Scientific Knowledge
Define Empirical evidence.
Empirical evidence contains data and measurements to support a scientific explanation.
What is the independent variable?
The variable that is purposely changed in an experiment.
What are measurements?
A measurement is a description that includes a number and a base unit.
What is a model?
A model is something that shows the structure of an object
Define Pseudoscience
Pseudoscience can be theories or just ideas that are based on incorrect methods, it can seem like real science, but it isn't true.
What is a dependent variable?
The variable that changes because of the independent variable.
What is the term SI in science?
The international system of units.
What are Simulations?
Simulations use models to imitate function/behavior/process of what the model represents.
What are the steps of the scientific method?
- State problem
- Observe
- Infer
- Hypothesize
-Experiment
- Conclude
(Doesn't have to be exactly like this or in this order)
Name 5different graphs.
A Scatter Plot graph, A Bar graph, Circle graph, A Linear Graph, and a Nonlinear graph.
Convert 0.0000008 into scientific notation.
Ans = 6 x 10^-6
Name 3 Different types of scientific models that scientists use.
- Physical Model
- Mathematical Model
- Conceptual Model
What is a scientific law?
The scientific law describes how the natural world works.
What is a nonlinear graph?
A graph that has plotted points that form a line shaped in an exponential shape.
Why are tools and technology important for scientific investigations?
With tools and technology, scientists can study things and investigate them profusely. They can also use tools like certain scales to help them with their research.
What is a conceptual model?
A conceptual model shows how parts of a system are related or organized.
What is a scientific theory?
A scientific theory helps us understand the laws that we observe.
What is the difference between a nonlinear graph and a linear graph.
In a nonlinear graph the line is shaped in a exponential shape, and in a linear graph the line is straight.
differntiate accuracy and precision.
Accuracy is the description of how close a measurement is to the true value, and precision is the exactness of a measurement.
What are mathematical models?
Mathematical models use many different types of data to show how a system/process works.