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Semester Interated review large

Total questions: 91

Worksheet time: 1hrs 21mins

Name
Class
Date
1.
What is salad?
a)
element
b)
compound
c)
mixture
2.

A student pours mineral salts into a bottle of cold water. Which of the following best explains why shaking the bottle will affect the dissolving rate of the salt?

a)

Shaking exposes the salts to the solvent more quickly.

b)

Shaking helps more water evaporate.

c)

Shaking equalizes the water temperature.

d)

Shaking causes more ions to precipitate out of solution.

3.
__________is the energy generated from the sun by using solar panels.
a)
Wind
b)
Hydro
c)
Nuclear
d)
Solar
4.

__________uses heat from the interior of the Earth.

a)

Solar

b)

Geothermal

c)

Nucler

d)

Wind

5.

"If plants are exposed to sunlight, then they will grow taller."

What part of the scientific method is this an example of?

a)

Procedure

b)

Hypothesis

c)

Question

d)

Results

6.

Which step? "Why is the sliced cheese all moldy?"

a)

make a hypothesis

b)

draw a conclusion

c)

ask a question

d)

experiment

7.

Which step? "I was right: Touching the cheese is the factor in making cheese moldy."

a)

make a hypothesis

b)

draw a conclusion

c)

ask a question

d)

experiment

8.

What happens to the atoms of a substance in a chemical change?

a)

Atoms get bigger

b)

Atoms change their arrangement and motion

c)

Atoms get smaller

d)

Atoms bond together differently

9.
Why is a balloon with air in it heavier than a balloon without air?
a)
it's larger
b)
it has matter in it
c)
it takes up more space
d)
none of the above
10.
Look at this image.  Which object has the LOWEST density in water? How? 
a)
The Ping Pong Ball because it floats to the top 
b)
The bolt because it has sunk to the bottom
c)
The soda cap because it is not just full of air like the Ping Pong ball
11.

Which box has a higher density?

a)

A

b)

B

c)

They are the same

12.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
13.
Green bananas turning yellow on their own as they ripen.
a)
Chemical Change
b)
Physical Change
14.
Ripping up paper ...
a)
Chemical Change
b)
Physical Change
15.
Causes a change in odor ...
a)
Chemical Reaction 
b)
Physical Reaction
16.
Is Gatorade powder dissolving in water physical or chemical change?
a)
Physical 
b)
Chemical
17.

This is an example of a

a)

Solution

b)

Mixture

18.

The smallest particle into which an element can be divided and still be the same element is a(n)

a)

proton

b)

neutron

c)

electron

d)

atom

19.

Which subatomic particle has a positive charge?

a)

proton

b)

nuetron

c)

electron

d)

atom

20.

Which subatomic particle has a negative charge?

a)

proton

b)

neutron

c)

electron

d)

atom

21.
What does the 6 represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
22.
How many neutrons are in a Gold atom?
a)
79
b)
196
c)
118
d)
275
23.
How did Mendeleev arrange the elements?
a)
alphabetical 
b)
density
c)
melting point
d)
atomic mass
24.
The blue atoms are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
25.

Who discovered the nucleus?

a)

Rutherford

b)

Bohr

c)

Thomson

d)

Dalton

26.

Which bond does this picture best represent?

a)

Metallic bond

b)

ionic bond

c)

covalent bond

d)

James Bond

27.
How many valence electrons in this structure?
a)
6
b)
5
c)
4
d)
7
28.
What type of bond is this?
a)
ionic
b)
covalent
29.
How many electrons can the first level or ring hold? 
a)
2
b)
4 
c)
6 
d)
8
30.
According to the diagram below, how many bonds will this atom need to make to be stable?
a)
1
b)
2
c)
3
d)
4
31.
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
a)
Gamma Rays
b)
Radio Waves
c)
Visible Light
d)
Infrared rays
32.
_____________________light is the only type of EM wave detected by the human eye.
a)
Red
b)
Gamma
c)
Microwave
d)
Visible
33.

What should be done if any science apparatus is damaged?

a)

Throw away the science apparatus

b)

Take home the science apparatus for repair

c)

Report to the teacher about the damaged science apparatus

d)

Sell the science apparatus

34.

Dan fills a bowl with hot water. He places four different objects in the bowl. Then he smears a bit of butter on each object, just above the water's surface. The picture below shows Dan's experiment.

On which object will Dan first see butter melting?

a)

plastic ruler

b)

wood spoon

c)

metal spoon

d)

rubber spatula

35.

Provided is a list of five different substances. How many of these substances are elements?

a)

2

b)

3

c)

4

d)

5

36.

Table Salt (NaCl)

a)

element

b)

compound

c)

mixture

37.

If I want more sugar to dissolve in water, I should heat the water

a)

true

b)

false

38.

A common gas that we find dissolved in coca cola is

a)

krypton

b)

neon

c)

oxygen

d)

carbon dioxide

39.

These electrons are in the outermost energy level of an atom - you can also decipher how many of these electrons orbit atoms based on their Periodic Table group number:

a)

Neutrons

b)

Protons

c)

Ions

d)

Valence electrons

40.
What is the correct formula for this molecule?
a)
NH
b)
N3H
c)
NH3
d)
NH4
41.

The following image is a food example of a

a)

protein

b)

lipid

c)

nucleic acid

d)

carbohydrate

42.

What force of attraction holds atoms or ions together?

a)

Chemical Bond

b)

Covalent Bond

c)

Ionic Bond

d)

Jimmy Neutron

43.
What is a value used to express acidity or alkalinity called?
a)
pH
b)
Acid
c)
Base
d)
Neutralization Reaction
44.

What type of compound has a sour taste?

a)

acid

b)

base

c)

water

d)

neutral solution

45.

Anything that has mass and takes up space.

a)

matter

b)

nitrogen

c)

salinity

d)

chemical formula

46.

The smallest unit or part of an element is called .......

a)

an atom

b)

an element

c)

a molecule

d)

a compound

47.

This forms when two or more elements chemically combine

a)

Atom

b)

Element

c)

Compound

d)

Oxygen

48.
What kind of ions do metals form in an ionic compound?
a)
Positive Ions
b)
Negative Ions
c)
Neutral Atoms
d)
Isotope
49.
Is mold growing on cheese a physical or chemical change?
a)
Physical 
b)
Chemical
50.
The correct formula for the diagram is _________.
a)
K2O
b)
2KO
c)
KOK2
d)
KO2
51.

choose the pictures of things that use energy

a)
b)
c)
d)
e)
52.

choose the correct type of energy according to the picture

a)

chemical energy

b)

thermal energy

c)

electrical energy

d)

mechanical energy

53.

choose the correct type of energy according to the picture

a)

electrical energy

b)

chemical energy

c)

mechanical energy

d)

nuclear energy

54.

choose the correct type of energy according to the picture

a)

thermal energy

b)

electrical energy

c)

mechanic energy

d)

chemical energy

55.

choose the correct type of energy according to the picture

a)

electrical energy

b)

mechanical energy

c)

nuclear energy

d)

chemical energy

56.

nuclear energy is made from atoms

a)

true

b)

false

57.

chemical energy is made from atoms and molecules

a)

true

b)

false

58.

choose the correct option according to the picture

a)

geothermal power

b)

solar power

c)

wind power

d)

biomass power

59.

LIVING THINGS CAN MOVE.

a)

TRUE

b)

FALSE

60.

SCIENTISTS ASK ...

a)

b)

61.

Look and choose.

a)

solid

b)

liquid

c)

gas

62.

Look and choose.

a)

solid

b)

liquid

c)

gas

63.

Look and choose.

a)

solid

b)

liquid

c)

gas

64.

Read and choose.

This ice is in a ... place.

a)

warm

b)

cold

65.

Which picture shows a change to the cupcake?

a)
b)
66.

Light is a form of _____________

a)

water

b)

energy

c)

hair

67.

Do people make energy when they exercise, like running?

a)

yes

b)

no

68.
Anything that has mass and takes up space is called
a)
volume
volume
b)
matter
c)
magnetism
d)
electricity
69.

A student wants to choose a gift with the least volume. What is the best selection for her from the choices below?

a)

rain boots

b)

back pack

c)

watch

d)

hat

70.

A student measures outside temperatures at three different times of day.

•Morning: at 8 am

•Afternoon: at noon

•Evening: at 6 pm

According to the temperatures on each thermometer, which of the statements is correct?

a)

It was warmest outside at 8 am.

b)

The temperature increased all day.

c)

It was coolest at noon.

d)

The temperature decreased after noon.

71.

Which chart below matches the picture?

a)
b)
c)
d)
72.

Which of the three balls shown has the greatest volume?

a)

golf ball

b)

tennis ball

c)

baseball

d)

all of them

73.
As a substance heats up, its molecules ___________________.
a)
slow down and get closer together
b)
slow down
c)
speed up and get farther apart
d)
stop
74.

What is a sign of a chemical change?

a)

Stretching

b)

Tearing

c)

Compressing

d)

Bubbles

75.

What happens when sugar dissolves in water?

a)

Physical change because a new substance is formed

b)

Chemical change because a new substance is formed

c)

Physical change because the sugar is just getting smaller

d)

Chemical change because the sugar is just getting smaller

76.
What is a property?
a)
Something that describes matter
b)
a definition
c)
the space matter takes up
d)
the weight of matter
77.
Look at this image.  Which object has the LOWEST density in water? How? 
a)
The Ping Pong Ball because it floats to the top 
b)
The bolt because it has sunk to the bottom
c)
The soda cap because it is not just full of air like the Ping Pong ball
78.
What units are used to measure mass?
a)
g
b)
cm3
c)
g/cm3
d)
cm3/g
79.

Which box has a higher density?

a)

A

b)

B

c)

They are the same

80.

Which state of matter does not have a definite shape but does have a definite volume?

a)

Solid

b)

Liquid

c)

Gas

81.

What is the process called when a gas turns into a liquid?

a)

Condensation

b)

Melting

c)

Freezing

d)

Evaporation

82.

What is the process called when a liquid changes into a gas?

a)

Freezing

b)

Evaporation

c)

Melting

d)

Condensation

83.

The positively charged particle in an atom.

a)

Proton

b)

Neutron

c)

Electron

d)

Nucleus

84.

The following subatomic particles are in the nucleus.

a)

Protons and nucleus.

b)

Protons and neutrons.

c)

Protons and electrons

d)

Neutrons and electrons

85.

Atoms bond together in different ways to make ________________.

a)

Substances

b)

Matter

c)

Molecules

86.

What is this table

a)

Elemental Table of Periods

b)

Atomic Table of Atoms

c)

Periodic Table of Elements

87.

What is the name of this element?

a)

11

b)

Na

c)

Sodium

d)

20.98977

88.

What is an explanation you make putting together what you already knew with what you observed?

a)

inference

b)

observation

c)

hypothesis

d)

prediction

89.
Which of the following is an observation of the picture?
a)
The person is wearing a T-shirt
b)
It is a sunny day
c)
The person is going to a birthday party
d)
The gift is a DVD player
90.

A general statement that describes a patterns that are often observed in nature.

a)

logical law

b)

civil law

c)

moral law

d)

scientific law

91.

What is an inference?

a)

gather information about your surroundings

b)

use information gathered to make an educated guess

c)

forecast of what will happen in the future

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