Physical Science Review

Which state of matter has a definite shape?

• Solid
• Liquid
• Gas
• All of the above.

Tags

NGSS.5-PS1-3

How does water particles behave when they are in the gaseous state? 

• They move around very slowly
• They are packed together very tightly.
• They move quickly and freely.
• They do not move at all.

Tags

NGSS.MS-PS1-4

How do you know if a physical change has occurred?   

• A new substance has been created.
• A change has been made on a molecular level.
• A change has occurred in the size, shape, or state of matter.
• None of the above.

Select the element that is a nonmetal

• N

• Cu

• Ni

• Na

Ice melting is an example of ________

• A chemical change.
• A physical change.
• No change has occurred.
• A new substance being formed.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-2

Which of the following is an example of a chemical change?

• Ice melting.
• Steam leaving a hot tub.
• A nail rusting.
• Water freezing into ice.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is matter?

• Volume of an object
• Anything that has mass and takes up space
• Mass of an object
• Space of an object

Burning and baking are examples of __________________ because they are irreversible.

• chemical changes
• physical changes
• melting
• freezing

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Cutting and mixing are examples of ______________________ because they are reversible.

• chemical changes
• physical changes
• freezing
• melting

the smallest unit of matter is called

• at atom
• a molecule
• a compound
• a pure substance