Replication,Repetition, Variables,Types of experiments.

What is a dependent variable?

• A variable being tested in an experiment.
• A variable that changes depending on another variable.
• A variable that is kept the same in an experiment.

What is a controlled variable?

• A variable being tested in an experiment.
• A variable that changes depending on another variable.
• A variable that is kept the same in an experiment.

What is an independent variable?

• A variable being tested in an experiment.
• A variable that changes depending on another variable.
• A variable that is kept the same in an experiment.

How many independent variables should be in an experiment?

• One
• Unlimited

The scientific method is only used in science class to conduct experiments.

• False.
• True.

For every experiments how many trails or repetitions usually scientist /we should do

• 3 to 5

• no trials required

• 1 trial

More trails or repetitions of an experiment will make the results or conclusions more .........................

• Accurate

• False

• Experimental

Having an experiment repeated by others is called ?

• Repetition

• Replication

• Experiment

During replications others have to follow the same procedures to get the same output or results

• True

• False

Scientists frequently repeat the experiments of others scientists. Why is this important in science?

• Scientists often ask each other for help in performing experiments.
• Replication of experiments helps to confirm and verify results.
• Scientists frequently perform other scientists’ experiments in order to practice their technique.
• Repeating experiments is an effective way to make sure a laboratory is in optimal condition.