Safety, Equipment, and Scientific Concepts Quiz

Which piece of equipment is used for grinding solids into a powder?

• Beaker

• Mortar and pestle

• Pipette

• Funnel

What is the primary use of a graduated cylinder?

• Making precise volume measurements of liquids

• Transferring liquids

• Performing small chemical reactions

• Heating liquids

Which equipment is used for transferring liquids in small precise amounts?

• Watch glass

• Beaker tongs

• Spatula

• Pipette

What is the function of a Bunsen burner?

• Measuring mass

• Transferring solid chemicals

• Heating chemicals with a gas-powered flame

• Preventing splattering

What does the term 'meniscus' refer to?

• A method of heating

• A curve in a liquid in a graduated cylinder

• A type of measurement

• A type of flask

What is the definition of accuracy in measurements?

• The curve in a liquid

• The degree to which the experimental result agrees with the accepted value

• The degree to which measurements agree with one another

• The method of transferring liquids

What is a hypothesis?

• An explanation based on evidence

• A testable prediction that attempts to answer a question

• A subjective guess about an observation

• A description of how things happen in nature

What is the role of a control group in an experiment?

• The group that is being tested and purposefully changed

• The group where variables are altered

• The group that measures the dependent variable

• The normal group used for comparison

What is the purpose of a watch glass?

• To measure mass

• To prevent splattering when used as a lid on a beaker

• To transfer liquids

• To grind solids

What is the definition of precision in measurements?

• The degree to which the experimental result agrees with the accepted value

• The degree to which measurements agree with one another

• The curve in a liquid

• The method of transferring liquids