Category 1
What do we call the observation that deals with numbers?
Quantitative observation.
What is experimental bias?
It is when there is a mistake in the design of an experiment.
What is an attitude of doubt?
It is skepticism.
A conclusion based on too little data is called which of the following:
a. deductive reasoning
b. Personal bias
c. Faulty reasoning
d. Cultural bias
Faulty reasoning.
What is a variable?
A variable is a factor that changes in an experiment.
What is scientific investigation?
It is a way scientists study the natural world.
Before you conduct an experiment, you must:
a. develop a hypothesis
b. collect data
c. draw conclusions
d. communicate your results
Collect data.
A mother comes home to find her son holding a tennis racquet behind him, with a worried look on his face. A broken vase is on the floor next to him. What inference can you make about the situation?
He was playing tennis in the house and he broke the vase.
What is scientific law?
It is describing patterns in nature without trying to explain those patterns.
What is scientific theory?
It is a well tested explanation of observations.
How are the skills of inferring and predicting alike?
They both use data and observations.
Why do scientists need a strong sense of ethics?
Because scientific research affects people and environment.
What is a scientist doing when he is evaluating?
He is comparing data to reach a conclusion.
Which kind of reasoning uses specific observations to make generalizations?
Inductive reasoning.
How are the skills of inferring and predicting different?
Inferring explains what happened while predicting tells what is going to happen in the future.