Unit 1 Study Guide

Match the following

• Gas

• assumes the shape of the part of the container from the bottom up

• Solid

• charged particles that do not have a definite shape or volume

• Plasma

• takes the shape and volume of an entire container

• Liquid

• has a fixed volume and shape

Tags

NGSS.MS-PS1-4

The image shows particles flowing by each other. Which state of matter is most likely represented in the image?

• Solid

• Liquid

• Gas

• Plasma

Tags

NGSS.MS-PS1-4

Polly did an experiment with marbles in a glass bowl to show the movement of particles in solids, liquids and gases. The experimental set up is shown in the picture. What should Polly do to represent the particles of a solid?

• Pack the bowl with marbles and then tap it gently.

• Add two more marbles to the bowl and then shake it slowly.

• Take out two marbles from the bowl and then shake it vigorously.

• Add water to the bowl so that the marbles start sliding past one another.

Tags

NGSS.MS-PS1-4

Describe what happens to the particles in a chocolate bar as it melts.

• As the chocolate bar changes from a solid to a liquid a chemical change happens.

• As the chocolate bar changes from a solid to a liquid the particles slow down.

• As the chocolate bar changes from a solid to a liquid the particles move around more.

• As the chocolate bar changes from a solid to a liquid, the particles move the same speed but they take on the shape of their container

Tags

NGSS.MS-PS1-4

____properties can only be observed when one substance changes into a new substance.

Tags

NGSS.MS-PS1-2

Cooking or baking food results in a __ change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

A melting ice cub is a __ change.

Tags

NGSS.MS-PS1-4

Choose all of the physical changes:

(There are THREE)

 

• tarnish

• melt

• react

• dissolve

• bend

Choose all of the chemical changes:

(There are THREE)

• rust

• burn

• dissolve

• tarnish

• break

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Check all of the indicators that a chemical change has occurred: 

• bubbles or fizzes

• temperature change

• unexpected color or odor change.

• change in state

• formation of a precipitate

Tags

NGSS.MS-PS1-2