• Differentiate properties of polar and nonpolar substances and of extended structures such as polymers and crystals.+ Show more

Learning Objectives

• Explain how mutations change DNA and how those changes can affect proteins and traits
• Differentiate harmful, neutral, and potentially beneficial mutation effects on survival
• Describe how environmental conditions and natural selection can change allele frequencies over generations

Learning Objectives

• Predict likely chemical products by using reactant identities and reaction patterns, then checking using conservation of atoms.
• Use balanced equations to determine product formulas and relative amounts (stoichiometric ratios).
• Convert between mass and moles to compare reactant quantities and estimate yields.

Learning Objectives

• Understand how to predict products of chemical reactions based on reactant identities and reaction patterns.
• Apply conservation of atoms to balance chemical equations and determine possible products.
• Use stoichiometry to convert between masses and moles for estimating reaction yields.+ Show more

Learning Objectives

• Explain conservation of energy as an accounting framework for energy transfers and transformations in a system.
• Identify how mechanical energy can decrease while thermal and other energy forms increase due to friction.
• Use energy-form descriptions to predict energy changes for real-world situations such as sliding objects or slowing vehicles.

Learning Objectives

• Identify different types of genetic mutations
• Understand the causes of mutations
• Recognize how mutations impact organisms and evolution+ Show more

Learning Objectives

• Understand the principle that energy is neither created nor destroyed; it is transferred and transformed.
• Identify different forms of energy, such as kinetic, potential, thermal, and mechanical.
• Explain how energy conservation applies in various physical situations, including friction and motion.+ Show more

Learning Objectives

• Explain the law of conservation of energy using the idea that energy is transferred and transformed rather than created or destroyed
• Identify common energy transfers between mechanical energy, thermal energy, sound, and other forms
• Use energy-conservation reasoning to account for why moving objects slow down or stop

Learning Objectives

• Understand how to predict reaction products based on reactant identities and reaction patterns.
• Apply conservation of atoms to determine possible formulas and quantities of products.
• Balance chemical equations to ensure atom conservation and guide predictions.+ Show more

Learning Objectives

• Explain conservation of energy using the idea that energy is transferred and transformed in physical processes.
• Identify how mechanical energy can change form when friction or other forces act.
• Use energy-conversion reasoning to predict what happens to kinetic energy as motion slows.

Learning Objectives

• Explain how particle models connect the structure of atoms and molecules to observable properties such as state of matter.
• Compare polar and nonpolar molecular arrangements and predict how they affect interactions with water (solubility and separation).
• Describe how extended structures (polymers and crystalline solids) differ in properties based on particle connections and energy movement.

Learning Objectives

• Explain the conservation of energy as an accounting framework for energy changing forms during physical processes.
• Describe how kinetic energy can transform into thermal energy due to friction.
• Use evidence to identify energy transfers and transformations in everyday situations.

Learning Objectives

• Explain how friction acts as a contact force that opposes relative motion between surfaces
• Describe how surface type and normal force affect the size of friction and the rate of slowing
• Connect friction effects to real-world examples such as bicycle brakes and sleds

Learning Objectives

• Understand that energy cannot be created or destroyed, only transferred or transformed.
• Identify different forms of energy involved in physical processes.
• Explain how energy conservation applies in real-world scenarios.

Learning Objectives

• Understand how to identify reactants in a chemical reaction
• Predict possible products based on reaction types and patterns
• Use conservation of atoms to determine plausible products+ Show more

Learning Objectives

• Understand key concepts related to Science
• Apply knowledge through practice questions
• Demonstrate comprehension of the material

Learning Objectives

• Understand what mutations are and how they affect DNA
• Identify different types of mutations
• Explain the role of mutations in evolution and diversity+ Show more

Learning Objectives

• Explain how DNA mutations can change alleles and influence protein structure or function
• Distinguish between harmful, neutral, and beneficial mutation effects in different environments
• Describe how mutation rates and natural selection can increase trait diversity over generations

Learning Objectives

• Explain how friction is a contact force that opposes relative motion.
• Describe how surface texture and normal force affect friction and motion.
• Use evidence from real-world examples (brakes, sleds, floor materials) to predict friction effects.

Learning Objectives

• Identify and describe the main chemical reaction types: synthesis, decomposition, single displacement, double displacement, and combustion
• Explain how atoms reorganize during each reaction type using bond-making and bond-breaking patterns
• Predict likely products by matching a reaction description to its correct reaction type

Learning Objectives

• Identify and describe the main types of chemical reactions: synthesis, decomposition, single displacement, double displacement, and combustion.
• Understand characteristic bond-making and bond-breaking patterns in different reaction types.
• Recognize examples of each reaction type and predict possible products based on reaction patterns.+ Show more

Learning Objectives

• Identify and describe the main types of chemical reactions including synthesis, decomposition, single displacement, double displacement, and combustion.
• Understand the characteristic bond-making and bond-breaking patterns in different reaction categories.
• Recognize examples of each reaction type and predict products based on reaction patterns.+ Show more

Learning Objectives

• Identify major chemical reaction categories and describe how atoms reorganize in each.
• Use reaction patterns to predict possible products from given reactants.
• Distinguish between single and double displacement using characteristic bond changes.

Learning Objectives

• Explain how friction is a contact force that opposes relative motion
• Describe how surface type and normal force affect friction
• Connect friction to energy changes, especially thermal energy+ Show more

Learning Objectives

• Explain how mutations in DNA can change alleles and affect protein structure or function
• Identify common sources of mutations, including spontaneous copying errors and external factors like radiation
• Describe how natural selection can increase or decrease the frequency of traits caused by mutations

Learning Objectives

• Explain the law of conservation of energy in terms of energy transfer and transformation
• Identify where mechanical energy goes when friction slows an object
• Use energy accounting (before-and-after reasoning) to track energy changes in a system

Learning Objectives

• Understand how reaction patterns assist in predicting products.
• Learn the importance of balanced equations for conservation of atoms.
• Use mass and moles calculations to estimate reaction yields.+ Show more

Learning Objectives

• Understand the basic structure of molecules and how atoms connect.
• Identify different types of molecules based on their structure and polarity.
• Describe how molecular arrangements influence observable properties like states of matter and solubility.+ Show more

Learning Objectives

• Describe the quantitative relationships between kinetic and potential energy, including dependence on mass, velocity, and position.
• Interpret graphical displays relating kinetic energy to mass and the square of velocity.
• Analyze energy exchanges in systems such as pendulums and roller coasters, emphasizing conservation principles.+ Show more

Learning Objectives

• Understand the quantitative relationship between kinetic energy and other variables such as mass and speed.
• Interpret graphical displays relating kinetic energy to mass and the square of speed.
• Analyze energy interchange in systems like pendulums and roller-coasters.+ Show more

Learning Objectives

• Understand the quantitative relationships between kinetic and potential energy.
• Interpret graphical displays relating kinetic energy to mass and speed squared.
• Analyze energy interchange in systems such as pendulums and roller coasters.+ Show more

Learning Objectives

• Understand the quantitative relationships between kinetic energy, potential energy, mass, and speed.
• Interpret graphical displays relating kinetic energy to mass and the square of speed.
• Analyze energy interchange in systems such as pendulums and roller-coasters.+ Show more

Learning Objectives

• Understand the concept of kinetic energy and its dependence on mass and speed.
• Interpret graphs relating kinetic energy to mass and the square of speed.
• Analyze the energy interchange in systems like pendulums and roller coasters.+ Show more

Learning Objectives

• Identify different forms of energy such as kinetic and potential energy.
• Understand how energy depends on mass, speed, and position.
• Interpret graphs showing relationships between kinetic energy and variables like mass and speed.+ Show more

Learning Objectives

• Explain how kinetic energy depends on mass and speed.
• Interpret graphs relating kinetic energy to mass and speed squared.
• Explain how gravitational potential energy depends on mass and height.+ Show more

Learning Objectives

• Understand the concepts of kinetic and potential energy.
• Learn how energy depends on mass, speed, and position.
• Interpret graphs showing relationships between energy and other variables.+ Show more

Learning Objectives

• Use quantitative relationships to explain how kinetic energy depends on mass and speed.
• Interpret graphs that show how kinetic energy changes with mass and with the square of speed.
• Analyze energy transfers between kinetic and potential energy in models such as pendulums and roller coasters.+ Show more

Learning Objectives

• Understand how kinetic and potential energy depend on mass, speed, and position.
• Interpret graphs relating kinetic energy to mass and speed squared.
• Analyze energy interchange in systems like pendulums and roller-coasters.+ Show more

Learning Objectives

• Describe how kinetic energy depends on mass and speed and how potential energy depends on position.
• Interpret graphs that show kinetic energy as a function of mass and as a function of the square of speed.
• Explain energy transfer and conservation between kinetic and potential energy, including the role of friction.

Learning Objectives

• Describe the relationship between kinetic energy, potential energy, and their dependence on mass, speed, and position.
• Interpret graphs relating kinetic energy to mass and to the square of speed.
• Analyze energy interchange in systems like pendulums and roller coasters.+ Show more

Learning Objectives

• Understand the concepts of kinetic and potential energy.
• Identify how mass, speed, and position influence energy.
• Interpret graphical relationships between energy and other factors.+ Show more

Learning Objectives

• Explain how mass and speed affect kinetic energy
• Interpret the square relationship between speed and kinetic energy
• Describe how mass and height affect potential energy+ Show more

Learning Objectives

• Understand the quantitative relationships between kinetic and potential energy and how they depend on mass, speed, and position.
• Interpret graphical displays relating kinetic energy to mass and the square of speed.
• Analyze energy interchange in systems such as pendulums and roller-coasters.+ Show more

Learning Objectives

• Understand how kinetic and potential energy depend on mass, speed, and position.
• Interpret graphs relating kinetic energy to mass and squared speed.
• Analyze energy interchange in systems like pendulums and roller coasters.+ Show more

Learning Objectives

• Understand how kinetic and potential energy depend on mass, speed, and position.
• Interpret graphs relating kinetic energy to mass and to the square of speed.
• Analyze energy transfer in systems such as pendulums and roller coasters.+ Show more

Learning Objectives

• Understand how kinetic and potential energy depend on mass, speed, and position.
• Interpret graphs relating kinetic energy to mass and the square of speed.
• Analyze energy transfer and conservation in systems like pendulums and roller-coasters.+ Show more