Science Grade 6 - Chapter 3.3, 4.1, 4.2 - Quiz

A water molecule is shown below.

What are the elements that make up the molecule?

• Hydrogen

• Nickle

• Air

• Oxygen

A water molecule is shown below.

What is the chemical formula of water? Choose the answer.

• H20

• H202

• C02

• HO

Sugar is made of a molecule called sucrose. The chemical formula of sucrose is shown below.

The number of carbon atoms in the molecule is _____?

• 12

• 22

• 11

• 5

Sugar is made of a molecule called sucrose. The chemical formula of sucrose is shown below.

The number of nitrogen atoms in the molecule is _____?

• 12

• 22

• 11

• 0

A comparison between hydrogen peroxide and water is shown in the table below.

What are the elements that make up the two compounds?

• Hydrogen

• Oxygen

• Helium

• Nitrogen

Which chemical formulas represent compounds?

• H20

• 02

• H2

• C

• NaCl

Four cups of water have the same temperature are shown below. Select the cup that contains water with the greatest amount of thermal energy.

• A

• B

• C

• D

select the event described by the rise of warm air and fall of cool air above hot sand.

• Radiation

• Convection

• Conduction

• insulation

• absorbtion

Fill in the blank with the correct term.

a. The transfer of thermal energy through the movement of molecules within a fluid is ______________.

• radiation

• convection

• conduction

• warmer

• cooler

Fill in the blank with the correct term.

b. Heat causes a fluid to expand and become less __________ than the cooler parts of the fluid.

• radiation

• convection

• conduction

• warmer

• dense