Flashcard - Safety and Scientific Investigation

Front

What is an independent variable in an investigation?

Back

The independent variable is the factor that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What is the purpose of an eyewash station?

Back

An eyewash station is used to flush the eyes with water in case of exposure to harmful chemicals.

Front

How long should you flush your eyes with water if exposed to chemicals?

Back

You should flush your eyes with water for a minimum of 15 minutes.

Front

What is a fire blanket used for?

Back

A fire blanket is used for smothering flames when someone’s clothing or hair catches fire.

Front

What is the correct way to use a fire extinguisher?

Back

To use a fire extinguisher, pull the pin, point the nozzle at the base of the flames, and spray using a back and forth motion.

Front

What type of investigation involves changing one variable to see its effect?

Back

An experimental investigation.

Front

What is a descriptive investigation?

Back

A descriptive investigation involves observing and describing the characteristics of a subject without manipulating any variables.

Front

What is a comparative investigation?

Back

A comparative investigation involves comparing two or more groups or conditions to understand their differences.

Front

What should you do if a chemical spill occurs?

Back

You should follow the safety protocols for cleaning up chemical spills, which may include using absorbent materials and notifying a teacher.

Front

What is the role of a school nurse in case of chemical exposure?

Back

The school nurse should examine the eyes or affected area after flushing with water to determine if further treatment is needed.