SOL Review - PS. 3 a & b

Which of the following is a physical property of a pure substance?

• Melting point

• Reactivity with oxygen

• Ability to form new compounds

• Energy released during a chemical reaction

Tags

NGSS.MS-PS1-4

What type of change occurs when water freezes?

• Chemical change

• Physical change

• Atomic change

• Nuclear change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

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

• Cutting paper

• Melting ice

• Rusting of iron

• Dissolving sugar in water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happens to the particles of a substance during a physical change?

• They combine with other particles

• They break apart

• They rearrange without forming new substances

• They disappear

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

During a chemical change, what happens to the energy of the system?

• It always increases

• It always decreases

• It can increase, decrease, or remain the same

• It always remains the same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the best way to identify a pure substance?

• By its color

• By its shape

• By its unique set of properties

• By its mass

Which of the following is true about pure substances?

• They can only undergo physical changes

• They can only undergo chemical changes

• They can undergo both physical and chemical changes

• They cannot undergo any changes

Tags

NGSS.MS-PS1-4

What happens to the molecular structure of a substance during a chemical change?

• It remains exactly the same

• It rearranges to form new substances

• It changes temporarily but returns to its original state

• It disappears completely

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happens to the chemical composition of a substance during a physical change?

• It changes completely

• It remains the same

• It partially changes

Tags

NGSS.MS-PS1-4

Which of the following would be evidence that a chemical change has occurred?

• change in size
• change in state
• new substance formed
• change in shape

Tags

NGSS.MS-PS1-2