Biology - HOT Science Lab

Teacher
Exploring Flower Structure
NGSSS:
SC.912.L.14.7 Relate the structure of each of the major plant organs and tissues to
physiological processes. (AA)
Purpose of Lab/Activity:
Students will be able to list the parts of a flower
Students will be able to relate the structure of the flower parts to their function
The students will see the macroscopic and microscopic structures of a flower using both
a compound and stereo microscope
Prerequisite: Prior to this activity, the student should be able to
Identify parts of a plant and their function within the plant
Materials (individual or per group):
Stereo and compound microscopes
Brassica rapa or similar type of
flowers
Forceps
Scissors
index cards
pencil
tape
microscope slides
cover slips
water
disposable pipettes
rubber stopper
Procedures: Day of Activity:
Before
activity:
During
activity:
What the teacher will do:
c. Begin with a brief introduction of terms associated with a flower.
d. Have students read through the first part of the lesson and answer
introductory questions.
e. Ask students to describe the function of each part of the flower.
1. Why are some flowers colorful
2. Why do some flowers produce scent
3. What is the purpose of flowers
What the teacher will do:
d. As students perform the lab activity, allow students to use additional
resources to answer the introductory questions, such as the textbook and
the Internet.
1. Example: What are the five main parts of a flower Most flowers have
the same basic parts, though they are often arranged in different ways.
The five main parts of a flower are the sepals, petals, stamens, pistil,
and nectaries. (The sepals are the green leaf like structures at the base
of the petals that protect the developing flower. The petals are the
colored leaf-like structures within the sepals).
2. What are the functions of the basic parts of a flower
3. Why are some parts of the flower sticky
e. When students prepare to dissect the flower, make sure to show them how
to use the rubber stopper to secure and stabilize the flower.
Biology HSL Page 117
Curriculum and Instruction