Types of Investigations Scientists investigate in different ways when inquiring.

Comparing Types of Investigations TYPEFOCUS QUESTION Describing Collect numerical data and/or observations How do make a bulb light and not light using a battery, bulb, and wire? Classifying Sort or group observations. How do you classify electric circuits? Controlled Experimenting Conduct a “fair test” that relates effect of manipulated variable on responding variables when other variables are controlled. What happens if we add several batteries to the circuit

DESCRIBING Investigations Identify What to Observe. Develop an Observation Guide that anticipates what can be observed using multiple senses Develop a Data Organizer that facilitates easy comparison of different observations. Bulb LightsBulb Does Not Light

CLASSIFYING Investigations Identify criteria for comparison be observed using multiple senses. Develop a Data Organizer that facilitates easy comparison of different observations. CriteriaOpenClosed Critical Contact Points Loop Bulb Lights?

CONTROLLED EXPERIMENTING Investigations Identify Variables. Type of VariableExample Manipulated what to change Batteries Responding what to observe Bulb Lights/Does not Light Controlled what to keep the same Wire, bulb