Water Unit Test

Mr. Gill cooked a meatloaf in his oven for about an hour, and just before the meatloaf was done in the oven, he boiled hot water for tea. The meatloaf cooled down shortly after Mr. Gill took it out of the oven, but the pot of boiling water took at least a half-hour to cool down. Why?

• Water can create heat energy & releases it quickly.

• Water can contain heat energy & releases it quickly.

• Water can contain heat energy and releases it slowly.

• Water can create heat energy and releases it slowly.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is the freezing point of water?

• 25 degrees Celsius

• 0 degrees Celsius

• -10 degrees Celsius

• 5 degrees Celsius

Tags

NGSS.MS-PS3-4

What is the boiling point of water?

• 60 degrees Celsius

• 75 degrees Celsius

• 100 degrees Celsius

• 90 degrees Celsius

Tags

NGSS.MS-PS1-4

The use of __________________ gives farm crops a more reliable source of water.

• Precipitation

• Hydroelectric power

• Irrigation

• Tidal energy

The water molecule has electrically-charged areas causing the molecules to "stick together" is called __ molecule.

• icy

• sticky

• polar

Water is the _______ solvent because most substances will dissolve in water.

• university

• universal

• united

Part of a solution that is in a greater amount is the __.  (Hint:  WATER)

• solute

• solution

• solvent

Which of the follow temperatures shows water in the liquid phase?

• 30 degrees F

• 0 degrees C

• 39 degrees F

• -5 degrees C

Tags

NGSS.MS-PS1-4

What is NOT a property of water?

• Water sinks when it freezes.

• Water has high surface tension.

• Water has a high temperature range as a liquid.

• Water floats when it freezes.

Which of the following substances will NOT dissolve in water?

• oil

• sugar

• salt

• hydrogen peroxide