Two jars are placed inside an insulated box. One jar contains ice water and the other contains hot soup. What will happen to the two liquids? 

• Both the hot soup and the ice water will gain heat. 
• Both the hot soup and the ice water will lose heat. 
• The hot soup will gain heat, and the ice water will lose heat. 
• The hot soup will lose heat, and the ice water will gain heat.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? 

• The hot water causes a chemical reaction to take place in the spoon. 
• The hot water heats the air surrounding the upper part of the spoon. 
• The heat from the hot water is conducted to the spoon handle. 
• The hot water causes a physical change in the spoon handle.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Paper burning is a __________________ change. 

• physical
• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Dry ice (solid carbon dioxide) turning into carbon dioxide gas is a 

• physical change
• chemical change

Tags

NGSS.MS-PS1-4

Which of the following occurs when a liquid becomes a gas? 

• The particles give off energy. 
• The particles break away from one another. 
• The particles move closer together. 
• The particles slow down. 

Tags

NGSS.MS-PS1-4

If you poured two liquids (that do not mix completely) into a beaker, how could you tell which one is the densest liquid? 

• The liquid that is floating on top is the densest liquid. 
• The liquid that settles to the bottom is the densest liquid. 
• The liquid with the red color is the densest liquid. 
• There is no way to tell which liquid is densest from the description.

Which of these phrases describes the results of a chemical change? 

• charred wood, ash, and smoke 
• salt dissolving in water 
• gold nuggets melting 
• a dented car door

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

An iron nail rusting is a _______________ change. The ________________ property of reactivity explains the iron’s ability to form a new substance. 

• physical, physical            
• physical, chemical 
• chemical, chemical 
• chemical, physical 

Tags

NGSS.MS-PS1-5

Dissolving Kool-Aid into water is an example of a 

• physical change              
• chemical change

Which of the following is a chemical property of matter? 

• solubility 
• volume 
• density 
• flammability