Question

"A scientist is testing how a chemical affects the number of apples produced by an orchard. One orchard is sprayed with the chemical and a second orchard does not receive the chemical. In the fall, the number of apples harvested from each orchard is counted. The orchard sprayed WITH chemicals produced 60 apples per tree. The orchard WITHOUT chemicals produced 40 apples per tree. Write a hypothesis this scientist is testing.What is the experimental group? What is the dependent variable? (Measured) What is the independent variable?

Answer 1

A scientist's hypothesis could be that a chemical increases apple production, and the experimental group is the orchard treated with the chemical. The dependent variable is the apple yield per tree, while the independent variable is the application of the chemical.

Step-by-step explanation:

The hypothesis the scientist is testing might be: The application of a chemical increases the number of apples produced by an apple orchard. The experimental group in this scenario is the orchard sprayed with the chemical, as it is receiving the treatment being tested. The dependent variable, which is the outcome being measured, is the number of apples produced per tree. The independent variable is the presence or absence of the chemical, as this is the factor the scientist is manipulating to observe its effect on apple production.