Row1
Observation that deals with numbers or amounts
Quantitative Observation
A standard measurement system based on the number 10
The Metric System
What is another expression for a hypothesis other than an “educated guess”?
Evidence
Graph
Investigation
Logical Explanation
Logical Explanation
The variable in the experiment that is being *measured* is called the
Dependent Variable
Does the type of gasoline put in a car effect how fast the car can drive? What is the independent variable?
Type of Gasoline
An observation that uses descriptions is not expressed in numbers
Qualitative Observation
SI unit for length is the
The Meter
A scientist is collecting data on the number of times a cricket chips per minute. What sense is the scientist most likely using to make observations
Hearing
The process that scientist use to conduct experiments is called the?
The Scientific Method
Empirical Evidence is
any data collected in an experiment
Logical Theory
Illogical
Incorrect Information
any data collected in an experiment
Representations of a complex object or process
Models
This variable may change in response to the independent variable
Dependent Variable
The container is filled to the 350 mL mark with water. What type of observation was made?
Quantitative
A scientist is conducting an experiment and uses three of the same plants, two different fertilizers, equal amounts of light, and equal amounts of water. What type of variable is the water?
Control or Constant
How does this law differ from a theory?
A law describes what happens and a theory describes how or why something happens
When only one variable is changed at a time
Controlled or Constant
How many independent variables should be tested at a time in a scientific investigation
1 and only 1
A scientist is conducting an experiment and uses three of the same plants, two different fertilizers, equal amounts of light, and equal amounts of water. What type of variable is the two fertilizers?
Independent Variable
___________ are something that scientists use to represent objects or processes that are too large, too small, or too complicated.
Models
An explanation or interpret what you observed.
Inferring
The one variable is purposely changed
Independent Variable
Why should an experiment be repeated by a scientist (repetition)?
To form a hypothesis
To reduce the chance of error in the experiment
To change all the controls
To Identify the problem
To reduce the chance of error in the experiment
Mr. Constant wanted to know if different types of music affected people's heart rates, so he played different music and checked their pulses. What is the dependent variable?
The type of music
People's heart rate
Mr. Constant's watch
People's heart rate
As technology continues to improve, our understanding of science improves, because more advanced tools allow us to make better observations of the natural world... True or False
True