The document discusses the differences between observations and inferences in scientific investigations. Observations are facts gathered through the senses that can be quantitative, like measurements, or qualitative, like descriptions of color or smell. Inferences are conclusions drawn from observations and involve interpreting evidence to form explanations. The document provides examples asking readers to list observations and make inferences about scenarios involving animal tracks and a scene involving people at an amusement park.

1. Observation & Inference modified by Liz LaRosa www.middleschoolscience.com 2009, from original posted at: www.science-class.net/PowerPoints/ Observation _ Inference _8th.ppt

2. 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

3. 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 = ?

4. Look at these two sets of animal tracks. List 3 OBSERVATIONS Make an INFERENCE

5. Now what do you think? Make 3 OBSERVATIONS Make an INFERENCE

6. Now what do you think? Make 3 OBSERVATIONS Make an INFERENCE

7. Activity Page www.middleschoolscience.com/footprints-isn.pdf In your science notebook, write your conclusion.

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