What is science?
It is very interesting to study life stories. Nowadays, science and technology have progressed rapidly. Doctors are able to replace the heart. Scientists can send astronauts and satellites to the moon. Human beings try to create prosperity until they forget that the things they have created have an impact on human life, such as industrial plants, causing impure air and water to become toxic to living things. DDT is used to kill insects, causing the effect. The residual of the drug accumulates in the user to the point of life threatening. The growing population of the population every year causes problems with the habitat and the food, and these problems are greatly reduced as humans understand biology better. Biology is therefore very essential to study today.
When it comes to science, we often think of natural science, such as chemistry, physics, biology.These subjects deal with matter, energy, interactions between matter and energy. The science here refers to the study of truth in nature. Which is used as a rule to describe the event Various stories In nature Studying a subject that is one of the sciences requires knowledge from other disciplines, for example geology (geology) study is required. Understand chemistry and physics Study of oceanography Oceanoglaphy requires chemistry, physics, and biology to describe concepts in the sea.
The methods of science
Explaining the stories Occurring in nature There is a need for a step-by-step approach:
- An unexplained phenomenon has occurred.
- Make a hypothesis to explain the phenomenon.
- Perform experiments to (test hypothesis) and collect data numbers.
- Using the data to analyze (analyze) by using statistics
- Results from data analysis If hypothesis is confirmed, further experiments are performed to further prove hypothesis.
- If the proof of hypothesis has a higher probability to be true, then hypothesis can be theoretically set.
- If the analyzed data does not confirm hypothesis or has little probability to be true, re-establish the hypothesis and run an experiment to prove the hierarchical hypothesis again.
For example, we noticed that plants like to show the sun by trying to lean the plant in the sun or place the leaves in the most sunlight, we set the hypothesis that sunlight is essential to the cooking of the plant. The experiment was then started using two plants of the same type, planted in the same soil, watered the same and located in the same air-conditioned place. Different from one tree to get sunlight. But the other one was in the dark and was not exposed to light. The leaves were then analyzed for starch percentages. There will be no starch in the plant leaves that are not exposed to sunlight. From this experiment, it can be concluded that sunlight is necessary for the cooking of plants.
Probability, Hypothesis, Theory, Law
Probability means probability. For example, tossing a baht coin, the chance of getting off the head is equal An opportunity to show off Koi as Nowadays, scientific experiments often describe results as probability as a percentage. If probability is high, the chances of hypothesis will be true.
Hypothesis is a hypothesis that is simply an explanation of a natural phenomenon. There is not enough evidence or evidence yet.
Theory is that hypothesis is true, there is evidence, proof, confirmed with certainty.
Law refers to the rule used to describe events. Or a phenomenon in nature In which such events or phenomena certainly do not change within the same environment