Scientific Method Overview Quiz

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Questions and Answers

What term describes the degree of error of a measuring device?

Error bars

Theory

Law

Uncertainty (correct)

A hypothesis is the starting point for scientific investigation.

True

Identify the variable that can be controlled during experimentation.

Controlled variable

Data that describe physical characteristics involve the use of __________.

senses Signup and view all the answers

Match the following types of data with their examples:

Length of a cell in micrometers = Quantitative Change of scent of a chemical compound = Qualitative Stem length in centimeters of the plant = Quantitative Color of a liquid = Qualitative Signup and view all the answers

What is the organized process that scientists use to solve investigation problems?

Scientific method Signup and view all the answers

Qualitative data can be represented using numerical values.

False Signup and view all the answers

What methodology is used to test a hypothesis in an organized manner?

Scientific method Signup and view all the answers

What is the independent variable in the investigation related to recycled plastic?

Countries Signup and view all the answers

Brazil has the highest percentage of recycled plastic among the countries mentioned.

False Signup and view all the answers

What is the dependent variable in the investigation?

Percentage of recycled plastic in different countries Signup and view all the answers

The difference in the percentage of recycled plastics between South Korea and Mexico is ____%.

43 Signup and view all the answers

Match the following steps of the scientific method with their correct order:

A. Observations = 1. First step B. Questions = 2. Second step C. Hypothesis = 3. Third step D. Experimentation = 4. Fourth step E. Results = 5. Fifth step F. Conclusion = 6. Sixth step Signup and view all the answers

Which of the following is a controlled variable in the investigation on plant growth?

Type of plant Signup and view all the answers

In this investigation, the hours of sun exposure represent the dependent variable.

False Signup and view all the answers

List one controlled variable in the plant growth investigation.

Type of plant (or pots, days, months) Signup and view all the answers

Study Notes

Scientific Method

Steps in the scientific method include observations, questions, hypothesis, experimentation, results, and conclusions.

Variables

Independent variable: Factor being tested (e.g., hours of sunlight)
Dependent variable: Measured factor (e.g., plant growth)
Controlled variable: Factors kept the same (e.g., type of plant, pots)

Data Types

Qualitative data: Describes characteristics (e.g., color change)
Quantitative data: Uses numbers (e.g., length in cm, micrometers)

Scientific Investigation

A scientific investigation is a step-by-step process scientists use to solve problems.

Measuring Device Error

Error bars or uncertainty describe the degree of error in a measuring device.

Scientific Method (Specific Example)

An example investigation: measuring plant growth based on different sunlight exposure times.
Dependent variable: Growth of a plant in cm
Independent variable: 6 and 2 hours of sun per day
Controlled variable: Type of plant, pots, days, months

Recycled Plastic Percentage

Countries and Percentage of recycled plastic were investigated
Independent variable: Country
Dependent variable: Percentage of recycled plastic
Lowest percentage of recycled plastic country: Brasil

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Description

Test your understanding of the scientific method, including its steps, variables, data types, and how to conduct a scientific investigation. Learn about independent and dependent variables, and understand the importance of measuring device error. This quiz provides an engaging way to reinforce your knowledge in scientific principles.