The Nature Of Science and Science Equipment

What are the steps of the scientific method?

1. problem 2. hypothesis 3. procedure 4.analyze 5.conclusion

What is a hypothesis?

An educated guess

What is a controlled experiment?

experiment in which only one variable is changed

What is a variable?

any factor in an experiment that can be changed or tested.

What is an independent variable?

factor in an experiment that a scientist changes

What is a dependent variable?

The variable that changes as a result of changing the independent variable

What is a fixed variable?

variable that does not change

What is a control?

An experiment that you compare your results to

What is an observational experiment?

a study where the researcher does not control any variable, but observes as they naturally exist.

What is modelling?

Models are used to carry out experiments that can't be carried out in real life

What should a reliable method be like?

It should be reproducible and repeatable.

What is data?

The information, measurements or observations gathered in an experiment

What can data be?

quantitative or qualitative

Quantitative

Data that is in numbers

Qualitative

Data in the form of words

Beaker

used for holding substances or heating substances

Graduated cylinder

used to measure the volume of liquids

Test tube

used for holding substances

Funnel

used when pouring liquids into a small opening

Burette

Used to measure the volume of a liquid

Bunsen burner

used to heat things

Conical flask

used to hold liquids

Tongs

used to hold objects

Thermometer

used to measure temperature

Crucible

used to hold substances while burning them

Flasks

used to hold liquids

Evaporating dish/basin

used for drying substances

Tripod stand

used to support objects being heated over a Bunsen burner

Retort stand

used to hold objects

Liebig condenser

used to change a hot gas back into a liquid

Opisometer

used to measure crooked lines

Pipette

used to take a definite volume of liquid from one place to another

Gas jar

used to hold a gas after it's made

Pipe-clay triangle

used to support a crucible on a tripod stand

Wire gauze

used to support a beaker on a tripod stand

Balance

used to measure the mass of an object