What is Science?

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What is Science?
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Scientific Method

• Example
• What is irritating the cats skin?
• Observe cat behavior and called owner

1. State the Problem
2. Gather Information (Research)
3
Scientific Method

• Example
• If the cat litter is changed, then the skin
  irritation will decrease.

3. Form Hypothesis (educated guess)
4
Scientific Method

• Example
• Control cat with deodorant litter
• I.V. cat without deodorant litter
• D.V. Amount of irritated skin
• Constants cats, amount of litter, and others.

• 4. Experiment
• Control Comparison group
• Independent Variable What is being tested /
  changed
• Dependent Variable What is being measured
• Constants Anything that is kept the same
  throughout experiment

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Scientific Method

• Example
• Number of sores, Size of sores, Frequency of
  scratching
• Deodorant in cat litter most likely caused skin
  irritation.

5. Collect Analyze Data
6. Conclusion
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Scientific Method

• Repeat Experiment
• Back to step 4

• Form New Hypothesis
• Back to step 3

Hypothesis not correct
Hypothesis correct
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Types of Science

• Physical Science is the study of matter and
  energy
• Examples
• Chemistry
• Physics

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Types of Science

• 2. Life Science is the study of living things
• Examples
• Zoology
• Botany

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Types of Science

• 3. Earth Science is the study of Earth Space
• Examples
• Geology
• Astronomy

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Theory or Law?

• Theory NOT a guess, but it is an explanation
  based on MANY observations and experiments
• Examples Cell theory, Big Bang theory, Plate
  Tectonic theory
• Law Statement about how things work in nature
  that seem to be true all of the time
• Examples Law of conservation of mass, Newtons
  Laws of Motion
• Theories and Laws can change over time