Observation & Inference

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# Observation & Inference - PowerPoint PPT Presentation

Observation & Inference. modified by Liz LaRosa www.middleschoolscience.com 2009, from original posted at: www.science-class.net/PowerPoints/ Observation _ Inference _8th.ppt. Observations. Any information collected with the senses. Quantitative – measureable or countable 3 meters long

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### Observation & Inference

modified by Liz LaRosawww.middleschoolscience.com 2009, from original posted at:www.science-class.net/PowerPoints/Observation_Inference_8th.ppt

Observations
• Any information collected with the senses.
• Quantitative – measureable or countable
• 3 meters long
• 4 marbles
• 50 kilograms
• 35 degrees Celsius
• Qualitative – describable, not measureable
• red flowers
• smells like fresh baked cookies
• Tastes bitter
• The skill of describing scientific events
Inference
• Conclusions or deductions based on observations.
• The process of drawing a conclusion from given evidence.

Practice:

• Observations:
• I hear people screaming
• I smell cotton candy, popcorn, and hamburgers
• I see a lot of people
• Inference = ?

Look at these two sets of animal tracks.

List 3 OBSERVATIONS

Make an INFERENCE

Now what do you think?

Make 3 OBSERVATIONS

Make an INFERENCE

Now what do you think?

Make 3 OBSERVATIONS

Make an INFERENCE

### Source of graphic:http://bob.nap.edu/html/evolution98/evol6-e.html

Inference

and

Observation

Activity

ObservationInference

1. 1.

2. 2.

3. 3.

You will have a chance to confer with your table partner. Each of you need to write the following:

_________________________________________

Write down three observations- things that you can actually see that you believe are very important to the picture you are viewing.

Write down three inferences- things that you suppose are likely to happen based on what you see in the picture.

_________________________________________

Your observations and inferences do NOT have to be the same as your partner.