Semester One Exam 7th Grade Honors

Front

What should you do if you do not understand a direction or part of a laboratory procedure?

Back

Ask the teacher before proceeding.

Front

Which form of water has the greatest density?

Back

Liquid water (C) has the greatest density.

Front

What is potassium fluoride (KF)?

Back

A compound of two elements.

Front

What activities are permitted in the laboratory?

Back

None of the above (chewing gum, eating, drinking are not permitted).

Front

What should you do to make sweet tea sweeter?

Back

Start with hot water before adding the tea bag and sugar granules, then stir before adding ice.

Front

What are the three states of water?

Back

Solid (ice), liquid (water), gas (water vapor).

Front

What is the definition of a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is the importance of asking questions in a laboratory setting?

Back

It ensures safety and understanding of procedures.

Front

What happens to sugar when it is added to cold water?

Back

It may not dissolve well, especially if added in large amounts.

Front

What is solubility?

Back

The ability of a substance to dissolve in a solvent.