A
Handful of Seeds
(A different and
very visible way for students or groups to compare rates of germination.)
Objective:
Students will compare and contrast the germination rate of different types
of bean seeds.
You'll Need:
Clear plastic glove (one per student or group)
Cotton balls
Seedsfive different varieties of beans (pinto, lima, lentil,
soybean, black-eyed pea, etc.)
Duct tape or wide masking tape
Fine point permanent marker
Plant light or windowsill (indirect light)
Hand magnifiers
Procedure:
1. Distribute seed varieties to students. Identify seeds and observe with
hand magnifiers.
2. Ask students to predict which type of bean might germinate first and
why. Record predictions.
3. Moisten cotton balls and push one into each finger tip of the plastic
glove.
4. Place one bean seed on each moistened cotton ball (a different variety
in each finger).
5. Label each finger of the glove with the variety of the bean seed it
contains.
6. Gently press glove to force out air. Seal the opening with duct tape
or wide masking tape,.
7. Label the taped end with the date. Place in a well-lit location out
of direct sunlight.
8. Observe for signs of germination and record data. Have students illustrate
changes.
Evaluation:
Which variety of bean germinated first? How do you know?
How long did it take for the first seed to germinate? The last seed?
If the activity were repeated, do you think the results would be the same?
Why or why not?
Illustrate your "handful of seeds" and write five sentence describing
the germinating seeds.
|