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8 worksheets · 131 pages · Save $6.40 (20%) · prices shown inside the bundle

1. 01
   Grade 12 Science Inheritance Patterns Worksheet – General Standards (PDF)

   Grade 12 · Science · 17 Pages

   • Explain how chromosome segregation during meiosis leads to allele combinations in gametes and offspring.
   • Use Punnett-square reasoning to predict genotype and phenotype probabilities from parental alleles.
   • Differentiate dominance/recessiveness relationships between genotype and phenotype in inheritance patterns.

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2. 02
   Grade 12 Science | Matter and Energy Cycling Worksheet (PDF) Standard

   Grade 12 · Science · 17 Pages

   • Explain how energy flows one direction through ecosystems, largely entering as sunlight and leaving as heat.
   • Describe how matter cycles in the biosphere, focusing on carbon, nitrogen, and phosphorus movement among organisms and the environment.
   • Connect photosynthesis, cellular respiration, and decomposition to long-term ecosystem patterns and environmental change.
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3. 03
   Grade 12 Science – Ecosystem Interactions Worksheet (PDF) – General Standards

   Grade 12 · Science · 16 Pages

   • Explain how predation, competition, mutualism, and parasitism shape ecosystem structure.
   • Describe how energy moves through food webs across trophic levels.
   • Predict how changes in one population can affect other populations in a community.

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4. 04
   Grade 12 Science Worksheet | Evolutionary Change Mechanisms (PDF)

   Grade 12 · Science · 16 Pages

   • Explain how natural selection, genetic drift, and gene flow each change allele frequencies in populations
   • Analyze how drift, especially in small populations, can cause random fixation or loss of alleles
   • Evaluate how gene flow affects genetic relatedness and diversification among populations

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5. 05
   Grade 12 Science – Selection Evidence Worksheet (PDF) for Natural Selection

   Grade 12 · Science · 16 Pages

   • Explain how natural selection changes allele frequencies across generations using the idea of differential fitness.
   • Identify forms of evidence for selection, including observed trait change over time and geographic differences among populations.
   • Connect population-level observations (e.g., survival, reproduction, resistance) to heritable variation.
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6. 06
   Grade 12 Science – Sources of Genetic Variation Worksheet (PDF)

   Grade 12 · Science · 16 Pages

   • Explain how mutations, recombination, and sexual reproduction generate genetic variation within populations.
   • Describe how changes in allele frequencies can result from differential survival and reproduction.
   • Use genetic variation concepts to predict how populations may evolve over time.
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7. 07
   Grade 12 Science | Gene Expression Pathway Worksheet (PDF)

   Grade 12 · Science · 16 Pages

   • Explain how DNA is transcribed into RNA and translated into proteins during gene expression.
   • Describe how regulation at transcription and after transcription can change cell traits from the same genome.
   • Evaluate how timing and cellular context influence phenotype through gene expression pathways.
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8. 08
   Grade 12 Science Worksheet | Adaptive Fitness Tradeoffs (PDF)

   Grade 12 · Science · 17 Pages

   • Explain how adaptations can improve survival in one environment while causing costs in another (tradeoffs).
   • Describe how environmental factors such as resource availability and predation pressure shape fitness outcomes.
   • Use context (habitat conditions) to predict how trait frequencies (alleles/morphs) may change over time.
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