Science Worksheets

Learning Objectives

• Explain how DNA sequence similarity can indicate relatedness.
• Describe what DNA mutations contribute to differences among sequences.
• Interpret simple ideas behind molecular markers and genetic variation in populations.+ Show more

Learning Objectives

• Define biogeochemical cycles and key related terms used to describe nutrient movement.
• Explain cause-and-effect relationships among pools, flows, and processes in ecosystems.
• Summarize how human activities can alter cycle rates and influence productivity.

Learning Objectives

• Summarize the main purpose of photosynthesis.
• Use key vocabulary (chloroplast, light reactions, photons, ATP, NADPH, Calvin cycle, carbon dioxide, sugars).
• Explain how light energy becomes chemical energy stored in organic molecules.

Learning Objectives

• Identify the key components of a phylogenetic tree, including taxa, branches, common ancestry, and clades
• Summarize how branching patterns support hypotheses about evolutionary relationships
• Distinguish rooted versus unrooted trees and explain what each form suggests+ Show more

Learning Objectives

• Explain how the cell membrane is selectively permeable.
• Describe how the phospholipid bilayer forms a barrier to many substances.
• Identify roles of membrane components in transport and recognition.

Learning Objectives

• Define an ecosystem using living and nonliving components
• Distinguish energy flow from nutrient cycling in ecosystems
• Explain the role of primary productivity in food chains

Learning Objectives

• Identify producers in a trophic system and explain where energy enters the system
• Describe the role of consumers and decomposers in energy flow using trophic-level vocabulary

Learning Objectives

• Explain what a phylogenetic tree represents about evolutionary relationships.
• Interpret how branching patterns relate to common ancestry and divergence.
• Identify how shared derived traits and molecular data support a classification hypothesis.

Learning Objectives

• Identify cause-and-effect relationships in a passage about water use.
• Explain how conservation actions can reduce environmental harm.
• Use evidence from the text to describe stewardship choices at home and in communities.

Learning Objectives

• Identify key details of aerobic respiration and where it occurs in cells
• Compare oxygen’s role in aerobic respiration with energy outcomes
• Explain how cellular location relates to energy production

Learning Objectives

• Identify how mutation, recombination, and gene flow create genetic variation.
• Explain why genetic variation can be inherited across generations.

Learning Objectives

• Describe what adenosine triphosphate (ATP) is and what it does in cells
• Explain why ATP is considered an energy currency
• Summarize how ATP can release energy to power cellular processes

Learning Objectives

• Identify main ideas in an informational text about the carbon cycle
• Use key vocabulary (photosynthesis, respiration, decomposition, primary production) accurately
• Explain how carbon moves between living things and Earth systems

Learning Objectives

• Identify the three main claims of cell theory
• Distinguish unicellular and multicellular organization
• Explain how microscopy supports the idea that cells exist in all living things+ Show more

Learning Objectives

• Describe the sequence of glycolysis steps in terms of inputs and outputs
• Explain how glycolysis generates ATP and produces pyruvate
• Connect energy changes in glycolysis to later respiration stages

Learning Objectives

• Identify the major stages of meiosis and their outcomes.
• Explain how meiosis halves chromosome number to produce haploid gametes.
• Describe how recombination and independent assortment create genetic variation.

Learning Objectives

• Summarize how cells, tissues, organs, and organ systems relate in multicellular organisms
• Explain specialization using differentiation and regulated gene expression
• Describe how specialized cells coordinate to support homeostasis

Learning Objectives

• Explain how the nephron begins renal regulation through filtration
• Identify key nephron structures involved in filtration and early fluid processing
• Use vocabulary from the passage to describe how water and solutes can be reabsorbed after filtration+ Show more

Learning Objectives

• Explain why cells switch from aerobic respiration to fermentation when oxygen is scarce.
• Describe how fermentation pathways regenerate NAD+ so glycolysis can continue.
• Compare lactic acid fermentation and alcoholic fermentation in terms of end products and energy yield.

Learning Objectives

• Identify the main idea of a conservation strategies text about protected areas and connectivity corridors.
• Explain how connectivity supports gene flow and population persistence.
• Use key vocabulary from the passage to answer comprehension questions.

Learning Objectives

• Explain how enzyme activity changes the speed of metabolic pathways.
• Identify how allosteric regulation and feedback inhibition affect pathway flux.
• Describe how covalent modification can switch enzyme activity in response to cellular conditions.

Learning Objectives

• Identify the main idea of how molecular sequence similarity supports inferences about evolutionary relatedness.
• Describe how conserved genes and sequence comparisons provide supporting details for phylogenetic reasoning.
• Recognize that mutations can accumulate and that shared similarities can indicate common ancestry.

Learning Objectives

• Explain how fossils form and what conditions preserve remains
• Identify key details that connect fossils to evidence of evolutionary change
• Use fossil and rock information to interpret relative time in Earth's history

Learning Objectives

• Identify the main idea of a text about carbon cycling.
• Define key terms related to carbon reservoirs and processes.
• Explain how carbon moves between the atmosphere and living organisms.

Learning Objectives

• Identify structural clues in an anatomical text that indicate shared ancestry
• Explain how homologous structures support evolutionary relationships
• Distinguish homologous features from analogous features using evidence from the text

Learning Objectives

• Explain how heritable variation can change survival and reproduction under specific environmental conditions
• Identify cause-and-effect relationships in a science passage about natural selection
• Use evidence from a passage to determine whether statements about natural selection are true or false+ Show more

Learning Objectives

• Identify the main idea of a passage about genetic drift
• Use key vocabulary related to allele frequency and chance events
• Explain how bottleneck and founder effects can change genetic variation+ Show more

Learning Objectives

• Explain how genotype maps to phenotype in incomplete dominance.
• Use allele and genotype information to predict intermediate phenotypes.
• Distinguish incomplete dominance from complete dominance using evidence from phenotypes.

Learning Objectives

• Identify the main purpose of the Calvin cycle in photosynthesis.
• Describe how CO2 is converted into carbohydrate building blocks using energy and reducing power.
• Explain the roles of RuBisCO, ATP, and NADPH in the cycle.

Learning Objectives

• Identify major ecosystem components and describe their roles.
• Explain how energy flow and matter cycling connect ecosystem parts.
• Use ecosystem vocabulary to answer science questions.

Learning Objectives

• Explain genetic drift as a random change in allele frequencies.
• Define key vocabulary: allele, allele frequency, and drift.
• Identify how chance events in small populations can alter genetic diversity.

Learning Objectives

• Summarize how energy enters ecosystems through sunlight and moves to producers
• Use key terms such as trophic level, producers, consumers, decomposers, and net primary productivity
• Explain why only part of energy becomes biomass at each stage

Learning Objectives

• Explain how competition shapes resource use and population sizes
• Describe how the niche concept reduces conflict between similar species
• Predict how resource limitation can change outcomes of species coexistence

Learning Objectives

• Identify contact forces and non-contact forces in everyday situations.
• Describe how a net force can change an object’s motion.
• Explain the role of friction in slowing or stopping moving objects.

Learning Objectives

• Identify the main idea of a passage about plant reproductive structures.
• Use key vocabulary words to explain how flowers and seeds help plants reproduce.

Learning Objectives

• Identify the main idea of how wetlands help manage water across a landscape
• Describe hydrological functions of wetlands using supporting details from the passage
• Explain how wetland water storage can reduce flooding after heavy rainfall

Learning Objectives

• Explain how Earth’s tilt changes the Sun’s apparent path across the sky.
• Describe how seasonal solar elevation at noon affects day length and sunlight intensity.
• Compare how latitude changes sunrise, sunset, and noon height for locations in Alberta.

Learning Objectives

• Explain how Earth’s rotation causes day and night for different locations.
• Identify cause-and-effect relationships in a science text about Earth and sunlight.
• Use accurate vocabulary to describe how the Sun’s light creates changes in what we observe.

Learning Objectives

• Identify whether a pattern shows a long-term trend or random variation
• Use descriptive statistics like averages to support a claim about change over time
• Explain one plausible environmental cause for a temperature pattern+ Show more

Learning Objectives

• Identify key ideas about friction and pressure differences in drag
• Distinguish between parasitic and induced drag using passage vocabulary
• Explain how design changes can reduce drag and affect required thrust

Learning Objectives

• Identify the main idea of a passage about kite flight performance.
• Use key details to explain how lift and drag affect glide behavior in kites.
• Describe how control responsiveness differs when wind direction changes.

Learning Objectives

• Explain how center of mass relates to center of pressure in static stability
• Describe how a design can help an object return to a steady attitude after a disturbance
• Use examples of payload placement and wind conditions to reason about stability

Learning Objectives

• Identify patterns in a time series and describe what they might mean
• Use evidence to make a cautious conclusion
• Recognize how uncertainty and alternative explanations affect interpretation

Learning Objectives

• Identify the independent variable in a simple science investigation
• Identify the dependent variable that changes as a result
• Recognize common confounding variables and explain why control matters

Learning Objectives

• Identify key details about how humans convert land in forest areas
• Summarize how habitat loss affects species and ecosystems
• Use evidence from a passage to explain cause-and-effect relationships in human impacts

Learning Objectives

• Explain how an Earth–Sun geometry model can predict apparent motion in the sky.
• Use cause-and-effect statements from a model to describe changes in sunrise, sunset, and day length.
• Identify how axial tilt and Earth’s orbit affect seasonal patterns seen from a specific latitude.

Learning Objectives

• Identify kinetic and potential energy in everyday situations.
• Explain how changes in height and speed affect mechanical energy.
• Use energy conservation ideas to reason about safer motion and loading.

Learning Objectives

• Summarize the main idea and key details about how roots help trees get water.
• Identify specific root jobs that support tree health.
• Explain how root traits and relationships help trees in different environments.