Scientific Investigations
Experiments are important in scientific investigations because...
What is allowing the scientist to gather data to prove their hypothesis right or wrong.
The three main natural sciences
What are biology, geology, physics/chemistry?
Organize data
What is a data table?
The standard unit of measurement
What is the SI System?
The three main models
What are physical models, mathematical models, and conceptual models?
Controlled experiments should only have one...
What is an independent variable?
The difference between laws and theories
What is theories explain why things happen and laws explain what will happen?
Help find patterns and relationships in data
What are graphs?
Length, mass, time, temperature, volume, weight, and density
What are quantities?
Scale models are good to...
What is studying things that are too small or too big to be easily observed?
The first step of the Scientific Method
What is finding a problem and forming a hypothesis around it?
Scientists collect data in the lab because...
What is controlled environments and variables for experiments.
The graph is constant
What is a linear relationship?
Shorten very long or small numbers and formulas
What are scientific notation and prefixes?
Good for calculating mathematical equations, creating graphs, and making predictions
What is a computer?
The role of the independent and dependent variables in scientific investigation
What is the independent variable shows the scientist changes in the dependent variable, which can support or reject the hypothesis?
Scientists collect empirical evidence in the field because...
What is fresher samples and in-person experience?
Graphs that are not represented with a straight line
What is a non-linear relationship?
Measurements close to the true value of the quantity measured
What is accurate measurements?
Show how parts of a systems are related and organized
What are conceptual models?
Good characteristics of investigations include...
What is well-documented observations, supporting evidence, controlled variables, consistent results, and peer revisions?
New evidence is found that goes against an accepted hypothesis
What is a new hypothesis is created based around the new evidence?
What is a scatter plot?
Measurements that are repeatable and reliable
What are precise measurements?
Allow scientists to test hypothesis in a less expensive and dangerous way
What is simulations?