Science 9 - Quest 1 - theories, method
What is the formula for writing a hypothesis?
The formula for writing a hypothesis is → If, then statement ( If ___[I do this]___, then ___[this]___ will happen. )
What is the goal of the scientific method?
The goal of the scientific method is to discover cause and effect relationships by asking questions, carefully gathering and examining the evidence, and seeing if all the available information can be combined into a logical answer.
dependent variable
the things that the scientist focuses his or her observations on to see how they respond to the change made to the independent variable; this is the variable that we are observing and measuring
Is the scientific method always done the same exact way? Explain why or why not.
No, the scientific method isn't always done the same exact way. This happens when direct experimentation is not possible, scientists modify the scientific method. They usually go in the same order but do all the steps.
10 science safety rules:
Read the Instructions Before You Start Clean Up All Messes Immediately Organize Your Lab Handle Chemicals Properly Practice Good Fire Safety Skills Protect your Skin (Wear Gloves) Save Your Nose hairs (Waft) Wear Goggles if Appropriate Lose the Comedy Routine No Eating During Lab
What are the things that make a good hypothesis?
A good hypothesis is a testable answer to a scientific question. It should lead to one or more predictions that can be tested by experimenting, and should include both an independent and dependent variable. Should be based on information from reference materials about the topic, at least one clear prediction, and predictions are testable. If ___[I do this]___, then ___[this]___ will happen. (If, then statement)
What makes a good scientific question?
A good scientific question is one that can have an answer and be tested, can be tested by some experiment or measurement that you can do, builds on what you already know, and when answered, leads to other good questions. The question should be something you can observe or measure. The question should be what you want to know, based from your observation in nature.
All about scientific LAWS:
A scientific law is a statement based on repeated experimental observations that describes some aspects of the universe. ~ It always applies under the same conditions, and implies that there is a causal relationship between its elements. ~ Scientific laws do not explain things. But they do make predictions! ~ Example: Consider Newton's Law of Universal Gravitation. Newton could use this law to predict the behavior of a dropped object, but he couldn't explain why this actually happened!
All about scientific THEORIES:
A scientific theory is a well-substantiated explanation of the natural world that is acquired through the scientific method, as well as confirmed through observation and experimentation (empirical evidence). ~ Scientific theories aim to predict and to explain aspects of the physical universe or other specific areas of inquiry. ~ They are testable and make falsifiable predictions. This means that they can be "debunked, rejected, or modified," if you will. ~ A scientific theory is different from the word "theory" that we use every day. Usually this implies that an individual is making a guess. ~ Scientific theories can simply be explained by saying that it is a hypothesis that has been accepted by the scientific community. ~ Example: The Heliocentric model is a theory that places the Sun at the center of the solar system, and it suggests that the planets orbit around it. This model replaced the Geocentric model, which was the belief that the Earth was the center of the solar system and the other planets, as well as the Sun, orbited it.
3 types of variables and their main difference
Independent variable - changed Dependent variable - measured Controlled/Constant variable - the same
Why is it important that we follow science safety rules?
It is important that we follow science safety rules. We follow them to keep people from getting into serious situations. Also to help prevent injuries and irritation.
7 steps of the scientific method:
Make an observation Formulate a question Research and collect data Form a hypothesis Experiment Collect data Draw conclusions and share results
What makes something a scientific law?
Some things that makes something a scientific law are same conditions, a casual relationship between its elements, and there's no explanation, but predictions instead.
What is the difference between a scientific law and scientific theory?
The difference between a scientific law and scientific theory is that a law is only applicable under certain conditions but a theory explains how or why.
scientific theory
a well-substantiated explanation of the natural world that is acquired through the scientific method, as well as confirmed through observation and experimentation (empirical evidence), ideas of how a natural process works, an explanation
Why do we communicate results in the scientific method?
We want to communicate results so others can use the new found information.
Why do we want to do research in the scientific method?
We want to research what information is already known about your question. You want to do your research to make sure you are finding the best way to do things, you don't want to repeat mistakes from the past.
scientific methods
a series of steps followed to solve problems including collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions
scientific law
a statement based on repeated experimental observations that describes some aspects of the universe; describes a process in nature that can be tested by repeated experiments
independent variable
is the variable that is being changed by the scientist
