Science Quiz

Which best describes a heterogeneous mixture?

• It contains only one type of atom.

• It is composed of two or more elements in a fixed pattern.

• It contains two or more types of particles which are easily distinguished.

• It is composed of two or more substances in which particles are evenly blended.

How many more atoms does hydrogen peroxide (H₂O₂) have than water (H₂O)?

• one

• two

• three

• four

Tags

NGSS.MS-PS1-1

In order to form water, two hydrogen atoms and one oxygen atom must be

• mixed.

• divided.

• bonded.

• dissolved.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Structural differences between different chemicals can be represented in models of the particles. Which drawing best represents a compound?

• Model A

• Model B

• Model C

• Model D

Tags

NGSS.MS-PS1-1

Which best describes water?

• a compound

• an element

• a heterogeneous mixture

• a homogeneous mixture

Tags

NGSS.MS-PS1-1

When potassium and bromine atoms form chemical bonds, which of these is produced?

• an element

• a mixture

• a compound

• a new form of matter

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Which is a compound?

• Nitrogen (N₂)

• Neon (Ne)

• Ozone (O₃)

• Ammonia (NH₃)

Tags

NGSS.MS-PS1-1

Which is a substance that is held together by chemical bonds?

• element

• compound

• mixture

• solution

Which two elements make up household ammonia?

• neon and helium

• neon and hydrogen

• nitrogen and helium

• nitrogen and hydrogen

Tags

NGSS.MS-PS1-1

Which substance is a compound?

• orange juice

• salt water

• hydrogen

• water

Tags

NGSS.MS-PS1-1