Sophia combines a black liquid and a clear liquid. She observes that the two liquids do not mix. Sophia allows the mixture to settle for 30 minutes.

Which of the statements below best describes the properties of the two liquids?

• The clear liquid is less dense than the black liquid.

• The clear liquid is more dense than the black liquid.

• The volume of the clear liquid is less than the black liquid.

• The volume of the clear liquid is greater than the black liquid.

Tags

NGSS.MS-PS1-2

Which model can be used to represent the movement of particles in a liquid?

• Model 3 because the particles are moving freely.

• Model 1 because the particles are vibrating but keep a definite shape.

• Model 2 because the particles are close together but have no definite shape.

• Model 2 because the particles slide freely past each other and take the shape of the container.

Tags

NGSS.MS-PS1-4

Particles in this state of matter are moving the fastest.

• solid
• liquid
• gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Particles in this state of matter are moving the slowest.

• solid
• gas
• liquid

Tags

NGSS.MS-PS1-4

John fills a graduated cylinder with 50 mL of water. He then drops a 60g key into the graduated cylinder. The water level inside the graduated cylinder rose to 53 mL as shown below.

If Density = Mass / Volume, what is the density of the key ?

• 60 g/mL

• 20 g/mL

• 2.05 g/mL

• 0.05 g/mL

Regardless of size and amount, what physical property of matter will always be the same?

• Mass

• Volume

• Density

• Solubility

Ernesto is given two samples of wood. He needs to determine if the samples are the same type of wood. Which property should Ernesto measure?

• The density because it does not depend on the size of the sample.

• The weight because it does not depend on the size of the sample

• The volume because it will depend on the size of the sample.

• The mass because it will depend on the size of the sample

Ashley wants to compare the solubility of three materials: salt, sand, and flour. She fills three beakers with 500 mL of water each. She then adds the same amount of each solute to the beaker. The picture shows the particles left after mixing.

Based on Ashley’s observations, what statement can she make about the solubility of the three materials?

• Sand is more soluble than salt and flour.

• . Flour is more soluble than salt and sand.

• Sand is the least soluble when compared to flour and salt.

• Salt is the least soluble when compared to flour and sand.

Tags

NGSS.MS-PS1-2

Someone did a classification of several materials into two classes. Classification 1: aluminum foil, copper and salt water; Classification 2: glass, plastic and rubber. Which physical property did the person used to classify the materials?

• Conductivity

• Magnetism

• Solubility

• Density

Isaiah places a wooden, plastic, and metal fork in a bowl of ice. He notices that one of the forks got colder faster. Which fork got colder the fastest and which physical property was he testing?

• A. Metal, and Thermal Conductivity

• A. Wooden, and Thermal Conductivity

• A. Plastic, and Electrical Conductivity

• A. Metal, and Electrical Conductivity

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4