Quiz about Reversible or Irreversible

Question 1

Which of these is NOT a reversible change?

Accepted Answer

Cookie Dough to Cookie

Answer

Water to Ice

Answer

Juice to Popsicle

Answer

Melting Chocolate

Question 2

A popsicle is a.....

Accepted Answer

solid

Answer

gas

Answer

liquid

Question 3

What is an irreversible change?

Accepted Answer

Something you cannot change back.

Answer

Something you can change back.

Question 4

What is a reversible change?

Accepted Answer

Something you can change back.

Answer

Something you cannot change back.

Question 5

The change happening in the picture is...

Accepted Answer

Reversible

Answer

Irreversible

Answer

Changes

Question 6

What is a liquid?

Accepted Answer

Liquids take the shape of their container.

Answer

Liquids have their own shape and size.

Answer

Liquids spread out to fill space.

Question 7

What is a solid?

Accepted Answer

Solids have their own shape and size.

Answer

Solids take the shape of their container.

Answer

Solids spread out to fill space.

Question 8

What is a gas?

Accepted Answer

Gases spread out to fill space.

Answer

Gases have their own shape and size.

Answer

Gases take the shape of their container.

Question 9

Burning wood is a reversible change.

Accepted Answer

False

Answer

True

Question 10

Baking a cake is an example of:

Accepted Answer

an irreversible change

Answer

a reversible change

Question 11

The boiled egg is ______________, the unboiled egg is _____________

Accepted Answer

solid, liquid

Answer

liquid, gas

Answer

gas, solid

Answer

liquid, solid

Question 12

Hand sanitizer, sunscreen, and milk are examples of what state of matter?

Accepted Answer

Liquid

Answer

Solid

Answer

Gas

Question 13

A rock, a chair, or a table are examples of what state of matter?

Accepted Answer

Solid

Answer

Liquid

Answer

Gas

Question 14

The ice cream is left outside. It is now a liquid. What has happened?

Accepted Answer

The sun made it melt.

Answer

The sun made it freeze.

Answer

Someone ate it.

Question 15

When a solid reaches the temperatures of its ___, it can become a liquid.

Accepted Answer

melting point

Answer

freezing point

Answer

boiling point

Answer

density

Question 16

When a liquid reaches the temperatures of its ___, it can become a gas.

Accepted Answer

boiling point

Answer

melting point

Answer

freezing point

Answer

density

Question 17

Freezing point of water is

Accepted Answer

0 degrees Celcius

Answer

100 degrees Celsius

Answer

0 degrees Fahrenheit

Question 18

The freezing and melting points of water are the same.

Accepted Answer

True

Answer

False

Question 19

What is the boiling point of water

Accepted Answer

100 C

Answer

0 C

Answer

100 F

Answer

50 C

Question 20

Choose the TWO reversible changes:

Accepted Answer

Option C is correct

Accepted Answer

Option A is correct

Answer

B.

Answer

D.

Question 21

Chemical changes...

Accepted Answer

Always form a new substance.

Accepted Answer

May absorb or release heat.

Accepted Answer

May change colour, produce odor, create sound, release gas or produce light.

Answer

May change shape or size.

Answer

Can often be undone.

Question 22

Physical Changes...

Accepted Answer

Can often be undone.

Accepted Answer

May change state of matter.

Accepted Answer

May change shape or size.

Accepted Answer

Do not form a new substance.

Answer

May absorb or release heat.

Question 23

Leaves in autumn undergo a chemical change.

Accepted Answer

TRUE

Answer

FALSE

Question 24

Fireworks exploding in the sky undergo a physical change.

Accepted Answer

FALSE

Answer

TRUE

Question 25

Choose the answers that respond to a physical change.

Accepted Answer

Chopping wood.

Accepted Answer

Melting ice.

Answer

Burning wood.

Answer

Rotten bananas.

Question 26

Choose the answers that respond to a chemical change.

Accepted Answer

Fireworks.

Accepted Answer

Making a cake.

Answer

Cutting fabric to make a dress.

Answer

Chopping onions.

Question 27

Mixing and dissolving are examples of reversible change.

Accepted Answer

TRUE

Answer

FALSE

Question 28

Rusting is an irreversible change.

Accepted Answer

TRUE

Answer

FALSE

Question 29

Tick the three main things you need to start a fire.

Accepted Answer

A fuel.

Accepted Answer

Oxygen.

Accepted Answer

Ignition.

Answer

An extinguisher.

Question 30

Reversible changes are irreversible

Accepted Answer

False

Answer

True

Question 31

Which one of this is correct

Accepted Answer

reversible change can be reversed

Answer

reversible change are chemical change

Answer

irreversible change are physical change

Answer

reversible change are as same as irrevesible

Question 32

Melting of wax is

Accepted Answer

reversible change

Answer

irreversible change

Question 33

what is the change of candle

Accepted Answer

both reversible and irreversible change

Answer

reversible change

Answer

irreversile change

Answer

none of the above

Question 34

Burning of candle wax is a ________change

Accepted Answer

Reversible change

Answer

Irreversible change

Question 35

Burning of paper is a _______________ change

Accepted Answer

Irreversible change

Answer

Reversible change

Question 36

Melting of butter is a _______________ change

Accepted Answer

Reversible change

Answer

Irreversible change

Question 37

Melting of ice cream is a _______________ change

Accepted Answer

Reversible change

Answer

Irreversible change

Question 38

Tearing paper to small pieces is a _______________ change

Accepted Answer

Reversible change

Answer

Irreversible change

Question 39

Frying an egg to make an omelette is a _______________ change

Accepted Answer

Irreversible change

Answer

Reversible change

Question 40

Which of these is NOT a reversible change?

Accepted Answer

Cookie Dough to Cookie

Answer

Water to Ice

Answer

Juice to Popsicle

Answer

Melting Chocolate

Question 41

Which of these are irreversible change

Accepted Answer

setting of curd

Answer

Melting of candle wax

Answer

Folding of paper

Question 42

Is eveything reversible

Accepted Answer

False

Answer

True

Question 43

Physical change are genrally

Accepted Answer

reversible change

Answer

irreversible change

Question 44

Chemical changes...

Accepted Answer

Always form a new substance.

Accepted Answer

May absorb or release heat.

Accepted Answer

May change colour, produce odor, create sound, release gas or produce light.

Answer

May change shape or size.

Answer

Can often be undone.

Reversible or Irreversible

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