Chemistry Unit

Which of the following describes QUANTITATIVE examples of physical properties?
aka properties of QUANTITY

• Color, shape, smell, taste
• Mass, volume, weight

Physical properties are

• properties that can be observed without changing the identity of the substance
• properties that describe how a substance changes into a completely different substance

Tags

NGSS.5-PS1-3

Which of the following is NOT an example of a physical change?

• crumpled paper
• pencil sharpening
• shrunken clothing
• rust

Tags

NGSS.MS-PS1-2

Is salt dissolving in water a physical or chemical change?

• Physical
• Chemical

Tags

NGSS.MS-PS1-2

Fizzing, foaming, and bright light being produced are all clues of

• Chemical change

• Physical change

A(n) _____ is a unique substance that forms when two or more elements combine chemically.

• element
• compound
• mixture
• all of the above

Which of the following is a compound?

• Air
• Lemonade
• Carbon Dioxide
• Bread

A compound always has the same ___________ in the same proportions (ratio).

• elements
• carbons
• mixtures
• ions

Examples of mixtures include ______________.

• lemonade
• salad dressing
• salt water
• all of these

The following is/are homogeneous mixtures.

• tap water

• peanut and butter sandwich

• steel (carbon and iron)

• sugar water

• carbonated soda/pop