Vocabulary - Surface Tension And Bubbles printable pdf download

Vocabulary - Surface Tension And Bubbles

Name

Date

Vocabulary

STUDENT RESOURCE 6.1

INFORMATION SHEET

constant a factor that doesn’t change in

independent variable the factor in an

an experiment

experiment that is changed

Suppose you do an experiment

In the plant experiment, the

to ﬁ nd out the effect of water on the

independent variable is the amount of

growth of plants. The only factor you

water the plants receive. This factor is

would change in the experiment would

the only one that changed during the

be the amount of water the plants

experiment.

receive. All other factors, such as the

surface tension the force acting on the

amount of sunlight the plants receive,

molecules at the surface of a liquid that

the original size of the plants, and the

causes the liquid to form rounded drops

type of soil the plants are grown in,

Surface tension is a force between

must stay the same, or constant.

molecules. It is what allows some insects

dependent variable the variable that

to move across the surface of a pond

changes as a result of changing the

without falling in.

independent variable in an experiment

In the plant experiment described

above, the dependent variable is

the height of the plant at the end of

the experiment. This factor changes

according to how the independent

variable (the amount of water) changes.

CHEMISTRY • SECTION 6 SURFACE TENSION AND BUBBLES •

Vocabulary - Surface Tension And Bubbles