Observations and Inferences

What is physical science primarily concerned with?

• The study of living organisms

• The study of non-living systems and the laws of nature

• The study of human behavior

• The study of historical events

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DOK Level 2: Skill/Concept

Which of the following is an example of a qualitative observation?

• The temperature is 25°C

• The liquid is blue

• The mass of the object is 5 kg

• The length of the table is 2 meters

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DOK Level 2: Skill/Concept

Which of the following best describes an inference?

• A direct measurement of a quantity

• A conclusion drawn based on observations

• A guess without any basis

• A statement of fact

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DOK Level 2: Skill/Concept

Identify the quantitative observation from the following statements:

• The sky is cloudy

• The flower smells sweet

• The car is moving at 60 km/h

• The music is loud

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DOK Level 2: Skill/Concept

Which of the following statements is an inference rather than an observation?

• The water is boiling at 100°C

• The plant is green

• The dog is barking because it is hungry

• The book weighs 1 kg

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DOK Level 2: Skill/Concept

What is the main difference between qualitative and quantitative observations?

• Qualitative observations are based on numbers, while quantitative observations are based on descriptions

• Qualitative observations are based on descriptions, while quantitative observations are based on numbers

• Qualitative observations are always more accurate than quantitative observations

• There is no difference between qualitative and quantitative observations

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DOK Level 2: Skill/Concept

Which of the following is a correct example of making an inference?

• Measuring the length of a table

• Noticing that the sky is dark and concluding it might rain

• Recording the temperature of a liquid

• Counting the number of students in a classroom

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DOK Level 2: Skill/Concept

In the context of physical science, which of the following is a quantitative observation?

• The solution turned pink

• The metal is shiny

• The object has a mass of 10 grams

• The sound is loud

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DOK Level 2: Skill/Concept

Observations are based on direct sensory experiences.

• True

• False

Inferences are always based on observations.

• True

• False