Seeds are small packets that contain everything necessary for germination. Once the seed germinates and breaks through the soil surface, the machinery is in place to collect sunlight and convert carbon dioxide into food for the plant to allow it to grow.
In this unit, students dissect a seed and determine the conditions necessary for a seed to germinate from seed to plant.
Dissect a seed for elementary students
Students soak seeds then dissect with a plastic knife to see what is inside a seed. They create a journal to track the progression from seed to plant. (elementary)
Some plants can reproduce asexually, or by producing clones. Many other plants produce seeds through sexual reproduction. For these plants, survival depends on germination of seeds and viability of young plants. If a seed germinates in the wrong place or at the wrong time – then life is over for that individual. In this lab, student groups will design and conduct experiments on seed germination to explore the effects of abiotic and biotic factors on plant survival. Plants require certain factors to grow successfully. They need abiotic factors such as water, light, nutrients, a substrate to grow in, and often a suitable temperature. If these are not optimal for a plant, then its ability to germinate and grow can be reduced. They can also be affected by biotic factors such as the age of the seed, predation or mold growth.
Next gen standards
Science and engineering practices
Planning and carrying out investigations
Using mathematics and computational thinking
Obtaining, evaluating, and communicating information
Cause and effect
Systems and system models
Energy and matter
Disciplinary core ideas/content
ESS3C Human impacts on Earth systems
LS1A Structure and Function
LS1B Growth and development of organisms
LS1D Information processing
LS2C Ecosystem dynamics, functioning and resilience
How do biotic and abiotic factors affect populations? Go into the field and laboratory to determine the impact of aphid populations on soybeans, and experiment with aphid resistant genes (Rag genes) to determine their effectiveness against soybean aphids.
How do sterilization techniques affect our ability to preserve and culture organisms? In vitro collecting (IVC) is the process of starting plant tissue cultures with minimal disturbance to the plants when viable seeds are not available. Become the field researcher and learn …
How might soymilk, and other types of milk, help ensure food security? Investigate various milk sources and their composition through core disciplines of Science, Math, Social Studies and Language Arts to discover the availability of milk types within multiple cultures that serve …
In 2016 there were several natural disasters in the United States. These disasters include hurricanes, blizzards, and floods. The United States Blizzard (January 2016) dumped heavy snow from the Mid-Atlantic to the …