TStrand:Living Things

Lesson: Germination

opic:
 
AiAim/Objectivesim/Objm/Objectives

1. To investigate the conditions necessary for germination

2. To show that a stem conducts water

3. To give each child the opportunity to perform a specific experiment and observe what happens over a three-week period

4. To record experiments and findings in science copies

 

 
MMaterials Needed aterials Needed

Digital Camera
Four saucers
Cotton Wool
Seeds
Cooking Oil
Ink, Glass Jars

CoCContent/Methodologyontent/Mentent/Methodology

Introduction

Divide the class into five groups with a leader who takes responsibility for monitoring the experiments. Each group is given materials needed.

 

Development

The leaders place the cotton wool on saucers as follows:


Group 1 moistens the cotton wool with water
Group 2 soaks the cotton wool in oil
Group 3 places dry cotton wool on the saucer
Groups 4&5 fills glass jars with H2O.
Group 6 place dry cotton wool on saucer and put in school freezer box

The class is given instruction on the use of a digital camera and images are taken at each stage of the experiment. The groups place their seeds on pre-prepared saucers as outlined above.

Groups 4&5 mix water and blue dye in the glass jars and then place celery stalks into each jar.

Results are recorded in the students' science copies and a "Findings Chart" is completed.

 

 

Cotton Wool with H2O

 

Cotton Wool with Oil

Dry Cotton Wool

Cotton Wool in Freezer

Day 3

 

Shoots begin to appear

 

Nothing happens Seeds turn brown Cotton wool freezes

 

Day 5

 

Cress seeds begin to grow towards light

 

Nothing happens

 

 

Seeds die

 

 

Cotton wool and seeds freeze

 

Conclusion/Follow Up Activities

The experiments are placed on the nature table or in the freezer.
The children complete recording their findings in their science copies.
Equipment is returned to the computer room and the images printed.
The "Findings Chart" is filled in after 3,5,days.

 
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