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22/23 Semester 1 review

Total questions: 60

Worksheet time: 41mins

Name
Class
Date
1.

A property that is observed without making changes to the substance.

a)

Chemical Reaction

b)

Chemical Property

c)

Physical Property

d)

Physical Reaction

2.

When baking soda mixes with vinegar, a chemical reaction occurs. This reactivity is an example of a _______________.

a)

Chemical Property

b)

Physical Property

3.

Which of the following is an example of a chemical change?

a)

Cutting paper

b)

Sugar burning

c)

Freezing water

4.

What are the units for measuring mass?

a)

g

b)

mL

c)

g/mL

d)

mL/g

5.

What are the units for measuring volume?

a)

g

b)

mL

c)

g/mL

d)

mL/g

6.

Calculate the density if the mass is 2g and the volume is 2mL.

a)

2 g/mL

b)

1 mL/g

c)

2 mL/g

d)

1 g/mL

7.

Which object would float in water?

a)

Button (density = .79g/mL)

b)

Rock (density = 3.2g/mL)

c)

Penny (density = 1.3g/mL)

d)

Ball (density = 1.9 g/mL)

8.

Which equation would you use to calculate density?

a)

Mass divided by Volume

b)

Volume divided by Mass

c)

Mass multiplied by Volume

d)

Mass plus Volume

9.

Which liquid has a density of 3g/mL?

a)

W

b)

X

c)

Y

d)

Z

10.

Check all the substances that are considered elements.

a)

gold

b)

water

c)

oxygen

d)

carbon dioxide

e)

silver

11.

Mark all the examples that result in a chemical change.

a)

Cooking / Baking

b)

Boiling Water

c)

Rusting

d)

Tearing food with teeth

e)

mixing food with saliva and enzymes to break it down into glucose

12.
True or False: a physical change may produce a new substance.
a)
True
b)
False
13.
A physical change can sometimes result in a color change. Which of the following situations show this?
a)
Milk turns yellow when it spoils.
b)
Dough becomes darker when it is baked into cake.
c)
A red candy dissolves and turns water pink.
d)
A match turns black when it is burned.
14.
Which of the following physical changes shows a change in a substance's state of matter?
a)
a piece of paper being torn in half
b)
clay being molded into a bowl
c)
an ice cube being crushed
d)
liquid water becoming steam
15.

Match the following

a)

Sodium

1.

Na

b)

Helium

2.

He

c)

Oxygen

3.

O

d)

Carbon

4.

C

e)

Iron

5.

Fe

16.

What is a compound?

a)

A substance that is made up of one type of atom and can't be reduced to simpler substances.

b)

A substance made of two or more different atoms chemically bonded to one another. They can only be destroyed by chemical processes.

c)

A material containing two or more elements or compounds that are in close contact and are mixed in any proportion. They can be separated by physical means.

17.

What is an element?

a)

A substance that is made up of one type of atom and can't be reduced to simpler substances.

b)

A substance made of two or more different atoms chemically bonded to one another. They can only be destroyed by chemical processes.

c)

A material containing two or more elements or compounds that are in close contact and are mixed in any proportion. They can be separated by physical means.

18.

What is a mixture?

a)

A substance that is made up of one type of atom and can't be reduced to simpler substances.

b)

A substance made of two or more different atoms chemically bonded to one another. They can only be destroyed by chemical processes.

c)

A material containing two or more elements or compounds that are in close contact and are mixed in any proportion. They can be separated by physical means.

19.

Choose all the images that represent compounds.

a)
b)
c)
d)
20.
Elements can be broken down into simpler substances. 
a)
false 
b)
true 
21.

Diamonds (C) and uranium (U) are examples of

a)

elements

b)

mixtures

c)

compounds

22.

Which elements are to the right of the zig zag?

a)

metals

b)

nonmetals

c)

metalloids

23.

ductile means...

a)

can be made into wire

b)

can be bent or hammered

c)

can light up a light bulb

d)

it's shiny

24.

Substances that can be hammered into thin sheets are:

a)

metals

b)

nonmetals

c)

both metals and nonmetals

25.

Which elements are to the LEFT of the zigzag?

a)

metals

b)

nonmetals

c)

metalloids

26.
An element has properties of BOTH metals and nonmetals. WHERE would it be found in the periodic table? 
a)
To the right 
b)
To the left 
c)
on the zig zag line
27.
If a student observes a silvery solid that is malleable, good conductor, and ductile it is a...
a)
nonmetal 
b)
metal 
c)
metalloid
28.
What does luster mean?
a)
Breaks into pieces
b)
can be hammered into thin sheets
c)
No shine
d)
reflects light, shiny 
29.
What does brittle mean?
a)
Breaks into pieces
b)
can be hammered into thin sheets
c)
No shine
d)
reflects light shiny 
30.
Can be found on the periodic table
a)
Element
b)
Compound
c)
MIxture
31.
Diamond has a hardness of ___ on Mohs Hardness Scale.
a)
1
b)
5
c)
8
d)
10
32.
How do you test the hardness of a mineral? 
a)
Throw it against a wall
b)
Step on it
c)
Scratch Test
d)
Kick it until it breaks
33.

-the name of the scale used to determine a mineral's hardness.

a)

Miller's scale of hardness

b)

The Scale of Hardness

c)

Mohs scale of hardness

d)

Mineral Hardness Scale

34.
Which is NOT a property used for identifying minerals?
a)
Streak
b)
Hardness
c)
Taste
d)
Color
35.

What is the softest mineral?

a)

Talc

b)

Diamond

c)

Gypsum

d)

Topaz

36.

What two minerals can a fingernail scratch? (Choose 2)

a)

Talc

b)

Gypsum

c)

Calcite

d)

Fluorite

37.

Which of these can scratch quartz?

a)

Steel Nail

b)

Apatite

c)

Topaz

d)

Penny

38.

True or False: Glass can scratch orthoclase?

a)

True

b)

False

39.

At which point is potential energy greatest?

a)

W

b)

X

c)

Y

d)

Z

40.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
c)
Both potential and kinetic energy
d)
none of the above
41.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
42.

Smooth surface has..

a)

More friction

b)

Less friction

c)

None of these

43.

Friction is a...

a)

non-contact force

b)

contact force

c)

magnetic force

d)

electrostatic force

44.
The rougher the surface, the faster an object will travel over the surface.
a)
True
b)
False
45.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
46.

Which inclined plane requires the most force to push the ball to the top?

a)
b)
c)
d)
47.

Students want to raise a large crate from the ground to a deck several feet above the ground. They know it will be easier to move the crate along an inclined plane because the inclined plane will —

a)

A. reduce the work needed to raise the crate.

b)

B. increase the force applied to the crate.

c)

C. increase the work done on the crate.

d)

D. reduce the force necessary to raise the crate.

48.

Which simple machine increases the distance over which a load travels and reduces the needed force?

a)

wheel and axle

b)

wedge

c)

pulley

d)

inclined plane

49.

Robert is using an inclined plane to move a heavy box into a truck bed that is two meters off the ground. He has several inclined planes to choose from. Order these inclined planes in order of LEAST to GREATEST mechanical advantage?

a)
b)
c)
d)
1)
2)
3)
4)
50.

What do we call the energy that is produced by the heat inside the earth?

a)

wind energy

b)

Volcano energy

c)

Geothermal energy

d)

Tidal energy

51.

Hydroelectric dams use ______________ to turn the turbines.

a)

electricity

b)

wind

c)

rushing water

d)

heat from the earth

52.

Renewable resources are things that we can ________________.

a)

only use once

b)

burn

c)

dig up from the ground

d)

use over and over again

53.

What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?

a)

mechanical energy to chemical energy

b)

thermal energy to mechanical energy

c)

chemical energy to mechanical energy

d)

mechanical energy to thermal energy

54.

What is the energy transformation that occurs in an electric pencil sharpener?

a)

mechanical energy to electrical energy

b)

electrical energy to mechanical energy

c)

radiant energy to sound energy

d)

chemical energy to mechanical energy

55.

What kind of energy is represented in the picture?

a)

Thermal

b)

Chemical

c)

Sound

d)

Kinetic

56.

When energy is released, it dissappears.

a)

True

b)

False

57.

The weather has the greatest affect on which energy resource?

a)

Geothermal

b)

Nuclear

c)

Wind

d)

Natural gas

58.

Energy transformation occurs when

a)

Energy is created

b)

Electricity is created

c)

Energy changes form

d)

There is a chemical reaction.

59.

The process of changing energy from one form to another is called

a)

Transmutation

b)

Transformation

c)

Transmission

d)

Transliteration

60.

Match the following formulas

a)

Density

1.

Mass divided by volume

b)

Mass

2.

Density times volume

c)

Volume

3.

Mass divided by density

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