Physical and Chemical changes and Matter

What is an example of a Chemical change?

• Ripped paper 
• boiled egg
• cracked egg
• sugar in water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which is a Chemical property?

• Thermal Conductivity 
• Density
• Malleability 
• Flammability 

Tags

NGSS.HS-PS1-2

Which is a physical change?

• burning match 
• vinegar in baking soda 
• melting butter
• cooking an egg

Which of the following is a chemical property of water?

• Reacts with pure sodium.
• Boils at 100 ^oC.
• Dissolves sugar easily. 
• Has a density of 1 gm/mL

What kind of properties can only be observed when a substance changes into a different substance?

• physical properties
• chemical properties
• liquid properties
• real properties

Tags

NGSS.MS-PS1-2

the ability to conduct electricity?

• physical property
• chemical property
• physical Change
• chemical change

Tags

NGSS.MS-PS2-3

Which of the following is a sign that a chemical reaction has occurred?

• change in shape
• melting
• formation of a gas
• dissolving

Tags

NGSS.MS-PS1-2

What characteristic defines all chemical changes?

• There is a change of state.
• Electricity is produced.
• A new material is formed.
• Bubbles are produced. 

Tags

NGSS.MS-PS1-2

What is Thermal Conductivity?

• Thermal Conductivitie
• A therms that conducts electricity 
• How quickly heat gets let through a substance.
• A thermal camera that conducts heat

Tags

NGSS.MS-PS3-3

A brass door knob tarnishes. 

• Chemical change
• Physical change
• chemical property
• physical property

Tags

NGSS.MS-PS1-2