TEST PRACTICE #1-MATTER & LAB MANAGEMENT

A(n) ________ is a substance where the particles are spread out evenly. Everything looks the same, although it is a mixture.

• element
• homogeneous mixture
• heterogeneous mixture
• compound

How does a physical change differ from a chemical change?

• New properties of matter are observed
• new materials are produced
• the change always involves heat or light
• the composition of matter is unchanged

Objects floating or sinking in water

• density
• solubility
• odor
• flammability 

Which is a compound?

• Air
• Brass
• Wood
• Pure water

Which of the following is a heterogeneous mixture?

• Muddy water
• Milk
• Chlorine
• Salt Water

This measures the amount of matter something contains

• matter
• volume
• mass
• density 

A (n) is a substance where the atoms are all the same kind

• compound
• element
• mixture
• solution

Which of the following signs does NOT indicate that a chemical change has happened? 

• a change in state
• change in color or odor
• foaming or bubbling
• production of heat or light 

This is the amount of space something takes up 

• density
• mass
• volume
• matter 

The change from a solid directly to a gas is called

• evaporation
• boiling
• melting
• sublimation