orange
Soy bean oil
Performance event practice 1:
Ethylene is a plant hormone that causes fruit to mature. Judy thinks that the more ethylene an
apple has, the faster it will mature. The data below concerns the amount of time it takes for fruit to
mature from the time of the first application of ethylene by spraying a field of trees.
Questions:
1. Write an If/ Then hypothesis for this experiment.
2. What is the independent variable?
3. What is the dependent variable?
4. What factors must remain constant (give at least 3)?
Amount of ethylene in ml/m²
10
15
20
25
30
35
Wine sap Apples:
Days to Maturity
14
12
11
10
8
8
Golden Apples:
Days to Maturity
14
12
9
7
7
7
Gala Apples:
Days to Maturity
15
13
10
9
8
7