Podcast
Questions and Answers
What is the primary purpose of the scientific method?
What is the primary purpose of the scientific method?
- To provide a systematic approach to solving scientific problems. (correct)
- To gather information only from theoretical studies.
- To make conclusions based solely on personal opinion.
- To prove a hypothesis without testing it.
Which of the following best describes a theory in scientific terms?
Which of the following best describes a theory in scientific terms?
- A law that can be easily changed with new data.
- An untested hypothesis that has not been observed.
- A logical explanation based on repeated experimentation. (correct)
- A fact that is universally accepted without question.
Which branch of science focuses on the study of matter and energy?
Which branch of science focuses on the study of matter and energy?
- Earth science
- Biological science
- Physical science (correct)
- Life science
What is the metric unit used to measure mass?
What is the metric unit used to measure mass?
How would you convert 2500 grams to kilograms?
How would you convert 2500 grams to kilograms?
What is defined as the resistance of an object to change in motion?
What is defined as the resistance of an object to change in motion?
Which of the following statements about weight is true?
Which of the following statements about weight is true?
What does density represent in physical science?
What does density represent in physical science?
What happens to an object with a density greater than 1 g/cm³ when placed in water?
What happens to an object with a density greater than 1 g/cm³ when placed in water?
What temperature does water boil at in Celsius?
What temperature does water boil at in Celsius?
Flashcards
The Scientific Method
The Scientific Method
A tool used by scientists to solve mysteries in science. It involves a series of systematic steps to investigate and understand natural phenomena.
Hypothesis
Hypothesis
A proposed explanation for a phenomenon based on observations and initial data. It is a testable prediction.
Independent Variable
Independent Variable
Variable that is being tested or manipulated by the experimenter in an experiment.
Dependent Variable
Dependent Variable
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Theory
Theory
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Law
Law
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Life Science
Life Science
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Earth Science
Earth Science
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Physical Science
Physical Science
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Mass
Mass
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Study Notes
The Scientific Method
- The scientific method is a tool for solving scientific mysteries
- Basic steps
- State the problem
- Gather information
- Form a hypothesis (educated guess)
- Experiment to test the hypothesis
- Identify variables (independent and dependent)
- Record and analyze data (observations & measurements)
- State the conclusion
- Repeat the work (done by scientists globally)
- Theory: A logical explanation for natural events. Theories are tested extensively and repeatedly.
- Law: A theory that has been tested many times and is more certain than a theory.
Branches of Science
- Life science: The study of living things
- Earth science: The study of Earth, including rocks, oceans, volcanoes, earthquakes, the atmosphere, and astronomy
- Physical science: The study of matter and energy
- Chemistry: The study of what substances are made up of and how they change
- Physics: The study of forms of energy, such as heat
Metric System
- Basic units
- Length: Meter (m)
- Volume: Liter (L) or Milliliter (mL)
- Mass: Gram (g)
- Temperature: Celsius (°C) or Kelvin (K)
- 1 L = 1000 mL = 1000 cm³
- Water freezes at 0°C or 273K
- Water boils at 100°C or 373K
Physical Properties of Matter
- Matter: The visible universe consists of matter
- Properties: Characteristics that describe an object (e.g., colour, texture, shape)
- Specific properties: Distinguish one object from another
- General properties: Common to all matter (mass, weight, density)
- Mass: The amount of matter in an object. Mass is constant (unchanging).
- Inertia: Resistance of an object to changes in motion
- Weight: The force of gravity on an object. Weight changes with location and conditions (e.g., in water).
- Gravity: The attraction between all objects. The greater the mass, the greater the gravity.
- Volume: The amount of space an object occupies
- Density: The mass per unit of volume (Density = Mass / Volume)
- Water has a density of 1 g/cm³
- An object with higher density sinks in water and an object with lower density floats in water.
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Description
Explore the fundamental concepts of the scientific method and its application in various branches of science. This quiz covers the steps involved in the scientific process, including hypothesis formulation and data analysis. Additionally, learn about life, earth, and physical sciences.
