# Process skills for science

## 28 terms

### Observing

Using one or more of your senses to gather information

### Qualitative Observation

Doesn't involve numbers or measurements
Are precise and factual

### Quantitative Observation

Descriptions using numbers
Involves counting or measurement

### Inference

Explanations of events based on observation.
Can have more than one. Are logical and tentative

### Prediction

Making a forecast of what will happen in the future based on past experience or evidence

### Hypothesis

A possible explanation for a set of observations to a scientific question

### Variable

Anything that can change or vary in an experiment

### Manipulated Variable (MV)

A factor changed on purpose by the experimenter.

### MV also known as

the independent variable (IV).

### Responding Variable (RV)

A factor expected to change because of the manipulated variable.

### RV also known as

the dependent variable (DV)

### RV

is what the experimenter will measure and record.

### Constants

The factors that are kept the same in an experiment.
The more constants in an experiment, the better to determine the effect of the MV.

### Controlled Experiment

An investigation in which all variables but one remain the same

meter (m)

### Force

amount of push or pull on an object

Newton (N)

### Weight

amount of pull due to gravity

Newton (N)

### Volume

amount of space an object takes up

### Standard for Volume

liter (L)/cubic centimeter (cm3) or cc

### Temperature

measure of motion of matter particles

### Standard for Temperature

degrees Celsius (*C)

### Estimate

An approximation of a number based on a reasonable assumption

guessing

### Accuracy

How close a measurement is to the true value

### Precision

How close a group of measurements are to each other

### Mean

Numerical Average
= Sum of Values divided by the Total number of Values