6th Grade Science Quiz: Units 1-5

What is the difference between a solid and a liquid in terms of particle arrangement and kinetic energy?

• Solids have particles that are closely packed with high kinetic energy, while liquids have particles that are loosely packed with low kinetic energy.

• Solids have particles that are closely packed with low kinetic energy, while liquids have particles that are loosely packed with medium kinetic energy.

• Solids have particles that are loosely packed with high kinetic energy, while liquids have particles that are closely packed with medium kinetic energy.

• Solids have particles that are loosely packed with low kinetic energy, while liquids have particles that are closely packed with high kinetic energy.

How does a gas differ from a liquid in terms of shape and volume?

• Gases have a definite shape and volume, while liquids have an indefinite shape and volume.

• Gases have an indefinite shape and volume, while liquids have a definite shape and volume.

• Gases have an indefinite shape and volume, while liquids have a definite volume and indefinite shape.

• Gases have a definite shape and indefinite volume, while liquids have an indefinite shape and definite volume.

What is the difference between a homogeneous mixture and a heterogeneous mixture? Give an example of each.

• Homogeneous mixtures have visible boundaries, like salad; heterogeneous mixtures are evenly mixed, like saltwater.

• Homogeneous mixtures are evenly mixed, like saltwater; heterogeneous mixtures have visible boundaries, like salad.

• Homogeneous mixtures have visible boundaries, like oil and water; heterogeneous mixtures are evenly mixed, like air.

• Homogeneous mixtures are unevenly mixed, like sand and water; heterogeneous mixtures are evenly mixed, like sugar in tea.

How can you determine the density of an object?

• By dividing the volume of the object by its mass.

• By multiplying the mass of the object by its volume.

• By dividing the mass of the object by its volume.

• By adding the mass and volume of the object.

Why does an ice cube float in water?

• Because ice is denser than water.

• Because ice is less dense than water.

• Because ice has more mass than water.

• Because ice has less volume than water.

If you have two objects of the same size but different masses, which one will have a higher density?

• The object with the larger mass.

• The object with the smaller mass.

• Both objects will have the same density.

• Density cannot be determined from mass alone.

How does temperature affect the density of water?

• Heating water increases its density.

• Cooling water decreases its density.

• Heating water decreases its density.

• Temperature has no effect on the density of water.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is the density of a substance that has a mass of 20 grams and a volume of 10 cm³?

• 0.5 g/cm³

• 2 g/cm³

• 10 g/cm³

• 30 g/cm³

What are the main characteristics of metals, nonmetals, and metalloids?

• Metals are brittle, nonmetals are ductile, metalloids are lustrous.

• Metals are good conductors, nonmetals are poor conductors, metalloids have intermediate properties.

• Metals are dull, nonmetals are malleable, metalloids are poor conductors.

• Metals are poor conductors, nonmetals are good conductors, metalloids are brittle.

How can you identify a chemical change?

• By observing a change in shape or size.

• By observing the production of a gas, change in temperature, or color change.

• By observing the melting or freezing of a substance.

• By observing the dissolving of a substance in water.

Tags

NGSS.MS-PS1-2