
The scientific method (article) | Khan Academy
At the core of biology and other sciences lies a problem-solving approach called the scientific method. The scientific method has five basic steps, plus one feedback step:
The scientific method (article) | Khan Academy
At the core of physics and other sciences lies a problem-solving approach called the scientific method. The scientific method has five basic steps, plus one feedback step:
The scientific method (video) | Khan Academy
The scientific method is a logical approach to understanding the world. It starts with an observation, followed by a question. A testable explanation or hypothesis is then created. An experiment is …
Biology and the scientific method review - Khan Academy
In most cases, the scientific method is an iterative process. In other words, it's a cycle rather than a straight line. The result of one experiment often becomes feedback that raises questions for more …
The scientific method and experimental design - Khan Academy
B A hypothesis is the correct answer to a scientific question. C A hypothesis is a possible, testable explanation for a scientific question. D A hypothesis is the process of making careful observations.
Francis Bacon and the scientific revolution - Khan Academy
Although modern scientists have revised many of the truths subsequently adopted by Bacon and his contemporaries, we still utilize the method of proving knowledge to be true via doubt and …
Controlled experiments (article) | Khan Academy
The scientific method begins with an observation, which leads the scientist to ask a question. They then come up with a hypothesis, a testable explanation that addresses the question.
Scientific notation examples (video) | Khan Academy
Scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 …
Polymerase chain reaction (PCR) (article) | Khan Academy
ok, I've got that PCR consists in basic of 3 steps - Denaturation (96C)-Annealing (55-65C)-Extention (72C). "This cycle repeats 2 - 35 times in a typical PCR reaction, which generally takes 2 - 4 hours, …
Scientific method and data analysis (practice) | Khan Academy
Test your knowledge on the scientific method and experimental design!