Chemical Changes

Question 1

What is chemical change?

Answer 1

When matter changes into new substance

Question 2

3 Examples of chemical change

Answer 2

Can be:
-Penny rusting
-Frying an egg
-Burning wood
-Baking cookies
-Making slime
-Digesting food
-Autumn leaves changing color
-Lighting a match

Question 3

What are some signs of chemical changes?

Answer 3

Gas (Bubbles) is released
Temperature change
Light is released
New smell/odor
Sound is made
Taste
*Color change

Question 4

Is this a sign of Physical or Chemical Change?
New shape

Answer 4

Physical Change

Question 5

Is this a chemical or physical change:
Cutting an apple

Answer 5

Physical Change

Question 6

Is this a sign of Physical or Chemical Change?
Light is released

Answer 6

Chemical Change

Question 7

Is this a sign of Physical or Chemical Change?
A sound is made

Answer 7

Chemical Change

Question 8

If the change creates a NEW or DIFFERENT matter, it is a ______ change.

Answer 8

Chemical

Question 9

Is this a sign of Physical or Chemical Change?
Temperature Change

Answer 9

Chemical Change

Question 10

If the change creates NO NEW substance, it is a _____ change.

Answer 10

Physical

Question 11

Is this a sign of Physical or Chemical Change?
Gas is released

Answer 11

Chemical Change

Question 12

Is this a chemical or physical change:
Baking a cookie

Answer 12

Chemical Change

Question 13

Is this a sign of Physical or Chemical Change?
New state of matter

Answer 13

Physical Change

Question 14

If the change happens but the thing or matter is still the same, it is a _______ change.

Answer 14

Physical

Question 15

Is this a sign of Physical or Chemical Change?
Size change

Answer 15

Physical Change

Question 16

If the change creates a NEW substance, it is a _____ change.

Answer 16

Chemical

Question 17

Is this a chemical or physical change:
Boiling Water

Answer 17

Physical Change

Question 18

If the change happens, a ______ change can be changed back to the original matter.

Answer 18

Physical

Question 19

Is this a chemical or physical change:
Rotting fruit

Answer 19

Chemical Change

Question 20

Is this a sign of Physical or Chemical Change?
Can be changed back

Answer 20

Physical Change

Question 21

Is this a chemical or physical change:
Burning wood

Answer 21

Chemical Change

Question 22

If the change happens, a _______ change is very hard to change back.

Answer 22

Chemical

Question 23

Is this a sign of Physical or Chemical Change?
New odor/smell

Answer 23

Chemical Change

Question 24

Is this a chemical or physical change:
Melting ice

Answer 24

Physical Change