Grade 3 Science
Living Systems: Understandings of the living world, Earth, and space are deepened by investigating natural systems and their interactions.
Plants and animals use their senses to respond to sensory stimuli, including
water
food
temperature
light
Grade 4 Science
Living Systems: Understandings of the living world, Earth, and space are deepened by investigating natural systems and their interactions.
Organisms are living things that respond to stimuli and include plants, humans, and other animals.
Organisms can be classified in various ways, including by
appearance
habitat
structures
Structures, including body parts, are features of organisms that serve a purpose or function.
Organisms have external structures that can vary; e.g.,
plants may have roots, stems, leaves, flowers, fruit, or other structures
Plants can detect sensory stimuli, such as light, gravity, temperature, and touch, which help them grow and survive.
Grade 5 Science
Earth Systems: Understandings of the living world, Earth, and space are deepened by investigating natural systems and their interactions.
Climate and weather events may influence agricultural practices by affecting components such as
crop type
crop production
animal population
soil quality
water access
Conservation agriculture is a sustainable practice that responds to local climate and weather events.
Conservation agriculture practices are adapted to the requirements of plants and animals farmed.
Agricultural practices involve monitoring and responding to climate or weather events such as
drought
flooding
fires
windstorms
Conservation agriculture practices include
minimizing soil disturbance
maintaining soil cover
using water efficiently
using sustainable harvesting practices
Sustainable harvesting practices support the maintenance of stable plant or animal populations over time and include
crop rotation
companion planting
limiting hunting and trapping
considering future harvests
Living Systems: Understandings of the living world, Earth, and space are deepened by investigating natural systems and their interactions.
Plant transport systems include xylem and phloem.
Xylem and phloem in plants perform similar functions to the circulatory system in animals.
Xylem transports water and nutrients from the roots to the rest of the plant.
Phloem transports sugars from the leaves to the rest of the plant.
Grade 6 Science
Living Systems: Understandings of the living world, Earth, and space are deepened by investigating natural systems and their interactions.
Plants carry out the process of photosynthesis, which uses light, water, and carbon dioxide to produce oxygen and food in the form of sugar (glucose).
Plants and animals use food produced during photosynthesis to perform vital biological processes.
Plants and animals use the oxygen that is released during photosynthesis for respiration.
Chlorophyll in plants collects light needed for photosynthesis.
The release of oxygen and the presence of starch indicate that a plant has been photosynthesizing.
Sugar produced by plants through photosynthesis is often stored as starch.
Plants play a variety of roles in an ecosystem, such as
photosynthesizing
cleaning and filtering water
reducing soil erosion
providing food and shelter for animals
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