What is the main characteristic of qualitative data?
Descriptions
something a person holds to be true - may not be scientifically proven
belief
Does spinach make dogs grow larger? A scientist gets 6 poodles the same age and treats them the same except every day 3 dogs eat 10 ounces of dog food plus 4 ounces of spinach and 3 dogs eat 10 ounces of dog food. What is the hypothesis?
If dogs each spinach then they will grow larger.
What is measured in an experiment?
Dependent variable
Name the 6 steps of the scientific method.
Does spinach make dogs grow larger? A scientist gets 6 poodles the same age and treats them the same except every day 3 dogs eat 10 ounces of dog food plus 4 ounces of spinach and 3 dogs eat 10 ounces of dog food. What is independent var?
Spinach
Why can't a scientific law and a scientific theory turn into each other?
They answer different types of questions.
Does spinach make dogs grow larger? A scientist gets 6 poodles the same age and treats them the same except every day 3 dogs eat 10 ounces of dog food plus 4 ounces of spinach and 3 dogs eat 10 ounces of dog food. What is the control var?
type of dog, dog food. treated exactly the same except spinach,
Does spinach make dogs grow larger? A scientist gets 6 poodles the same age and treats them the same except 3 dogs eat 10 ounces of dog food plus 4 ounces of spinach and 3 dogs eat 10 ounces of dog food every day. What is control group?
Dogs that are not fed spinach
What is changed (on purpose) in an experiment?
Independent Variable
What stays the same in an experiment?
Control Variable
What is used to test a hypothesis?
Experiment
What is the main characteristic of quantitative data?
Numbers
Name one way in which scientific laws and scientific theories are similar?
Both are based on evidence. OR Both can change with new evidence
Name one characteristic of a scientific theory.
1. Based on inferences. 2. More generalized. 3. Answers "why" questions
An explanation as to why certain laws and fact exist. Answers "why" questions
Scientific Theory
Name one characteristic of a scientific law.
1. based on observations. 2. more descriptive. 3. Holds for specific conditions. 4. Answers "what" questions
Does spinach make dogs grow larger? A scientist gets 6 poodles the same age and treats them the same except every day 3 dogs eat 10 ounces of dog food plus 4 ounces of spinach and 3 dogs eat 10 ounces of dog food. What is the dependent var?
size of dogs
Name the 2 types of data that can be collected in an experiment.
Qualitative & Quantitative data
Scientific Method
A series of step used to test a hypothesis to reach a scientific conclusion
A rule based on facts and proven hypothesis. Answers "what" questions
Scientific Law
a statement that can be proven or disproven
hypothesis