Physical and Chemical

What is the change of state from a solid to a gas?

• transpiration
• evaporation
• sublimation
• thermal contraction

Tags

NGSS.MS-PS1-4

Which of these is not an example of a physical change?

• chopping an onion
• frying an egg
• melting snow
• boiling water

Steel is an example of

• alloy
• solution
• colloid
• suspension

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

Is bleaching your hair a physical or chemical change?

• physical
• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is burning wood a chemical or physical change?

• chemical
• physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A change in the size, shape, or state of matter.

• chemical change
• physical change
• chemical reaction
• electron change

Tags

NGSS.MS-PS1-4

Acids are what range on the pH scale?

• 0-14
• 0-6.99
• 7
• 7.1-14

Bases are what range on the pH scale?

• 0-6.99
• 7
• 7.1-14
• 0-14

When found in food, acids are ________

• Sour
• Bitter
• Salty
• Slippery