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3 types of investagitions

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Rachel Jones

on 12 September 2013

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Transcript of 3 types of investagitions

3 types of investigation
Def- Comparative investigations is gathering data on different objects etc. or collecting data in different conditions in order to make a comparison.
Fun Facts: 1. It collects data by comparing two or more things.
2. In a comparative investigation you use a hypothesis before you start the investigations.
3. By comparing the organisms you get a better idea of both things not just one.
Comparing height, weight, color, etc.

What is Experimental: A type of investigation done to collect evidence that either supports or does not support a cause or effect relationship.
Fun Facts:
1. All of the factors can be held constant except the ones that are being tested.
2. Can be used when focused on a single variable.
3. Experimental investigations have dependent and independent variables.
4. Determines the cause of a problem.
Testing the height of a ramp to determine how far a marble will roll

What is descriptive: investigation you need to use careful observations and measurements to develop descriptive findings about an organism, substance, reaction, or natural process.
Fun Facts:
1. Use and Make Awesome Charts and Graphs!
2. Observe Project and Cool Experiments!
3. Describe How Things Work!
Observing how a plant and animal cell look like while describing what the cells look like.

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