6th Grade Science 1st Semester Exam Review

A material that allows electricity to flow through it is called a _____________.

• conductor

• insulator

• plastic

• rubber

A material that does NOT allow electricity to flow is called an _______________.

• insulator

• conductor

• semiconductor

• transistor

A shiny, malleable, good conductor is a _______________.

• metal

• plastic

• wood

• glass

Water has a density of ________.

• 1 g/mL

• 0.5 g/mL

• 2 g/mL

• 10 g/mL

Objects with __________ density float.

• lower

• higher

• equal

• zero

If an object sinks, its density is _______.

• greater than water

• less than water

• equal to water

• cannot be determined

The least dense substance in a mixture will ________________________.

• float to the top

• sink to the bottom

• dissolve completely

• remain unchanged

Physical properties include ____________, ____________, ____________, ____________.

• color, shape, size, texture

• mass, volume, density, boiling point

• weight, taste, smell, flexibility

• hardness, solubility, luster, magnetism

Chemical properties include ability to ____________ or react with ____________.

• burn, acid

• freeze, water

• melt, oxygen

• evaporate, salt

4. Chemical Change Indicators Two signs: ____________ and ____________.

• color change, gas production

• temperature decrease, melting

• size increase, dissolving

• freezing, condensation

Tags

NGSS.MS-PS1-2