Exploring the Concepts of Density and Mass

What is the first step in measuring the mass of water?

• Fill the beaker with water

• Find the mass of the empty beaker

• Use a graduated cylinder

• Subtract the mass of the beaker from the water

How do you find the mass of just the water?

• Measure the volume of water

• Subtract the mass of the empty beaker from the filled beaker

• Add the mass of the beaker and water

• Use a graduated cylinder

What is the density of water?

• 0.5 grams per milliliter

• 2 grams per milliliter

• 1 gram per milliliter

• 0.1 grams per milliliter

What tool is used to measure the volume of water?

• Beaker

• Thermometer

• Graduated cylinder

• Scale

How is density calculated?

• Mass multiplied by volume

• Mass plus volume

• Volume divided by mass

• Mass divided by volume

What happens to objects with a density greater than one when placed in water?

• They dissolve

• They sink

• They remain suspended

• They float

If a block has a density of 0.1, what percentage of it will be below the water line?

• 90%

• 10%

• 50%

• 100%

What is the relationship between density and the position of a block in water?

• Density does not affect the position

• Higher density means more of the block is below water

• Higher density means more of the block is above water

• Lower density means the block will sink

Why does ice float on water?

• Because it is heavier than water

• Because its atoms are more tightly packed

• Because its atoms are less tightly packed

• Because it has more atoms

What happens to the atoms in water when it freezes?

• They become more tightly packed

• They expand and create more space between them

• They dissolve

• New atoms are added