Hydrometer Experiment Quiz

What is the primary purpose of using a hydrometer in experiments?

• To measure the temperature of liquids

• To assess the density of different liquids

• To calculate the pH level of solutions

• To determine the flow rate of gases

Which material is used to seal one end of the straw in the hydrometer experiment?

• Tape

• Rubber band

• Modeling clay

• Glue

In fresh water, how high does the hydrometer float?

• 1 inch

• 2 inches

• 0.5 inches

• 1.5 inches

What is the significance of an egg floating in salt water during the experiment?

• It means the water is too cold

• It indicates the water is too hot

• It suggests the water is contaminated

• It shows the water is salty enough

Why does the hydrometer float higher in salt water compared to fresh water?

• Salt water is less dense than fresh water

• The hydrometer expands in salt water

• The hydrometer absorbs salt, making it lighter

• Salt water is more dense than fresh water