W&W Investigation 3 Convection

A group of students were asked to layer four solutions that were made with water and the same dissolved solid. They recorded data in the table below to describe the volume and mass of each solution. What is the density of Solution A?

• 0.8

• 1.25

• 1.175

Tags

NGSS.MS-PS1-2

A group of students were asked to layer four solutions that were made with water and the same dissolved solid. They recorded data in the table below to describe the volume and mass of each solution. What is the density of Solution B?

• 0.571

• 1.17

• 1.75

Tags

NGSS.MS-PS1-2

A group of students were asked to layer four solutions that were made with water and the same dissolved solid. They recorded data in the table below to describe the volume and mass of each solution. What is the density of Solution C?

• 1.175

• 0.85

• 1.45

Tags

NGSS.MS-PS1-2

A group of students were asked to layer four solutions that were made with water and the same dissolved solid. They recorded data in the table below to describe the volume and mass of each solution. What is the density of Solution D?

• 0.69

• 1.175

• 1.45

If you were to layer these solutions (A, B, C, D) in a straw (as you did in class), in what order would you put them in the straw so they wouldn't mix immediately?

• A, B, C, D

• D, C, B, A

• D, B, A, C

• B, D, A, C

Tags

NGSS.MS-PS1-2

You have been developing a particle model of fluids and what happens when thermal energy is added or removed. use this model to consider the statements below. Select True if the completed statement is true; Select False if the completed statement is false.

When thermal energy is added to a fluid, the motion of the particles speeds up.

• True

• False

Tags

NGSS.MS-PS1-4

You have been developing a particle model of fluids and what happens when thermal energy is added or removed. use this model to consider the statements below. Select True if the completed statement is true; Select False if the completed statement is false. When thermal energy is added to a fluid, the particles in the fluid move farther apart.

• True

• False

Tags

NGSS.MS-PS1-4

You have been developing a particle model of fluids and what happens when thermal energy is added or removed. use this model to consider the statements below. Select True if the completed statement is true; Select False if the completed statement is false. When thermal energy is added to a fluid, there are fewer collisions among the particles.

• True

• False

Tags

NGSS.MS-PS1-4

You have been developing a particle model of fluids and what happens when thermal energy is added or removed. use this model to consider the statements below. Select True if the completed statement is true; Select False if the completed statement is false. When thermal energy is added to a fluid, the particles increase in size.

• True

• False

Tags

NGSS.MS-PS1-4

A group of students are investigation what happens when you put different temperatures of water together. in this investigation, they have set up a vial of colorless room-temperature water and are adding purple hot water at the bottom of the vial, using a pipette.

What do you predict happens in the first 5 seconds?

• A) The hot water stays at the bottom of the vial.

• B) The hot water mixes all through the vial.

• C) The hot water moves toward the top of the room-temperature water.

• D) The hot water mixes with the bottom half only of the room-temperature water.

Tags

NGSS.MS-PS1-4