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Science 101

Scientific Inquiry, Variables, & Types of Observations

QuestionAnswer
What you are trying to find out from your experiment question
an educated guess or prediction of what will happen during the experiment hypothesis
a plan to test your prediction;your procedure, step-by-step experiment
collecting information and data from the experiment investigating
recording information you gather with your senses during the experiment observe
looking at all the data and variables of the experiment analyze
the results of your experiment; the answer to your question conclusion
observations that include numbers or measurements quantitative
observations that describe something useing only the 5 senses qualitative
any factor that can change in an experiment variable
the one variable that the scientist changes; it is what you are testing independent
the variable that you will measure or observe dependent
The group in an experiment that remains unchanged so that you have something to compare your results to control group
the variables in an experiment that COULD change but remain the SAME since you only test one thing at a time constants
In an experiment to see if heating water makes sugar dissolve faster, the temperature of the water would be the independent variable
In an experiment to see if drinking lemon water everyday helps you lose weight, your weight would be the dependent variable
In an experiment to see if electric cars are more sluggish than gas powered cars, the driver for both cars would be a constant variable
In the Mythbusters experiment to see if greenhouse gasses really do contribute to global warming, the same sized ice sculptures would be a constant variable
In the Acid Rain lab, the type of beans used in each group would be a constant variable
In the Acid Rain lab, the different vinegar solutions would be the independent variable
In an experiment to see which paper towels can hold the most liquid without breaking, the time it takes for the paper towel to break would be the dependent variable
The desk is smooth is an example of a qualitative observation
The seed is 4 cm long is and example of a quantitative observation
The cookie smelled like chocolate is an example of a qualitative observation
The average speed of the cheetah was 80mph is an example of a quantitative observation
The mass of the cheeto is 3 grams is an example of a quantitative observation
A good hypothesis explains the relationships between the variables
This should be worded in an "If......, then......" statement hypothesis
In the Acid Rain lab, the group of seeds with H2O was the control group
In an experiment to see if a new drug prevents sneezing in people who are allergic to grass, the new drug is the independent variable
In an experiment to see if you increase the temperature of water, the faster a boiled egg will cook, the time it takes for the egg to cook is the dependent variable
Created by: LSumrall72