Grade 8 Physical Sciences - Laboratory Equipment, Rules & Scientific Method

Vocabulary flashcards for laboratory rules, equipment, and scientific methods.

Laboratory Rule

Learners may not enter the laboratory without the educator’s permission.

Laboratory Rule

Do not drink or taste any substance in the laboratory.

Beaker

Measuring and pouring liquids.

Bunsen burner

Heating substances safely in the lab.

Test tubes

Holding substances for heating, mixing, or observation .

Test tube rack

Holding up the test tubes.

Tripod

Holding beakers over a Bunsen burner.

Measuring cylinder

Measuring different quantities of liquid.

Pipette

Measuring a specific quantity of liquid.

Burette

Measuring liquid accurately.

Funnel

Filtering and separating mixtures.

Retort stand

Holding glassware.

Round bottom flask

Mixing liquids and holding liquids while heating them evenly

Scalpel

Dissection and separation.

Watch glass

Observation.

Petri dish

Observation.

Tongs

Holding glassware.

Beehive stand

Support for a gas jar to collect gas in water

Volumetric flask

Used for precise dilutions and preparation of standard solutions.

Investigative question

An investigative question isformulated based on observations made and sums up what the investigation is all about and ends in a question mark.

Aim

An aim often starts with the word “To…”.

Hypothesis

A hypothesis is an educated guess and prediction that statesthe possible outcome of the investigation. It is not a question.

Independent Variable

The variable that is manipulated (changed) by the experimenter.

Dependent Variable

The variable that changes as a result of the changes made to the independent variable.

Controlled variables

The variables that are kept constantthroughout the investigation ensuring that a fair test is being carried out