Quiz about Physical and Chemical Changes

Question 1

What type of change is fireworks.

Accepted Answer

chemical change

Answer

physical change

Question 2

Which is a chemical change to a piece of paper?

Accepted Answer

burning

Answer

folding

Answer

cutting

Question 3

Its an example of

Accepted Answer

chemical change

Answer

physical change

Answer

melting

Question 4

The sign of a chemical change in a burning matchstick is

Accepted Answer

light and heat

Answer

forming of gas

Answer

change color

Question 5

The best example of physical change.

Accepted Answer

Option B is correct

Answer

A.

Answer

C.

Question 6

All the chemical changes are useful.

Accepted Answer

false

Answer

true

Question 7

Which of the following examples represents a physical change?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 8

When sugar dissolves in water a ______________ change occurs.

Accepted Answer

Physical change

Answer

Chemical Change

Question 9

Which of the following is evidence of a physical change?

Accepted Answer

Shape Change

Answer

New substance

Answer

Light produced

Answer

Gas released.

Question 10

A physical change is

Accepted Answer

a change where the characteristics do not change the substance

Answer

a change where the characteristics do change the substance

Answer

a change where the chemistry changes

Question 11

A teacher is demonstrating physical and chemical changes to her class. Which action should they use to demonstrate a chemical change?

Accepted Answer

Burning a piece of paper with a match.

Answer

Cutting a piece of paper with scissors.

Answer

Folding a piece of paper into an airplane.

Answer

Ripping a piece of paper with their hands.

Question 12

Chewing food to break it down into smaller particles represents a _________ change, but the changing of starch into sugars by enzymes in the digestive system represents a ___________change.

Accepted Answer

Physical then Chemical

Answer

Chemical then Physical

Answer

Both Physical

Answer

Both Chemical

Question 13

Choose every image that represents a chemical change.

Accepted Answer

Option B is correct

Accepted Answer

Option D is correct

Answer

A.

Answer

C.

Question 14

Think this through: Can the same substance undergo both a physical and a chemical change at the same time.

Accepted Answer

Yes

Answer

No

Question 15

melting ice cream

Accepted Answer

physical change

Answer

chemical change

Question 16

glass breaking

Accepted Answer

physical change

Answer

chemical change

Question 17

a rusting bicycle

Accepted Answer

chemical change

Answer

physical change

Question 18

frying an egg

Accepted Answer

chemical change

Answer

physical change

Question 19

Question 19.

Accepted Answer

chemical change

Answer

physical change

Question 20

freezing chocolate covered bananas

Accepted Answer

physical change

Answer

chemical change

Question 21

When ice melts, the water has the same _________ as the ice

Accepted Answer

mass

Answer

temperature

Answer

state of matter

Answer

shape

Question 22

15 grams of sugar are dissolved into 300 grams of water. what is the mass of the mixture?

Accepted Answer

315

Answer

15

Answer

285

Answer

300

Question 23

How are particles in a solid formed?

Accepted Answer

tightly packed together

Answer

loosely packed

Answer

very loosely packed

Question 24

An oreo cookie weighs 20 grams.  It gets crushed into crumbs for a recipe.  How much do its crumbs weigh?

Accepted Answer

20 grams

Answer

15 grams

Answer

25 grams

Question 25

What evidence was found for conservation of matter in the fire snake demo?

Accepted Answer

about the same weight before and after

Answer

looked the same before and after

Answer

smelled the same before and after

Answer

matter was not conserved

Question 26

As the balloon collects gas, what happens to the weight reading on the scale?

Accepted Answer

stays the same

Answer

increases

Answer

decreases

Answer

goes to zero

Physical and Chemical Changes

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