Vocab
Variables
Investigations
Graphs
Miscellaneous
100
Information collected using the senses
Observation
100
The variable that the scientist changes and is testing.
Independent variable
100
Why do scientists do multiple trials of an experiment?
To make sure their data is correct and not a one time fluke.
100
Name 3 types of graphs
pie graph, bar graph, line graph, histogram, pictograph
100
What is evidence?
Information collected during a scientific investigation
200
A procedure carried out to carefully observe, study, or test something to learn more about it.
Investigation
200
The variable that changes but the scientist does not control
Dependent variable
200
What is the first step to all investigations?
A question
200
What type of graph is best for comparing data
bar graph
200
Observation or inference: The animal is covered in fur
observation
300
An idea or conclusion based on observation
Inference
300
The setup in which nothing is changed and the others are compared to.
Control
300
What are the 3 types of investigations?
Model
Experiment
Observations
300
What is the difference between a dot plot and a pictograph?
One is dots and one is pictures.
300
List 3 observations and 1 inference 
Varies
400
An investigation where all the conditions are controlled and a hypothesis is tested.
Experiment
400
things that stay the same for all tests throughout the experiment
Constants
400
What is the last step to all scientific investigations?
Analyzing data/drawing conclusions
400
What is the best type of graph to use for the following data:
The atmosphere is
78% nitrogen
21% oxygen
.9% argon
.1% other
Pie graph
400
What does it mean to classify? What are 2 ways to classify?
to group things by how they are related. Color, shape, type, pattern, size, characteristics
500
Ways that scientists perform investigations and collect reliable data
Scientific Methods
500
A scientist is testing what kind of music helps students retain more information when they study. The kids study information about a country for one hour with no music and take a test. Then they study different countries for the same amount of time listening to classical music, pop music, country music, and hip hop music.
IV: Type of music
DV: test scores
Control: no music
Constants: length of time
500
List all the steps to completing an experiment
Question
Hypothesis
planning: Variables, materials, procedures
Experiment and record data
Analyze results/draw conclusions
500
What type of graph would be best for the amount of rainfall throughout the year?
Line graph
500
What are the 3 kinds of models
physical, computer, diagrams