8th Grade Science Review

Mass is measured in

• grams
• liters
• meters
• g/cm3

What is the volume of the two red beads?

• 2.4 cm³

• 4 cm³

• 6 cm³

• 2 cm³

Is burning wood a chemical or physical change?

• chemical
• physical

Is glass breaking a chemical or phyiscal change?

• chemical
• physical

Is melting ice a chemical or physical change?

• chemical
• physical

NaHCO₃ is an example of —

• an abbreviation
• a compound
• a mixture
• an element

A substance made of only one type of atom is called —

• an element
• a mixture
• a compound
• a salt

What is an example of a mixture?

• Table salt (NaCl)

• Cobalt (Co)

• Oxygen (O)

• Air

Pure water has a pH of 7. Pure water _______.

• is a base
• is a neutral substance
• could be either an acid or a base
• is an acid

Which is the stronger acid?

• pH 1
• pH 4
• pH 8
• pH 13