Module 1 lesson 1
Upcoming SlideShare
Loading in...5

Module 1 lesson 1






Total Views
Views on SlideShare
Embed Views



0 Embeds 0

No embeds



Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
Post Comment
Edit your comment

Module 1 lesson 1 Module 1 lesson 1 Presentation Transcript

  • Scientific Method
  • What is Science?
    • Observation, identification, description, and explanation of phenomena (occurrences in the world around us)
    • Latin root for the word science is scientia meaning knowledge
    • Through study of science
      • Ask Questions
      • Develop Hypothesis (educated guesses)
      • Design and Carry out Experiments
      • Gain a Better Understanding of the Universe
  • Scientific Method
    • Procedure for studying nature
    • Consists of several steps
      • Make an observation
      • Ask questions
      • Form the hypothesis
      • Set up an experiment
      • Collect data
      • Analyze data
      • Draw a conclusion
  • Making Observations and Defining the Problem
    • Observations are made by using the five senses (sight, touch, smell, sound, and taste) to obtain information
    • Making observations may lead to identifying problems
  • Asking Questions
    • By asking questions we can search for logical explanations of what we observe and find ways to solve problems
  • Forming the Hypothesis
    • After observing and asking questions we can form an opinion about how or why something happens
    • Hypothesis – statement that gives the best possible response to the question
      • Based on already known facts
      • Educated Guess
  • Setting Up the Experiment
    • Should give accurate and measureable results
    • Should be designed to collect information
    • Goal is to support or reject a hypothesis
    • Set up to examine only one condition (variable) at a time to give meaningful data
  • Experimental Groups
    • Control Group
    • Experimental Group
  • Experimental Variables
    • Independent Variable – factor that is changed or manipulated during an experiment in order to determine the effect of the change
    • Dependent Variable – the factor that the experimenter is measuring or counting
      • Changes in response to the independent variable
    • Control Variable – all other factors in an experiment
      • Things that the investigator attempts to control
      • Goal is to keep them the same for all samples
  • Collecting Data
    • Gathered from observations and measurements taken during an experiment
    • Qualitative Data – information that cannot be assigned a numerical value
      • Usually collected using the five senses
    • Quantitative Data - anything that can be expressed as a number or quantified
      • Include lengths, weights, masses, volumes, time, anything expressed as a number
    • Observations must be recorded
  • Analyze Data
    • Use tables, charts, graphs to organize data so it is easier to read
  • Draw Conclusion
    • Based on data
    • Support/reject our hypothesis
  • Sample Experiment
    • Asked to observe marine snail behavior in an aquarium
    • Tank contains several snails at one end and food at the other end
    • Observe snails climbing the aquarium and swarming all over the food
  • Sample Experiment
    • Materials:
      • Aquarium
      • Food
      • Seawater
      • Graduated cylinder
      • Snails
      • Metric ruler
  • Sample Experiment
  • Sample Experiment
  • Sample Experiment
  • Sample Experiment