Transcript Grow Plants

Grow Plants
Follow care directions.
Make daily observations record in data
table.
Do you want to photograph? (with your
phones!)
Determine wet mass of 10 plants after
7 days
Design and record in data table.
Determining Mass
Carefully remove 10 plants from soil.
Carefully wash soil from roots – GET
ALL ROOTS
Record observations of overall size and
appearance of each plant. (Data Table)
Gently blot each plant dry.
Mass each plant in grams.
Remember to tare weighing boat.
Place in drying oven for 48 hours
@100oC.
Determine dry mass of each plant.
Record in data table.
Statistically analyze the dry mass data.
(mean, range, standard deviation,
standard error)
Record in data table.
Determine:
Percent biomass per plants
Energy (g biomass x 4.35 kcal)/10 plants
Net primary productivity per day per plant
Record in Data Table
Seven-Day-Old Fast Plants
Age
Wet
Dry
Percent Energy
mass/10 mass/10 biomass
plants
plants
Net primary
productivity
per day
per plant
Repeat all steps for the next 7 days
Data table at day 14.
Graph NPP from days 7 & 14. Include
measurements from both groups.
Answer all questions in step 5 & 6.