Science - Chapter 2

Scientific Experiments

Procedure

A step-by-step list of how to carry out the experiment

Control

A trial where all variables are held constant

Constants

all the variables in an experiment that remain the same

What is an Independent Variable?

The variable that you change in an experiment on purpose

What is an Dependent Variable

The variable that is influenced by the independent variable

How do Tables present data?

In rows and columns

How do Line Graphs present data?

By showing the relationship between two variables

How do Scatter Plots present data?

By showing the relationship between two sets of data

How do Bar Graphs present data?

By using rectangles of different heights.

What is another name for Pie charts?

Circle Graph

What is the branch of science that studies design, building, etc.?

Engineering

What are the four major branches of Engineering?

Mechanical, Chemical, Civil, & Electrical

Design Specs

The requirements that an engineer must fulfill in his or her design

Constraints

Restrictions or limitations

Prototype

A preliminary model that can be easily adjusted