Quarter 1 Unit Test 2 Review

The amount of matter in an object is called what?

• a. balance

• b. element

• c. weight

• d. mass

Tags

NGSS.MS-PS1-5

Mixtures occur when two or more materials are combined and each material keeps its own properties. All of the following are mixtures EXCEPT

• A) Salad

• pizza

• water

• chocolate milk

Which of the following particles combine to form molecules?

• atoms

• protons

• neutrons

• compounds

Tags

NGSS.MS-PS1-1

Most metals are solid at room temperature, malleable, ductile, good conductors of heat and electricity, and react in acids to produce hydrogen gas. Which of the properties mentioned is a chemical property?

• are malleable

• reacts with acids

• solid at room temperature

• are good conductors of heat

Delicious Kook-aid is a common solution enjoyed in the summertime. Which of the following correctly describes this solution?

• Kool-aid mix is the solvent and water is the solute

• Kool-aid mix and water are both solvents in the Kool-aid solution.

• Kool-aid mix and water are both solutes in the Kool-aid solution

• Kool-aid mix is the solute and water is the solvent.

One difference between mixtures and pure substances is that...

• mixtures can be physically separated

• mixtures are made of one type of atom

• pure substances have no chemical bonds.

• pure substances can be physically separated

During a science lab investigating chemical reactions, Mrs. Gray's students placed an antacid tablet in a zip lock bag. They recorded the mass of the tablet, 25 grams, and the bag, 60 grams. Then they carefully added 50 grams of water and quickly sealed the bag. The tablet began to fizz and soon disappeared. The bag was filled with gas. If the total mass of the bag + tablet + water was 135 grams before the reaction, what was the total mass of the bag + liquid + gas after the reaction was completed?

• 60 grams

• 75 grams

• 135 grams

• 270 grams

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Suppose you are adding energy to the material. What change of state is represented by line segment A?

• Boiling

• condensing

• Freezing

• Melting

Tags

NGSS.MS-PS1-4

Suppose you were removing energy from a material. What change of state is represented by line segment A?

• boiling

• condensing

• freezing

• melting

Tags

NGSS.MS-PS1-4

In this state of matter particles are vibrating in place.

• solid

• liquid

• gas

• plasma

Tags

NGSS.MS-PS1-4