are they really necessary? can you do science without doing observations?
TRANSCRIPT
Are they really necessary?
Can you do science without doing observations?
Where does science begin?
• All human beings share a desire to explore and understand the world around us.
• Science is developed out of this curiosity. Science is done by the asking and answering of questions.
Why?What?
How?
What are observations?
• Two types of observations: qualitative and quantitative.
• Qualitative observations describe using our five senses.
• Any information collected with the senses.»Sight»Smell»Touch»Taste »Hear
• Examples: »red flowers»smells like fresh baked cookies»Tastes bitter»Heard a loud “pop”
What are observations?
• Quantitative observations measure.
• Made with measuring instruments:»Rulers»Balances»Graduated cylinders»Thermometers
• Quantitative – measureable or countable»3 meters long»4 marbles»50 kilograms»35 degrees Celsius
6. Let’s Practice!
Qualitative (1) or Quantitative (2)
A. It is light green in color.
1
6. Let’s Practice!
Qualitative (1) or Quantitative (2)
B. It tastes sour.
1
6. Let’s Practice!
Qualitative (1) or Quantitative (2)
C. One leaf is 9 cm long.
2
6. Let’s Practice!
Qualitative (1) or Quantitative (2)
D. It makes a loud pop sound.
1
6. Let’s Practice!
Qualitative (1) or Quantitative (2)
E. The mass of the computer is 1 ½ kg.
2
6. Let’s Practice!
Qualitative (1) or Quantitative (2)
F. It smells sweet.
1
7. You Try It!
Write a qualitative observation example!
8. You Try It!
Write a quantitative observation example!
What are observations?
Exit Question
Can you do science without doing observations?