Scientific Method

What is a scientific law?

• A hypothesis that has not been tested yet.

• A statement based on repeated experimental observations that describes some aspect of the universe.

• An opinion that is widely accepted by scientists.

• A theory that explains a phenomenon.

What is a qualitative observation?

• An observation that describes qualities or characteristics, such as color or texture.

• An observation that involves numerical measurements, such as height or weight.

• An observation that is based on personal feelings or opinions.

• An observation that is made using scientific instruments.

What is a control group?

• A group in an experiment that does not receive the treatment and is used for comparison.

• A group that receives the treatment being tested.

• A group that is randomly selected from the population.

• A group that is used to manipulate the variables in an experiment.

What instrument is used to measure time?

• Stopwatch

• Thermometer

• Barometer

• Altimeter

What instrument is used to measure the volume of a liquid?

• Graduated Cylinder

• Beaker

• Thermometer

• Pipette

What is a variable in an experiment?

• A constant factor that does not change during the experiment.

• Any factor that can change in an experiment, affecting the outcome.

• A measurement that is taken at the end of the experiment.

• A hypothesis that is tested during the experiment.

What instrument is used to measure mass?

• Triple Beam Balance

• Graduated Cylinder

• Thermometer

• Barometer

What is a quantitative observation?

• An observation that involves measurement and numerical data.

• An observation based on personal feelings and opinions.

• An observation that describes qualities without numbers.

• An observation that is made without any prior knowledge.

What is an experiment?

• A procedure carried out to test a hypothesis.

• A method of collecting data without any manipulation.

• A way to observe natural phenomena without interference.

• A technique for analyzing historical events.

What is a hypothesis?

• A testable prediction about the relationship between variables.

• A definitive conclusion based on observations.

• An untestable statement about a phenomenon.

• A random guess without any basis.