7th Grade Unit #2 Assessment Interaction of light and matter

Front

Materials that allow light to pass through but not all of it are ___________.

Back

Translucent

Front

Which type of material allows light to pass through easily?

Back

Transparent

Front

An example of a translucent object is ___________.

Back

Ice cube

Front

The outcome variable in an experiment is also known as the ___________ variable.

Back

Dependent variable

Front

In an experiment, the variable that is changed or controlled is called the ___________ variable.

Back

Independent variable

Front

Materials that do not allow light to pass through are ___________.

Back

Opaque

Front

What is the main purpose of a controlled experiment?

Back

To isolate the effect of one variable by keeping others constant.

Front

What is the term for the process of observing and recording data in an experiment?

Back

Data collection

Front

In Christy's investigation, what would improve the reliability of her results?

Back

Putting the same kind of food in both bird feeders.

Front

What is the main factor that Colleen is changing in her plant watering experiment?

Back

The frequency of watering.