Are they really necessary? Can you do science without doing observations?

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?