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Observation vs. Inference. What is an observation?.

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What is an observation
What is an observation?

A. When you observe, you become aware of something using one of your senses. Your five senses are smell, taste, sight, touch, and sound. I an observation you simply describe something as it appears. An observation is a statement describing a fact.


Observation
Observation

In the space below, record 5 observations about your science classroom.

1.

2.

3.

4.

5.


Qualitative observation
Qualitative Observation

B. Sometimes scientists must make very careful observations. Often their senses are not good enough. There are some things that cannot be observed using just your senses. (Examples: radiation, sound waves, planets, cells, etc.)


Microscopes, Telescopes, satellites, etc.


What is an inference
What is an inference? problem? How can scientists extend their senses?

A. When you infer, you make a mental judgment based on observations. Inferences cannot be directly observed. They require thought. For example, if you get up in the morning, look up at the sky and observe dark clouds, observe the air is cool and humid, and observe puddles on the ground, you might infer that it has recently rained. Note: you did not see rain; you decided that it rained based on your observations. An inference is a statement based on your interpretation of the facts.


List 3 inferences about the classroom
List 3 inferences about the classroom problem? How can scientists extend their senses?

1.

2.

3.


Examples

Observations problem? How can scientists extend their senses?

That plant is extremely wilted.

The car stopped running

The Sox are leading there division

Inferences

That plant is extremely wilted due to a lack of water.

The car stooped running because it was out of gas.

The sox are leading there division because they are playing well right now.

Examples


More examples
More examples problem? How can scientists extend their senses?

  • What observations can we make about this picture?

  • What can we infer based on this picture?


What observations can we make from these pictures
What observations can we make from these pictures? problem? How can scientists extend their senses?


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