Parts of the Experiment
This part of the experiment is an educated guess that can be formally tested.
What is a hypothesis?
The independent variable: Three wax palm trees are kept at different humidity levels inside of a greenhouse for 12 weeks. One tree is left outside in normal conditions. Height of the tree is measured once a week.
What is the humidity levels?
The part of the experiment that is measured/counted.
What is the dependent variable?
A tree produces acorns so saplings can be produced.
What is reproduction?
Biology is the study of this.
What is life and living things?
This is the question to be answered.
What is the problem?
The dependent variable: One tank of goldfish is fed the normal amount of food once a day, a second tank is fed twice a day, and a third tank four times a day during a six week study. The fish’s body fat is recorded daily.
What is the fish's body fat?
Parts of the experiment that must remain the same between experimental and control groups.
What are constants?
Your puppy went from 15 to 25 pounds in a month.
What is grow and change?
The group of the experiment where conditions are kept "normal".
What is the control group?
This is the phase of the experiment where data is collected and analyzed.
What is observation?
The independent variable: An experiment is done in which 3 different types of chocolate chips were used to make chocolate chip cookies for a goal of seeing which would sell the most cookies.
What is the type of chocolate chip?
The part of the experiment that you change to see if a difference is present.
What is the independent variable?
You are working out and your body sweats.
This is the body's ability to maintain a stable internal environment.
What is homeostasis?
This part of a scientific study includes what you do and how you are going to do it.
What is the experiment/procedure?
The dependent variable: You water some plants with 4 different types of water (salt water, regular water, sugar water and distilled water). After a two-week period, the height of the plants is measured.
What is the height of the plants?
This is the type of data that involves counts and measurements.
What is quantitative data?
What is cellular organization?
This characteristic of life is the most difficult to observe, as it takes place over many generations and within populations.
What is to evolve?
These are the two major parts of a conclusion.
What is reporting your results and accepting/rejecting your hypothesis?
Both independent and dependent variable: Taylor wanted to see if eating apples would help her do better on her classwork. The first day, she didn’t eat any apples. On day 2, she ate one apple; on day 3, she ate 2 apples; and on day 4, she ate 3 apples. Each day, she recorded the grades she got on her science work.
What is the apples eaten (IV) and the grades she received (DV)?
This type of data involves observations that can be made with your senses.
What is qualitative data?
Primates have developed opposable thumbs over long periods of time.
What is evolve?
If something does not have the five characteristics of life and never had all five, it is considered this.
What is nonliving?