Description

Conclusion

: a statement that includes a summary of experimental results and if the hypothesis was proven or disproved (CER).

Control group:

the “normal” group; receives no “treatment” and is used as a baseline to compare groups and assess the effect of the “treatment.”

Density

: how tightly packed particles or objects are within a specified space or region.

Dependent Variable

: the variable that changes in response to the other; it depends on another variable for its results.

Experiment

: a scientific procedure that is conducted to make a discovery, test a hypothesis, or demonstrate a known fact.

Fair test:

Change only one factor (independent variable) while keeping everything else the same to ensure results are reliable and that only one factor causes changes.

Graduated cylinder:

a common piece of laboratory equipment used to measure the volume of a liquid with a narrow, cylindrical shape.

Hypothesis:

a prediction about what might occur used as a starting point for further investigation.

Independent Variable:

the variable that is directly manipulated by researchers.

Mass:

the amount of matter in an object.

Metric system:

a system of measurement that uses the meter (distance), liter (volume), and gram (mass) as base units.

Observation:

noticing something occurring using the five senses.

Qualitative data:

data involving observations and descriptions.

Quantitative data:

data involving numbers.

Research:

using reliable sources to obtain background information.

Scientific method:

a process for experimentation that is used to explore observations and answer questions.

Scientific notation:

a way of expressing numbers that are too large or too small to be conveniently written in decimal form.

SI units:

the standard units of measurement defined by the International System of Units (SI) for seven base quantities.

Triple beam balance:

a typical instrument used to measure the mass of various objects.

Volume:

the amount of space that a substance or object occupies