Science 7 Q.1 w.2

• Steps of scientific method

  1. Make observations

  2. Come up with a question

  3. Develop a hypothesis

  4. Conduct an experiment

  5. Record and analyze the result

  6. Draw a conclusion
• Scientific method is a step-by-step procedure used in solving problems and answering questions
• Independent variable


  The variable that is being manipulated or controlled
• Dependent variable


  The effect that arises from the changes in the independent variable
• The skin is the largest organ of our body, covering the whole body and making up about 16 percent of our overall mass and approximately two millimeters thick
• The skin protects us against germs, pollution, and radiation from the sun
• If the type of cream is the independent variable

  The increase in muscle size is the dependent variable
• If the type of light is the independent variable


  The rate of growth of the tomato plants is the dependent variable
• If the amount of sleeping hours is the independent variable

  Gaining weight is the dependent variable
• Making observations is the skill used when listening to the sounds produced by whales
• The amount of salt in the water is the independent variable in the experiment to determine how it affects the number of plants that can live in the water
• Drawing conclusion is the last step in the scientific method
• Scientific method ensures that results can be trusted and repeated
• The information gathered during an experiment is called data
• If there were no moon


  Nights would be much darker, the Earth's rotation would slow down, and the ocean tides would be affected