In about 24 to 48 hours the seedlings will erupt through the soil, once the seeds have germinated. This means the seeds have absorbed water and have swollen to the point that the plant inside the seed can burst through the seed coat and begin to grow. The roots will grow downward to anchor the plant in the soil. The stem will grow upward toward the light source.The seed takes in The stem begins towater.It swells and grow upward. The rootsbursts open the seedcoat. extend downward.
Once there are seedlings visible in each of the 4 quad areas, students will need to thin the plants out so that there is one remaining plant in each section. If any section does not have a plant growing, a“donation,” may be transplanted into that section. Thinning involves loosening the soil with a toothpick around a plant that is to be moved. The plant will then gently be lifted out. Transplanting involves moving the plant to a new location to be planted.
Students will measure one of the 4 growing plants over a period of time. The measurements will be done in centimeters and graphed on a bar graph. Students will be able to see the progression of growth for that particular plant.
Students will make bee sticks which willbe used to pollinate their plant. They willuse one toothpick, glue and a freezedried honeybee. Each student will spreadglue on about ¼ inch length at the end oftheir toothpick. The honeybee will now beplaced on the glued area, so that the legsof the bee are closest to thetoothpick.They should be allowed to dryovernight. Once the bee sticks aremade, students will simulate pollinationby touching the bee to each of openBrassica flowers on their plant.
After the plants have been pollinated with bee sticks for several days, students will observe that the flowers will begin to change. Petals will begin to drop off. They will begin to see the emergence of seed pods in the center of each flower. Later, these pods will be harvested. When broken open, the pods will reveal the same type of seed which the students had planted-The Cycle of Seed to Seed.
Flickr,Honeybee photo, http://www.flickr.com/photos/encinoman/758056531/Kathy Schrock Guide for Educators, clip art of seed growthhttp://school.discoveryeducation.com/schrockguide/Power point clip art, bar graph, girl at computer, bookMotivation Station, bean in a pothttp://school.discoveryeducation.com/clipart/( hyperlink)Discovery Education, Streaming video, Observing Seed Pods (hyperlink)http://player.discoveryeducation.com/index.cfm?guidAssetId=EB73998A-7AC0-4D68-A7CE-8E2DA3F5D2D5&blnFromSearch=1&productcode=US (hyperlink)Photo of a Brassica Flowering Plant,coverhttp://www.maltawildplants.com/CRUC/Pics/BRSRA/BRSRA-Brassica_rapa_subsp_sylvestris_t.jpgPhoto of Wisconsin Fast Plants in a quad planterhttp://www.carolina.com/images/en_US//local/products/detail/158884_lp.jpg
Seed pod photos http://images.google.com Cute flower blinking http://www.professionalanimations.com
Life Science Strand 2 Identify the ways in which an organism’s habitat provides for its basic needs (plants need air,water,nutrients and light) Identify the structures in plants (leaves,roots,flowers,stem)that are responsible for food production,support,water transport,reproduction,growthand protection) Recognize plant behaviors,such as the way seedlings stems grow toward light and their roots grow downward in response to gravity Life Science Strand 4 Describe different ways in which a problem can be represented, e.g.sketches,diagrams,graphic organizers and lists Math Strand 5 Collect and organize data using observations,measurements,surveys or experiments, and identify appropriate ways to display the data
A particular slide catching your eye?
Clipping is a handy way to collect important slides you want to go back to later.