Scientific control

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/scientific-control

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. How big is Scientific control?Fundamental in biology, chemistry, medicine, psychology, agriculture, and engineering
2. What is the core principle?To isolate the independent variable by minimizing the influence of other factors
3. What is the methodological role?Enhances the reliability and validity of experimental results by providing a baseline
4. What is a control group in an experiment?A control group is a part of an experiment that does not receive the treatment being tested. It helps scientists see what happens without the new idea. The comparison shows the real effect of the treatment.
5. Why do scientists use control groups?Scientists use control groups to make sure their experiments are fair and reliable. They help keep other factors from changing the results. This way, the findings are trustworthy.

Independent Variable: The factor deliberately manipulated by researchers to observe its effect on the dependent variable.
Dependent Variable: The outcome or factor that is measured in an experiment to see if it is affected by the independent variable.
Randomized Controlled Trial (RCT): An experimental design where participants are randomly assigned to treatment or control groups.
Placebo Effect: A beneficial effect produced by a placebo drug or treatment, which cannot be attributed to the properties of the placebo itself.