# Scientific Method

## 21 terms · Middle School Science

### Scientific Method

a series of steps followed to solve problems including collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions

### Observation

An act of noting and recording an event, characteristic, behavior, or anything else detected with an instrument or with the senses.

### Qualitative

observations that describe, sight, sounds, smells, and textures.

### Quantitative

Can be measured, expressed in numbers that include records or time, temperature, mass, distance, and volume

### Prediction

expectation of what will be observed or what will happen.

### Hypothesis

a tentative explanation, educated guess that can be tested. IF, THEN, BECAUSE statement.

### Inferences

logical conclusion drawn from available evidence and prior knowledge. Made from observations.

### Bias

a slanted point of view, or personal prejiduce. Can affect the conclusions of a researcher.

### Analyze

to examine part of something.

### Evaluate

to judge something on the criteria you have established.

### Fact

information that is strictly defined and proved true.

### Opinion

a statement that expresses belief, value, or feeling.

### Data Table

chart to organize and record measurements that you make.

### Line Graph

show relationships between variables. Changes over time.

### Circle Graph

pie chart, data in a circle. Used only when data is expressed in percentages of a whole.

### Bar Graph

lengths of the bars are used to represent and compare data. Numeral scale is used to determine length.

### Experiment

organized procedure to study something.

### Variable

any factor (conditions, relationships) that can be changed.

### Constants

factors that stay the same with control and experiment groups.

### Independent variable

factor that you wish to test and IS manipulated so that it can be tested. Expressed after the word IF in your hypothesis.

### Dependent Variable

variable that changed, factor that you measure. Expressed after the word THEN in your hypothesis.