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.