Physical And Chemical Changes Question Preview (ID: 57443)


Identifying Physical And Chemical Changes. TEACHERS: click here for quick copy question ID numbers.

What is the term for combining 2 or more DIFFERENT atoms together?
a) atoms
b) molecules
c) elements
d) compound

Kool Aid is classified as:
a) element
b) homogeneous
c) heterogeneous
d) compound

Combination of two or more substances that are not chemically combined.
a) mixture
b) solvent
c) solution
d) solute

What type of substance is milk?
a) compound
b) heterogeneous mixture
c) homogeneous mixture
d) element

What type of mixture is chichen soup?
a) heterogeneous
b) homogenous
c)
d)

Oil and water are each homogeneous mixtures. What happens to them when they are mixed?
a) they form a hetergeneous mixture
b) they form a phase
c) they form a pure substance
d)

A physical blend of 2 or more components is called a ____.
a) type of element
b) chemical mixture
c) mixture
d) physical property

Lemonade is what type of mixture?
a) heterogeneous
b) homogeneous
c)
d)

A mixture in which the composition is NOT uniform throughout is called a _____ mixture.
a) heterogeneous
b) homogeneous
c)
d)

Which of the following is an example of a chemical change?
a) filling up a balloon with hot air
b) taking a glass of water and freezing it by placing it in the freezer
c) a plant collecting sunlight and turning it into food
d) your dog ripping up your homework

Which of the following is an example of a physical change?
a) mixing baking soda and vinegar together, and this causes bubbles to form
b) a glass cup falls from the counter and shatters on the ground
c) lighting a piece of paper on fire and the paper burns
d) baking a bierthday cake

What characteristic best describes what happens during a physical change?
a) compsition changes
b) composition stays the same
c) form stays the same
d) mass is lost

Which is an example of a physical change?
a) metal rusting
b) silver tarnishing
c) water boiling
d) paper buring

Which change can be easily reversed?
a) chemical change
b) physical change
c) both a physical and chemical change
d) none of the above

When a new substance is formed with different properties than the original substance it is called a
a) chemical change
b) physical change
c) freezing
d) boiling

If the chemical properties of a substance remain unchanged and the appearance or shape of a substance changes it is called a
a) chemical change
b) physical change
c) both a and b
d) none of the above

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