Definations
ratios of equivalent value
Conversion factor
A testable prediction that predicts the cause and effect relationship between variables
Hypothosis
Length
m
The type of graph is used for showing percentages
Pie graph
What is the dependent variable?
What is being measured, the effect
Subjective, based on opinions or assumptions
Inference
The "cause of an experiment"
Mass
Kg
The best graph to show quantitative vs quantitative data
Line graph
Factors that stay the same in an experiment so that the results are reliable and called...
Constants
Objective, based on information gathered using the five senses
Observation
Quanatative
numerical data
Time
s
3 things that every graph must have
title, X axis label, Y axis Label
A rule of principle that describes how something happens in nature
Law
An explanation of why things or events happen based on knowledge gained from many observations and investigations
Theory
Qualatative
Descriptive data
Temperature
K
What axis does the independent variable go on? How about the dependent variable?
IV- x axis
DV y axis
Precise- are consistent/ specific
Accurate measurements are correct.
Control Group
6 steps of the scientific method
1. Ask a question
2.Do research
3.Create a hypothosis
4.Test a hypothosis
5.analyze the data
6. conclude
Volume
L
If you are going to look at plant growth over time which graph should you use
Line graph
A team of scientists want to test if watching commercials makes kids eat more snacks when watching TV. They gather two groups of elementary school students. The first group watches 2 hours of TV with no food commercials. The second group watches 2 hours of TV with food commercials every 15 minutes. After the scientists record how many goldfish the students ate during the time period.
List the independent variable, dependent variable, control group, and experimental group.
IV = whether or not kids watch food commercials
DV = amount of goldfish eaten
Control group = group without food commercials
Experimental group = group with food commercials