Properties of Matter Test Review

A student dropped a bolt into a container of maple syrup. It sank to the bottom. The student then tried to remove the bolt with a strong magnet, but it did not move. Which of the following best describes the bolt's physical properties?

• the bolt is magnetic, but the syrup is stronger

• the bolt is nonmagnetic and is more dense than the maple syrup

• the bolt is magnetic but has the same density as the syrup

• the bolt is nonmagnetic and is less dense than the syrup

According to this table, which two samples could be the glass and the saltwater? (Choose 2 answers)

• Sample 1

• Sample 2

• Sample 3

• Sample 4

Which two objects are most likely MORE dense than water? (Choose 2 answers)

• plastic ball

• glass marble

• metal paper clip

• wood block

Answer explanation

If we put a glass marble or a metal paperclip in a beaker of water, they would SINK to the bottom.

SINK = MORE DENSITY

Which two objects from this list would most likely be LESS dense than water? (Choose 2 answers)

• plastic ball

• glass marble

• metal paper clip

• wood block

Answer explanation

Just like this log, a wood block and a plastic ball would both FLOAT on water; therefore they are LESS DENSE than water!

Fill in the blank:

If an object is _______ dense than water, then it will _________

• less, sink

• more, float

• more, sink

• less, more

Fill in the blank:

If an object is _______ dense than water, then it will ______.

• less, float

• less, sink

• more, float

• sink, float

States of matter (gas, liquid, solid) can be changed simply by either adding or subtracting

• thermal energy

• shapes

• cats

• air

Answer explanation

Thermal energy is the scientific way of saying heat. If you subtract heat from a liquid, it becomes a solid. If you add heat to a liquid then it becomes a gas.

Shelly bought some powder drink packets. She added some to a glass of water. She set the glass by a window and left it for a week. When she came back, nothing was left but dried up powder crystals. What caused this?

• The water evaporated leaving the drink powder behind

• someone came and drank all the flavored water

• the drink powder evaporated leaving only water in the glass

All metals are conductors and all metals are magnetic.

• TRUE

• FALSE

Answer explanation

FALSE: Only 3 metals are magnetic: iron, nickel and cobalt.

The ability to conduct electricity

• conductivity

• insulation

• band directors

• trains