1. GRAPHING PRACTICE
1. Jordan planted seedlings & measured the average height the plants grew over several days.
a. Draw a line graph to illustrate Jordan’s data. Make sure to include labels & a title.
PLANT HEIGHT
PLANT GROWTH
DAY
HEIGHT
(cm) 2 5 4 11 6 12 8 29 10 34 37 40
HEIGHT (cm) 30 20 10
b. Did the plants grow at the same rate every day? How can you tell by looking at the graph? 2 4 6 8 10 12
NO. THE GRAPH IS NOT A STRAIGHT LINE
DAYS
c. Approximately how tall were the plants on day 5?
d. What seems to be happening to the rate of growth
toward the end of the experiment?
e. How tall do you predict the plants will be on day 14?
ABOUT 11.5 CM
IT IS STARTING TO SLOW DOWN.
BETWEEN 39-40

2. a. Draw a double-line graph to illustrate
2. Amy did an experiment on temperature & plant growth. She compared the height of two identical plants placed in locations with different temperatures over a period of days.
AMY’S PLANTS
a. Draw a double-line graph to illustrate
Amy’s results. Use different colors
for each temperature line. Make a
Key to identify each line. 20
AMY’S PLANTS 15
DAY
Height (cm)
@ 200C
@ 260C 2 1 3 4 7 5 10 14 9 17
HEIGHT (cm) 10 5 1 2 3 4 5
DAYS

3. b. What is the scientific question Amy is trying to answer?
c. What is the manipulated variable in Amy’s experiment?
d. What is the responding variable?
e. Name 3 experimental factors that Amy should have kept constant during her experiment:
Answer: She should use the same
f. If you were Amy, what conclusion would you reach about the relationship of temperature &
plant growth?
HOW DOES TEMPERATURE AFFECT GROWTH?
THE TEMPERATURE
HOW THE PLANT GREW.
PLANT, SOIL TYPE,AMOUNT OF SUN, AMOUNT OF WATER.
PLANTS GROW BETTER IN WARMER LOCATIONS.