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Unit 2 Review

Total questions: 51

Worksheet time: 4hrs 15mins

Name
Class
Date
1.
What form of matter has a definite shape?
a)
Solid
b)
Liquid
c)
Gas
d)
Square
2.
What can causes ice to transform from a solid to a liquid?
a)
The air.
b)
The cold.
c)
Shape
d)
Heat
3.
This state of matter does not have a definite size or shape.
a)
Gas
b)
Liquid
c)
Solid
d)
Milk
4.
Which state of matter has particles that are tightly packed?
a)
liquid
b)
gas
c)
solid
5.
The amount of matter something contains. 
a)
volume
b)
mass
c)
density
d)
measurement 
6.
A description of objects that can be measured and observed.
a)
gas
b)
mustangs
c)
physical properties
d)
melting point
7.
If you saw a glass of water and later the water was gone what happened to the water? Remember that your in the science lab.
a)
Ms. Klenk was very thirsty and drank the water.
b)
evaporation
c)
precipitation
d)
solubility
8.
Which change can occur when  you add heat energy to water?
a)
The water can change from a liquid to a solid
b)
The water can change from a gas to a liquid
c)
The water can change from a liquid to a gas
d)
The water can change from a solid to a liquid
9.
Adding HEAT to matter causes its particles to:
a)
move faster and farther apart
b)
Move slower and farther apart
c)
Move faster and closer together
d)
Move slower and closer together
10.
The amount of space something takes up
a)
density
b)
volume
c)
mass
d)
matter
11.
A watermelon has more matter than a grape, so it has more
a)
mass
b)
eat
c)
solid
d)
greater
12.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
13.
Why does ice float?
a)
Liquid water is less dense than solid water.
b)
Solid water is less dense than liquid water.
c)
Gaseous water is less dense than solid water.
d)
Liquid water is less dense than gaseous water.
14.
A student was asked to help pass out cups of hot chocolate to two other students.  A teacher poured the steaming liquid into cups.  Once cup was made of stainless steel and the other was made of thick plastic.  As the student walked across the room, he suddenly put one of the cups on a desk and exclaimed "Ouch".  Which cup did he put down and why?
a)
He put down the plastic cup because the contents were spilling everywhere.
b)
He put down the steel cup because it was conducting thermal energy from the liquid to his hand.
c)
He put down the steel cup because it was insulating thermal energy from the liquid to his hand.
d)
He put down the plastic cup because it was insulating thermal energy from the liquid to his hand.
15.
Which liquid has the greatest density?
a)
lamp oil
b)
karo syrup
c)
water
d)
honey
16.
Example for Physical Property
a)
Taste
b)
explodes
17.
A physical property can be observed with your
a)
Eyes
b)
Ears
c)
Tastes
d)
All of the above
18.
Cutting an orange is a physical change.
a)
True
b)
False
19.
What causes a change in the state of matter?
a)
physical properties
b)
chemical energy
c)
temperature
20.
A mixture that appears to be evenly mixed throughout:
a)
an atom
b)
a compound
c)
a homogeneous mixture
d)
a heterogeneous mixture
21.
 mixture that does NOT appear to be evenly mixed throughout:
a)
an atom
b)
a compound
c)
a homogeneous mixture
d)
a heterogeneous mixture
22.
Can a mixture be separated? 
a)
No
b)
Yes
c)
Only sometimes
23.

Jorge put the south side of one magnet near the south side of another magnet. What happened next? o

a)

The magnets were attracted to each other.

b)

The magnets pushed away from each other.

24.

Alondra learned about magnets in school. Wanting to know more, Alondra wondered if any objects in her house would be magnetic. She found the following items:


A pencil, a gold coin, an iron nail, and a glass dish.


Which of the following items would be attracted to a magnet?

a)

a pencil

b)

a gold coin

c)

an iron nail

d)

a glass dish

25.

Which of the following properties of matter can you NOT measure?

a)

Volume

b)

Taste

c)

Weight

d)

Size

26.

Amy has a small sample of an unknown element that she is trying to identify. Amy divides the mass of the sample by its volume.


Which property of matter is Amy using to identify the element?

a)

Weight

b)

Density

c)

Texture

d)

Freezing point

27.

Sand and salt are placed in the bottom of a beaker filled with water. The beaker is heated, and the water is stirred.


What will happen to the salt and sand?

a)

The sand and salt will settle to the bottom.

b)

The sand and salt will dissolve in the water

c)

The salt will dissolve, and the sand will settle

d)

The sand will evaporate, and the salt will dissolve.

28.

A mixture of sand, salt, and iron fillings is stirred into a beaker of water. The mixture is then allowed to settle.


What will separate the iron fillings from the mixture?

a)

Magnetism

b)

Filtration

c)

Flotation

d)

Sifting

29.

A student preforms an activity, filling two large bowls, A and B, with 550 mL of water each. She adds 100 g or salt to bowl A and allows the salt to dissolve completely. She places an egg in bowl B and observes that the egg sinks. The student then places the same type of egg in bowl A and observes that the egg floats.

a)

Salt decreases the mass of water

b)

Salt increases the density of water

c)

Salt decreases the volume of water

d)

Salt increases the temperature of water

30.

A student drops a rock and a cork in a cup of water as shown.


The student observes that the cork floats while the rock sinks in water. What can be concluded from the observation?

a)

The cork is more dense than the rock and water

b)

The rock is more dense than the cork and water

c)

The rock is more dense than the cork but less dense than the water

d)

The cork is more dense than the water but less dense than the rock

31.

Sammy poured oil and water into a glass and mixed the liquids. He let the liquids sit in the glass for 8 hours and the 2 liquids separated as shown in the picture.


What happened to the 2 liquids?

a)

The oil is more dense than water, and it dissolved in the water

b)

The oil is less dense than water, and it dissolved in the water

c)

The oil is more dense than water and cannot dissolve in water

d)

The oil is less dense than water and cannot dissolve in water

32.

Colton and his brothers put some raisins, hazelnuts, almonds, and peanuts in a bowl to make a snack for their movie. What does this snack represent?

a)

a solution

b)

a new element

c)

a new compound

d)

a mixture

33.

Which is NOT a method used for separating mixtures?

a)

sifting

b)

flotation

c)

filtration

d)

dissolving

34.

Which is a solution

a)

chocolate milk

b)

sand and water

c)

dinosaurs and cubes

d)

salad

35.

In a mixture, two or more things are mixed together and those parts _______________

a)

can be easily separated

b)

can not be easily separated

36.

In a solution, two or more things are mixed together and those parts _______________

a)

can be easily separated

b)

can not be easily separated

37.

Weight is the measure of ____________

a)

How much stuff is in an object

b)

How big an object is

c)

How much gravity is pushing down on an object

38.
__________ are the building blocks of life.
a)
solids
b)
gases
c)
atoms
d)
nutrients
39.

Sammy poured oil and water into a glass and mixed the liquids. He let the liquids sit in the glass for 8 hours and the 2 liquids separated as shown in the picture.


What happened to the 2 liquids?

a)

The oil is more dense than water, and it dissolved in the water

b)

The oil is less dense than water, and it dissolved in the water

c)

The oil is more dense than water and cannot dissolve in water

d)

The oil is less dense than water and cannot dissolve in water

40.
What is the BEST example of a conductor? 
a)
A wooden block
b)
A ceramic mug
c)
A glass cup
d)
A metal bowl
41.
Conductors are materials that...
a)
Allow heat to pass through
b)
Stop heat from passing through
c)
Allow cold to pass through
d)
Stop cold from passing through
42.
All of the following are conductors except _______.
a)
metal spoon
b)
wire
c)
iron nail
d)
plastic spoon
43.
Which of the following materials is an electrical insulator?
a)
aluminum
b)
gold
c)
rubber
d)
steel
44.

Which substance would be attracted to a magnet?

a)

Silver

b)

Gold

c)

Iron

d)

Lead

45.

What happens when two north poles of a magnet are placed together?

a)

They attract

b)

They repel

c)

They cancel each other out

d)

The strength of the magnet is doubled

46.

What happens when the north pole and south pole of a magnet are placed together?

a)

They attract

b)

They repel

c)

They cancel each other out

d)

The strength of the magnet is doubled

47.

Magnets attract to all metals

a)

True

b)

False

48.

Which of the following is a property of magnets?

a)

Same poles attract

b)

All magnets have one pole

c)

All magnets are made of copper

d)

All magnets are surrounded by a magnetic field

49.

What materials found in Earth's core have magnetic properties?

a)

Refrigerator magnets

b)

gold and silver

c)

water

d)

iron and nickel

50.

How is Earth's magnetic field similar to that of a magnet?

a)

It is shaped like a sphere

b)

It is hundreds of miles long

c)

It has North and South poles

d)

It is shaped like a horseshoe

51.
The property that attracts iron and steel.
a)
magnetism
b)
electricity
c)
north pole
d)
south pole