Final Exam Spring 2024

Why did the sand separate from the water after being left undisturbed in a container?

• Sand particles are denser than water.

• Water is a liquid and sand is a solid.

• The sand was insufficiently stirred.

• There was more sand than water.

Tags

NGSS.MS-PS1-2

What is the formula for density?

• Density = Mass / Volume

• Density = Mass x Volume

• Density = Volume / Mass

• Density = Mass + Volume

What is the density of a metal piece with a volume of 6 cm³ and a mass of 36g?

• 24 g/cm³

• 6 g/cm³

• 36 g/cm³

• 216 g/cm³

Which observation indicates a chemical change?

• The metal is bendable.

• A Liquid is clear and colorless.

• Gas bubbles form in the test tube.

Tags

NGSS.MS-PS1-2

What happens to the molecules of liquid water as it starts to freeze?

• They move more freely.

• They increase in size.

• They decrease in speed.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens to the volume of a balloon when the temperature in the air decreases?

• The volume of the balloon increases.

• The volume of the balloon decreases.

• The volume of the balloon remains the same.

Tags

NGSS.MS-PS1-4

Select all of the terms that identify a part of an atom.

• Proton

• Isotope

• Nucleus

• Electron

• Molecule

Tags

NGSS.MS-PS1-1

What does the 8 represent in the periodic table for Oxygen?

• Atomic number

• Atomic mass

• Chemical symbol

• Number of valence electrons

Tags

NGSS.MS-PS1-1

What does the "O" represent in the periodic table for Oxygen?

• Atomic number

• Atomic mass

• Chemical symbol

• Number of valence electrons

Tags

NGSS.MS-PS1-1

What does the 15.999 represent in the periodic table for Oxygen?

• Atomic number

• Atomic mass

• Chemical symbol

• Number of valence electrons

Tags

NGSS.MS-PS1-1