Unit 3 — November: Plant Science and Soil Management
Description
Students explore plant structure and function, beginning with an interactive game on pollination and investigating impacts of pollinator decline. Plant vasculature is examined through carnation dye experiments and microscopic observation of stem cross-sections. Students dissect seeds, conduct experiments on dormancy requirements, and test soil composition effects on plant growth. Investigations include nutrient cycling with nitrogen, phosphorus, and potassium experiments, pH buffering in soils, and climate impacts through snowpack studies. The unit includes plant cell modeling using craft materials and microscopic observation, transpiration experiments weighing plants before and after sun exposure, and photosynthesis exploration through light wavelength and intensity experiments using colored cellophane.
Essential Questions
- What do plants need to survive and grow?
- How do plants transport water and nutrients?
- What role do pollinators play in plant reproduction?
- How do soil conditions affect plant growth?
- What factors influence photosynthesis?
Learning Objectives
- Identify plant parts and their functions
- Understand pollination and its ecological importance
- Describe plant vasculature and capillary action
- Explain seed dormancy and germination requirements
- Analyze soil composition and nutrient content
- Calculate and apply proper fertilizer amounts
- Adjust soil pH for optimal plant growth
- Measure plant transpiration rates
- Design experiments on light wavelength and plant growth
Supplemental Resources
- Colored pencils and markers for plant cell and soil layer diagrams
- Construction paper for creating models and visual aids
- Poster board for documenting experimental results
- Sticky notes for organizing information during soil investigations
- Lined journals for recording daily observations and hypotheses
Engineering, Technology, and Applications of Science
Crosscutting Concepts
Disciplinary Core Ideas
Science and Engineering Practices
Students engage in reading, writing, speaking, and listening tasks throughout all units. They conduct research on agricultural topics using informational texts, write blog posts and project reports, present findings to peers, and engage in collaborative discussions. Students summarize information from diverse media, quote from sources to support claims, and produce informative and opinion writing aligned to agricultural themes such as food systems, animal science, and natural resource management.
Students apply mathematical concepts across all units. They use measurement and unit conversions when testing water chemistry, calculating feed amounts, and designing chicken coops. Students collect and graph data from macroinvertebrate studies and plant experiments, calculate percentages for hatch rates and cost analysis, use area and volume formulas when designing agricultural structures, and apply operations with fractions and decimals in food science and agribusiness contexts.
Students apply scientific practices throughout the curriculum by conducting experiments, collecting and analyzing data, developing models, and constructing explanations. Topics including plant biology, animal systems, water chemistry, genetics, ecology, and food chemistry directly align with life science and earth science disciplinary core ideas. Students engage in engineering design when creating hydroponics systems and chicken coop structures, and they use crosscutting concepts such as cause and effect, systems and system models, and structure and function.
Career readiness, financial literacy, and 21st century life skills are embedded throughout all units. Students explore careers in agriculture, food science, natural resource management, veterinary science, and agribusiness. They develop personal and entrepreneurial financial skills through agribusiness simulations, plant sales, and grocery cost analysis. Students use digital tools for research, collaboration, and data visualization, and they practice critical thinking, creativity, and communication in team-based agricultural challenges.
Formative Assessments
- Observations during pollination game and plant dissections
- Journals documenting seed germination and soil experiments
- Pair and share discussions on vasculature demonstrations
- Self-evaluations of experimental design
- Group work on pH buffering challenges
Summative Assessment
Projects on plant cell models and light experiments, portfolio updates with experimental data, blog posts analyzing results and drawing conclusions
Benchmark Assessment
— not configured —
Alternative Assessment
Students may demonstrate understanding of plant structures and functions through labeled diagrams with teacher support, oral explanations of experimental results in place of written journal entries, or simplified data recording sheets with visual supports such as pictures or symbols. Hands-on tasks like seed dissection and soil testing may be completed with reduced scope, focusing on one or two key steps, or with direct adult assistance as needed.
IEP (Individualized Education Program)
During hands-on investigations such as seed dissections, soil testing, and plant observations, provide visual organizers that pre-label plant structures and experimental steps so students can focus on understanding function rather than managing open-ended recording demands. Allow students to document journal entries and experimental findings through oral explanation, labeled diagrams, or dictation to reduce written output barriers while still demonstrating conceptual understanding. Vocabulary related to plant science and soil chemistry should be pre-taught and displayed with visual supports throughout the unit, and complex multi-step experiments should be chunked into clearly numbered stages with a model of the expected outcome visible at each station.
Section 504
Ensure students have access to extended time during longer investigations such as soil composition testing or transpiration measurement tasks, and provide a printed copy of experimental directions with key terms highlighted so students are not reliant solely on verbal instruction. Preferential placement near demonstration areas during vasculature and photosynthesis activities supports focus and reduces distraction during critical observation moments.
ELL / MLL
Build vocabulary for plant structures, soil components, and nutrient functions through visual word walls, labeled diagrams, and real objects or specimens students can handle before academic language is introduced. Directions for multi-step experiments should be simplified and paired with visual step-by-step cues, and students should be encouraged to record initial observations or journal reflections in their home language before transitioning to English. Connecting unit content — such as pollination, soil health, or seed saving — to agricultural practices familiar from students' home cultures can strengthen comprehension and engagement.
At Risk (RTI)
Provide entry points into investigations by beginning with the most concrete and observable elements first, such as examining a real seed or comparing soil textures by touch, before introducing explanatory concepts like dormancy or nutrient cycling. Reduce the complexity of data recording expectations during experiments so students can participate meaningfully in the scientific process without being overwhelmed by documentation requirements, and use frequent brief check-ins at the start of each activity to activate prior knowledge and confirm understanding of the task before students work independently. Connecting plant growth concepts to familiar real-world contexts, such as food gardens or seasonal changes students have observed, can make abstract content more accessible.
Gifted & Talented
Invite students to extend their experimental design work by independently developing and testing variables beyond those introduced in class — for example, investigating how combinations of soil pH and nutrient levels interact to affect germination rates, or designing a follow-up light experiment that accounts for additional wavelength or duration variables. Students may also explore the ecological and agricultural implications of pollinator decline or snowpack shifts at a systems level, drawing connections between plant science, climate data, and food production in ways that require analysis and synthesis. Opportunities to share findings through the unit blog or portfolio in formats that reflect genuine scientific communication — rather than replication of teacher-led procedures — support depth over breadth.