8th Grade 4th Quarter Benchmark

In a Chemical Reaction if the number of atoms for Carbon in the reactants are 12, how many atoms of Carbon will be in the product?

• 6

• 7

• 12

• 24

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When water freezes, what is happening?

• Gas turning into a solid

• Liquid turning into a solid

• Solid turning into a lquid

• Solid turning in to a gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A student uses colored beads to create the water molecule, H20. Blue beads represent hydrogen and green beads represent oxygen. How many beads will they have for each atom?

• 1 blue 1 green

• 2 green 1 blue

• 2 blue 1 green

• 2 blue 2 green

Tags

NGSS.MS-PS1-1

What happens to the MASS of matter in a chemical reaction?

• Mass stays the same

• Mass Increases

• Mass decreases

• Mass is destroyed

Tags

NGSS.MS-PS1-5

Mass is conserved in a chemical reaction...We know this because the same ______ and ______ appear on both sides of the equation

• atoms

• elements

• atoms, elements

• cells

Tags

NGSS.MS-PS1-5

Iron turning into rust is an example of a chemical reaction because..

• it was a physical change only

• a new substance was formed

• iron and rust are the same substance

• nothing new was created

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

CH4......How many Carbon atoms are there?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

CH3ClO....How many carbon atoms are there?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

CH3C4H8COCH3.........How many carbon atoms are there?

• 3

• 4

• 6

• 7

Tags

NGSS.MS-PS1-1

In order to make the best container to keep drinks the coldest/hottest, the most important factor in the design would be?

• The type of lid

• The temperature of the starting liquids

• The type of liquid used

• The type of insulation used for the container

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-PS3-3