1. Aim: What are observations? Using your senses to collect data about the properties of an object or an event. senses: sight, hearing, smell, touch, and taste. There are two types of observation: Qualitative and Quantitative

2. Qualitative  Quality Deals with descriptions Data that can be observed, but not measured. Colors, textures, smells, tastes appearance, beauty, etc. Quantitative  Quantities Deals with numerical values http://www.regentsprep.org/Regents/math/ALGEBRA/AD1/qualquant.htm

3. Demonstration: Take a piece of halite (rock salt) and granite (igneous rock) to make valid observations. Try to use both qualitative and quantitative observations.

4. What is an inference? A judgment based on observations. Can also be called a “prediction”, or what will happen in the future. Example: It is cloudy today; it will probably rain later in the day. What are other types of inferences?

5. Why do scientists classify their observations? To keep objects or events more organized. Compare differences and similarities. Easier to understand. What are some examples of classification?

6. Planets are classified on their distance from the sun and their densities. Stars are classified by their circumference, color, and brightness. Rocks and Minerals Storms Natural disasters, and many more.

7. Summary 1.What is the definition of an observation? 2.What is an example of an observation in the classroom? 3.What is the difference between qualitative and quantitative observations?

8. 4.What is the definition of an inference? 5.State whether the following descriptions are either observations or inferences: The rock contains several colors The lake will totally evaporate next year. The mineral is cubic-shaped