# SOL 5.1 5th grade Scientific Investigation

## 25 terms

### hypothesis

the step in the scientific method in which the experimenter speculates what the outcome of an experiment will be; an educated guess about what will happen in the experiment

### prediction

a forecast about what will happen in a future situation based on past experiences and the evidence given

### experiment

the part of the scientific method used to test a hypothesis

### variables

the factors in an experiment that can change

### constant of an experiment

the conditions in an experiment which are not allowed to change in order to have a fair test; the condition or conditions that stay the same in an experiment

### manipulated (independent) variable

the variable in an experiment which is CHANGED by the experimentor

### responding (dependent) variable

the variable in an experiment which changes in response to the manipulated (independent) variable

### data (results)

information gathered during an experiment

### classification key

a tool used for organizing objects and organisms by sorting them into categories according to their similarities and differences. It consists of branching choices organized into levels

### descriptive data

qualitative data using observations

### numerical data

quantitative data using measurements

### inference

using prior information based on past experiences to generate conclusions about observations: example: I can "infer" that the moon will rise tonight because it has risen every other night in my experience.d

### conclusion

the final answer to the problem in an experiment; will answer whether or not the data supports the hypothesis

### balance

a scientific instrument used to measure the mass of an object.

### grams

a metric unit of the measurement of mass. 1000 grams=1 kilogram. a paper clip weighs about 1 gram

### mass

the amount of matter in an oject. Measured with a balance

### matter

all things have mass and volume

### centimeters

a unit of measurement of length 100cm=1m one centimeter is about the size of a small salad crouton

### kilometers

a unit of metric measurement of length: 1000m=1km. a kilometer is about 6/10 of a mile, so a little more than half of a mile

### kilograms

a metric unit of the measurement of mass. 1000g=1kg

### meters

a unit of measurement of length. it is measured with a meter stick

### millimeters

a small unit of metric measurement of length. 1000mm=1meter. A millimeter is about the size of the thickness of your thumbnail

### volume

the amount of space that matter takes up

### temperature

the amount of hotness or coldness as measured by a thermometer.

### degrees Celsius

a metric unit of temperature. it is measured with a thermometer.