Measures masses of objects

Data that uses numbers to describe what is observed

To evaluate the observations you make you must use__

A prediction about a problem that can be tested is a(n)___

In a controlled experiment there are usually two groups- and experimental group and ____

Which type of bridge is the best type to span short distances

The three branches of science are _____, Earth, and physical

Why do scientists conduct controlled experiments

What should a scientist do first if a hypothesis is NOT supported?

The variable that is changed by changed by the investigator in an experiment is called the ___

In a bridge structure, the area where the gusset plate is attached is also called which of the following?

The variable being measured is the

At the time of the Minneapolis bridge failure, what factors were considered to be possible causes.

Converting from one SI unit to another involves writing correct mathematical __

The ________ ratio provides a measure of a structure's safety

the prefix mega- means

A(n) ________ group is used to study how a change in the independent variable changes the dependent variable

Different factors that can change in an experiment are

Quantitative data use __to describe what is observed in an experiment.

A system of units used by scientists that is based on units of tens

A statement about what will happen next in a sequence of events

The factor measured or observed during an experiment

A logical conclusion based on available information or evidence

The act of watching and recording what occurs

The factor in an experiment that remain the same

The factor in an experiment that is manipulated or changed by the investigator

Either supports or does not support a hypothesis