Science Experiments

Archive for the ‘Scientific Methods’ Category

What is the definition of Causality?

The definition of Causality is the relation between a cause and effect. Causality is sometimes referred to as cause and effect relationship. If the cause-and-effect relation is high, then the causality is high. Likewise, if the cause-effect relationship is low, the causality is low.

Why is Causality important?

Causality and learning about cause and effect is very important in life. In order to do anything in life, you need to know what will cause the thing you want to achieve to happen.

For example, Dan wants to go to John’s birthday party. That is the effect. Now, Dan must think about what must be done to cause the effect. In another word, what must be done so that Dan can go to John’s birthday party. Dan can bribe Dan’s big brother to drive him. Or, Dan can do all of his own his experiments and ask his parents nicely. Whatever Dan decides to do is the cause and going to John’s party is the effect.

Example of Causality or cause-and-effect relationships

A baby learns the concept of causality at a very young age. Although babies cannot use words to communicate, babies cry to get adults’ attention. Babies know that crying will bring about the effect.

A tennis player hitting the ball causing the tennis ball to go to the other side of the court. In this case, hitting the ball is the cause, the ball going to the other side of the court is the effect.

Heat causes people to sweat. In this case the high temperature is the cause and the effect is people sweating.

Falling down a tree causing a boy to break his arm. In this case, the boy falling off a tree is the cause, breaking his arm is the effect.

Causality and Experiments

Causality and Science Experiments are closely related. People conduct Science Experiments so that they may understand how things work. In doing Science Experiments, they change one variable at a time to understand what happens when that variable is changed. This is basically the study of cause and effect or causality.

What is Calibration? What is the definition of Calibration?

Calibration is the comparison between one instrument and another instrument known to be more accurate, under conditions as nearly as possible identical to those existing in the test setup.

Calibration and Basic standards of six fundamental quantities and local standards

The basic standards for the six fundamental quantities, length, time, electric current, temperature and luminous intensity are controlled. From these basic standards, local standards are produced from which calibration can be conducted as required. The more calibration steps from the basic standard, the less reliable the instrument being calibrated will be.

Check Calibration

A check calibration should be conducted before every test series. If a check calibration is not possible, preliminary runs of the science should be conducted to give a ‘feel’ for the equipment involved. Margin of error should be accounted for in case of possible inaccuracies and errors. Instrument calibration records should be filed for later use and should be up to date.

The importance of Calibration

Calibration is very important in Science Experiments. There are many errors that can occur during Science Experiments and some of them can be avoided with good calibration of science instruments. For example, incorrect zero setting and damage to indicating mechanisms can cause variations of measuring instruments. Examples of these errors can occur in micrometers, dial gauges, Pressure gauges and stop-clocks. The result is error in the instrument output which results in different incorrect readings of Science Experiments.

Scientists do their experimenting with a formal and logical plan. A scientific experiment usually contains the following steps of scientific method, whether it is a five steps of the scientific method, a six step of the scientific methods, a 7 step scientific method, or an 8 steps to scientific method. The six step of the scientific methods will be discussed in this Scientific Method section of this Science Experiments website. 

What is the Scientific Method?

What is the definition of Scientific Method? How do you define Scientific Method? A Scientific method is fundamental to Science Experiments. Science Experiments are necessary to acquire knowledge. Scientists use many experimental techniques such as observations, hypotheses, and logic to explain why something is the way it is by forming theories and making predictions and forecasts. These theories and forecasts can be further tested by conducting Science Experiments. 

Scientific Method Steps

The following scientific method steps are the six step of the scientific methods. Click on the links below to read more about each step of the Scientific Methods. 

First Step of the Scientific Method: Identifying a problem. 

Second Step of the Scientific Method: Forming a hypothesis or a proposed solution. 

Third Step of the Scientific Method: Start a procedure or plan to help you solve the problem. 

Fourth Step of the Scientific Method: Perform Science Experiments.Fifth Step of the Scientific Method: Record data in Science Experiments to help solve the problem. 

Sixth Step of the Scientific Method: Publish a report of your findings. 

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• Calibration
• Causality
• Identifying Problems
• Scientific Method Examples
• Length Measurement
• Vernier Calipers
• How to read a vernier caliper
• Micrometer
• Pressure
• Manometer
• Bourdon Tube