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Worksheets

8th Grade IXL F5

Total questions: 16

Worksheet time: 14mins

Name
Class
Date
1.

What do these two changes have in common?


chemicals in a battery reacting to a power flashlight

an old sandwich rotting in a trashcan


Select all that apply.

a)

Both are only physical changes

b)

Both are chemical changes

c)

Both are caused by heating

d)

Both are caused by cooling

2.

What do these two changes have in common?


knitting yarn into a scarf

filtering air to remove dust and pollen


Select all that apply

a)

Both are only physical changes

b)

Both are chemical changes

c)

Both are caused by heating

d)

Both are caused by cooling

3.

What do these two changes have in common?


baking a loaf of bread

salt and vinegar removing tarnish from a penny


Select all the apply.

a)

Both are only physical changes

b)

Both are chemical changes

c)

Both are caused by heating

d)

Both are caused by cooling

4.

What do these two changes have in common?


rust forming on a metal gate

silver jewelry tarnishing


Select all that apply.

a)

Both are only physical changes

b)

Both are chemical changes

c)

Both are caused by heating

d)

Both are caused by cooling

5.

What do these two changes have in common?


making jam

a piece of avocado turning brown


Select all that apply.

a)

Both are only physical changes

b)

Both are chemical changes

c)

Both are caused by heating

d)

Both are caused by cooling

6.

How are feeling right now?

a)

Alright, I guess

b)

Terrible

c)

Awesome

7.

What do these two changes have in common?


water boiling on a stove

using a large magnet to remove pieces of iron from a junkyard


Select all that apply.

a)

Both are changes of state

b)

Both conserve mass

c)

Both are only physical changes

d)

Both are chemical changes

8.

What do these two changes have in common?


making paper from wood

a log decomposing in the woods


Select all that apply.

a)

Both are caused by cooling

b)

Both are chemical changes

c)

Both are changes of state

d)

Both conserve mass

9.

What do these two changes have in common?


deep-frying chicken

rust forming on a bicycle frame


Select all that apply.

a)

Both are caused by cooling

b)

Both conserve mass

c)

Both are caused by heating

d)

Both are chemical changes

10.

What do these two changes have in common?


mixing sand and gravel

carving a piece of wood


Select all that apply.

a)

Both are only physical changes

b)

Both are chemical changes

c)

Both are caused by heating

d)

Both are caused by cooling

11.

What do these two changes have in common?


a copper statue turning green

a piece of pizza rotting in a trashcan


Select all that apply.

a)

Both are only physical changes

b)

Both are caused by cooling

c)

Both are chemical changes

d)

Both are changes of state

12.

What do these two changes have in common?


grilling a hamburger

boiling an egg


Select all that apply.

a)

Both are caused by heating

b)

Both are only physical changes

c)

Both conserve mass

d)

Both are chemical changes

13.

What do these two changes have in common?


picking up a paper clip with a magnet

dry ice sublimating and becoming a gas


Select all that apply.

a)

Both conserve mass

b)

Both are only physical changes

c)

Both are changes of state

d)

Both are chemical changes

14.

What do these two changes have in common?


milk going sour

mixing glue and laundry powder to create putty


Select all that apply.

a)

Both are caused by cooling

b)

Both are chemical changes

c)

Both are only physical changes

d)

Both are changes of state

15.

How are you feeling now?

a)

Alright, I guess

b)

Terrible

c)

Awesome

16.

Explain what a physical and a chemical change is?

4 lines