______ is the study of the natural world.
______ is the study of living things.
______ is the study of Earth.
______ is the study of nonliving matter and energy.
_______ is and probably always will be changing.
A _____ _______ is an explanation supported by a large amount of evidence.
A _____ _______ is a description of a specific relationship under given conditions in the natural world. Describes how the world works.
At a constant temperature, as the pressure on a gas increases, its volume decreases. This is known as _______ ______.
A _______ ______ is a well-supported explanation of nature.
_______ help us understand the laws we observe.
________ describes what happens, while theories explain how things happen.
_______ ______is based on empirical evidence.
________ ________ is all of the measurements and data scientist gather in support of a scientific explanation. Generally, scientific work is gathered in the field or laboratory.
_______ or _______ is empirical evidence gathered outdoors or where conditions cannot be controlled.
In a _______, scientists have the opportunity to collect data in a controlled environment. Unlike in the field, the ________ allows scientists to control conditions like temperature, lighting, and even surrounding air.
the theory of the atom
Scientific ideas and explanations change usually because new evidence was found or someone found a better way of explaining the old evidence. Example: The ______ ____ _____ ______ changed because new evidence modified or changed the theory over time.
A scientist makes _______ _________ based on a large body of observations of the world.
Two basic types of scientific investigations are ________ and ________. Most scientists use both.
An _______ is an organized procedure to study something under controlled conditions. Most variables that might affect the outcome can be controlled in a laboratory.
An ______ can also be done in the field, but fewer conditions can be controlled.
________ is the process of obtaining information using the senses. Example: The pen is blue.
A ________ is a representation of an object or system.
A ________ is a testable idea or explanation that leads to scientific investigation.
The __________ can be tested by experiment or observation.
__________ are factors that can change in a scientific investigation.
An ________ _________ or test variable, is the factor that is deliberately manipulated or changed in an investigation.
An experiment should have _____ independent variable.
A __________ ________ or outcome variable, is the factor that changes as the result of manipulation of one or more independent variables. It is the variable being measured.
The _________ variable changes based on the __________ variable.
____________ __________ can be measured outside of experimentation.
______ are information gathered by observation or experimentation that can be used in calculating or reasoning.
define or identify the problem
What is the 1st step in the Scientific Method?
make predictions and form a hypothesis
What is the 2nd step in the Scientific Method?
plan an investigation or experiment
What is the 3rd step in the Scientific Method?
identify variables to test the hypothesis
What is the 4th step in the Scientific Method?
collect and organize data
What is the 5th step in the Scientific Method?
interpret and analyze information
What is the 6th step in the Scientific Method?
draw and defend conclusions
What is the 7th step in the Scientific Method?
Some _________ can only be tested through observation. Others must be tested in experiments.
If an investigation does not support a hypothesis, it is still ______. The data can help scientists form a better hypothesis.
Experiments should be verified through _______ and _______.
Before a report on an investigation is published in a scientific journal, it should undergo a ______ ______ by scientists not involved in the investigation.
repetition and replication
What are the two ways that scientific investigations can be retested?
The scientist who conducted the original investigation can repeat the study.
Each time an investigation is done is called a _____.
Other scientist can replicate the investigation or do the same investigation. Results should be the same for the investigation to be accurate.
_________ are the facts, figures, and other evidence scientists gather when they conduct an investigation.
________ _______ are one easy way to organize a lot of data. Scientists design and build tables to hold their data in an orderly way.
quantities, times, and frequencies
Typical data includes _________, _________, and _________, or the number of times something happens.
columns and rows
Data tables include ______ and ______ that are labeled correctly.
Units of measurement, such as feet or seconds, are in the ________ ________.
Units of measurement
Units of measurement
Units of measurement
Units of measurement
triple beam balance
Scientists use the ______ ______ to record observations and measurements during their investigations.
_______ are used to analyze data for patterns and trends.
circle graph; circle
A _______ ________ is a way to display data that are parts of a whole. Each section of the circle represents a category of the data.
______ show data in a visual way.
______ ______ also called a pie chart, is used when showing how each group of data relates to all the data.
______ ______ is used to display and compare data in a number of categories.
is most often used to show continuous change. They are useful for showing changes in variable over time.
A _________ ________ can be a visual or mathematical representation of an object or system.
are useful for showing things that are too small, too large, or too complex to see easily.
Example: A globe and an atlas are visual _____ of the Earth.
Example: Scientists who study the Earth's atmosphere use mathematical ______ to try and imitate the Earth's climate.
______ are used to make predictions before an investigation as well as to represent the results after an investigation.
Models must be used wisely Scientists must be aware of the model's strengths and limitations.
Models can be created out of a variety of materials. They can be simple or complex.