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Wytopp Science Review

Total questions: 93

Worksheet time: 50mins

Name
Class
Date
1.

The science of studying the concept of matter and its motion, as well as space and time...

a)

Force

b)

Friction

c)

Physics

d)

Speed

2.

A push or pull on an object

a)

Physics

b)

Friction

c)

Slope

d)

Force

3.

A measure of the quantity of matter in an object

a)

Weight

b)

Force

c)

Mass

d)

Vector

4.

Quantities that are fully described by ONLY a magnitude

a)

Vector

b)

Scalar

c)

Mass

d)

Energy

5.

The force that resists motion between bodies in contact

a)

Slope

b)

Velocity

c)

Friction

d)

Scalar

6.

Where is the STARTING point?

a)

Point A

b)

Point B

c)

Point C

7.

Which is the END point?

a)

Point A

b)

Point B

c)

Point C

8.

What is the RESULTANT vector?

a)

Arrow A

b)

Arrow B

c)

Arrow C

9.

What direction is the resultant arrow pointing to?

a)

North East

b)

South West

c)

South East

d)

North West

10.

This is the formula to calculate...

a)

Distance

b)

Time

c)

Acceleration

d)

Velocity

11.

The "d" in this formula represents...

a)

Depth

b)

Distance

c)

Days

12.

The "t" in this formula represents...

a)

Trips

b)

Tables

c)

Time

13.

Seconds (s) is a unit for...

a)

Distance

b)

Velocity

c)

Acceleration

d)

Time

14.

Kilometers (km) is a unit for...

a)

Volume

b)

Time

c)

Distance

d)

Velocity

15.

Meters per second (m/s) are units for...

a)

Acceleration

b)

Distance

c)

Time

d)

Velocity

16.

The accelerating growth that produces a J-shaped curve when the population is graphed over time

a)

Bio Magnification

b)

Heterotroph

c)

Exponential Growth

d)

Population Expansion

17.

Food chains which interlock with each other to form a feeding relationship

a)

Food Chain

b)

Population

c)

Ecosystem

d)

Food Web

18.

The size of a population that can be supported indefinitely by the resources of a given ecosystem

a)

Limiting Factor

b)

Food Chain

c)

Exponential Growth

d)

Carrying Capacity

19.

A factor that limits the growth, distribution, or amount of population in an ecosystem

a)

Inorganic Matter

b)

Limiting Factor

c)

Invasive Species

d)

Carrying Capacity

20.

When the concentration of a fat-soluble pesticide increases as you move up a food chain

a)

Biodiversity

b)

Limiting Factor

c)

Bio Magnification

d)

Exponential Growth

21.

Nitrogen can be fixed by _______________ in the soil or in plant roots.

a)

Worms

b)

Bacteria

c)

Fungi

d)

Viruses

22.

The World Wildlife Foundation's recent report revealed that wildlife populations have fallen by _______%.

a)

20

b)

40

c)

60

d)

80

23.

True or False. The earth's population growth has contributed to wildlife species population decline.

a)

True

b)

False

24.

Natural ecosystems operate in _______________: plants grow in soil, animals eat plants, dung replenishes soil...

a)

Cycles

b)

Linear Systems

c)

Horizontal Patterns

d)

The Pride Lands

25.

In the Water Cycle: what is the process when liquid water changes into water vapor?

a)

Evaporation

b)

Condensation

c)

Precipitation

d)

Transpiration

26.

In the Water Cycle: what is the process when water vapor changes into liquid water?

a)

Evaporation

b)

Condensation

c)

Precipitation

d)

Transpiration

27.

How much of the water on Earth is fresh water?

a)

50%

b)

25%

c)

15%

d)

2.4%

28.

What is the name of this process?

a)

Photosynthesis

b)

Respiration

c)

Combustion

d)

Decomposition

29.

Nitrogen is a building block of _____________

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Fatty Acids

30.

The majority of nitrogen is "fixed" by

a)

Fungi

b)

Viruses

c)

Worms

d)

Bacteria

31.

Pulse crops include lentils, peas, alfalfa... These crops are all ________________.

a)

Grains

b)

Legumes

c)

Oil Seeds

d)

Forage

32.

What is Earth's largest carbon reservoir?

a)

Atmosphere

b)

Ocean

c)

Earth's Crust

d)

Trees

33.

The greenhouse gas effect ____________ heat radiating from Earth towards space

a)

Releases

b)

Traps

c)

Combusts

d)

Delivers

34.

"We are ultimately bound by and reliant upon the ________ natural world of ours."

a)

Infinite

b)

Endless

c)

Finite

d)

Beautiful

35.

"The living world is essentially ___________ powered."

a)

Solar

b)

Fossil Fuel

c)

Carbon

d)

Wind

36.

Why is the United States not one of the world leaders in climate change?

a)

They have so many climate change believers

b)

They have so many climate change deniers

c)

They have invested a lot in renewable energy

d)

NASA has evidence that it is happening

37.

Horizontal rows of the periodic table

a)

Ion

b)

Anion

c)

Periodic Group/Family

d)

Period

38.

The building blocks of elements

a)

Atoms

b)

Elements

c)

Protons

d)

Neutrons

39.

Found to the left of the “ladder”

generally shiny solids and good conductors

a)

Non-metals

b)

Metals

c)

Gases

d)

Atoms

40.

Found to the right of the “ladder”

exist in all three states of matter

a)

Metals

b)

Gold

c)

Atom

d)

Non-metals

41.

Vertical columns of the periodic table

a)

Period

b)

Periodic Group/Family

c)

Atoms

d)

Elements

42.

A change that produces no new product and (usually) can be reversed

a)

Chemical Change

b)

Physical Change

c)

No change

43.

Chemical reaction in which energy is given off to the surroundings (exo=exit). The final product will feel warmer

a)

Single Replacement Reaction

b)

Double Replacement Reaction

c)

Endothermic

d)

Exothermic

44.

A change that produces a new product with new properties

a)

Physical Change

b)

Chemical Change

c)

No change

45.

The substances that exist before the reaction has occurred.

a)

Metals

b)

Reactants

c)

Products

d)

Non-metals

46.

A substance that tastes bitter, is a good conductor, turns red litmus paper blue

a)

Anion

b)

Cation

c)

Acid

d)

Base

47.

Ag, Li, Ca are all considered….

a)

Metals

b)

Non-metals

c)

Halogens

d)

Noble Gases

48.

The most unreactive (stable) group of elements on the Periodic Table are the

a)

Alkali metals

b)

Noble gases

c)

Transition Metals

d)

Halogens

49.

The group/family that begins with F all has what charge?

a)

0

b)

-1

c)

-2

d)

-3

50.

Which of these statements is FALSE:

a)

Protons have a positive charge

b)

Electrons have a negative charge

c)

The nucleus of an atom is positively charged

d)

The electrons and the neutrons are located in the nucleus of the atom

51.

What is the atomic weight of lead?

a)

53

b)

127

c)

82

d)

207

52.

How many NEUTRONS does boron have?

a)

4

b)

5

c)

6

d)

7

53.

How many NEUTRONS does helium have?

a)

1

b)

2

c)

3

d)

4

54.

What is the atomic weight of Oxygen?

a)

2

b)

8

c)

15

d)

16

55.

What is the atomic weight of calcium?

a)

2

b)

20

c)

40

d)

41

56.

What is the atomic weight of Beryllium?

a)

2

b)

4

c)

9

d)

10

57.

What are the REACTANTS in the following equation?

propane + oxygen --> carbon dioxide + water

a)

propane + oxygen

b)

carbon dioxide + water

58.

What are the PRODUCTS in the following equation?

propane + oxygen --> carbon dioxide + water

a)

propane + oxygen

b)

carbon dioxide + water

59.

When 100g of sulfur reacts with 150g of oxygen, how much sulfur trioxide is produced?

a)

50g

b)

150g

c)

250g

d)

5000000g

60.
This helps to speed up a reaction but does not take part in the chemical reaction. 
a)
coeffiecents
b)
reactants
c)
catalyst
d)
combustion
61.

Chopping up a wood log to make it burn faster would be an example of:

a)

Increasing concentration

b)

Increasing temperature

c)

Increasing surface area

d)

Adding a catalyst

62.

Burning gasoline in a car is an example of what type of reaction?

a)

Synthesis

b)

Decomposition

c)

Combustion

d)

Single Replacement

63.

Lemon juice is an example of:

a)

Acid

b)

Base

64.

Baking Soda is an example of:

a)

Acid

b)

Base

65.

Windex (ammonia) is an example of:

a)

Acid

b)

Base

66.

Vinegar is an example of:

a)

Acid

b)

Base

67.
An explosion is an example of a: 
a)
Chemical Change 
b)
Physical Change
68.
Adding hydrochloric acid (HCl) to a magnesium ribbon strip is an example of what type of change?
a)
Physical Change 
b)
Chemical Change 
c)
No Change 
d)
Mechanical Change
69.
Breaking a toothpick is an example of which type of change?
a)
Chemical Change 
b)
Mechanical Change 
c)
No Change 
d)
Physical Change 
70.

Is cooking pancakes a physical or chemical change?

a)

Chemical

b)

Physical

71.

How many sig figs is...

0.03

a)

1

b)

2

c)

3

d)

4

72.

How many sig figs is...

25.0

a)

1

b)

2

c)

3

d)

4

73.

How many sig figs is...

36 000

a)

1

b)

2

c)

5

d)

6

74.

How many sig figs is...

1050

a)

1

b)

2

c)

3

d)

4

75.

How many sig figs is...

0.625

a)

1

b)

2

c)

3

d)

4

76.

How many sig figs is...

200

a)

1

b)

2

c)

3

d)

4

77.

For a distance vs time graph, the slope is equal to...

a)

Acceleration

b)

Distance

c)

Velocity/Speed

d)

Time

78.

Describe the motion of this car...

a)

The car is moving very fast

b)

The car is moving very slow

c)

The car is not moving at all

79.

Describe the motion of this car...

a)

The car is moving very fast

b)

The car is moving very slow

c)

The car is not moving at all

80.

Describe the motion of the car...

a)

The car is moving very fast

b)

The car is moving very slow

c)

The car is not moving at all

81.

The is the formula for...

a)

Distance

b)

Time

c)

Velocity

d)

Acceleration

82.

Meters per second squared (m/s2) are units for...

a)

Distance

b)

Time

c)

Velocity

d)

Acceleration

83.

Kilometers per hour per second (km/h/s) are units for...

a)

Velocity

b)

Acceleration

c)

Distance

d)

Time

84.

What type of reaction is this?

a)

Single Replacement

b)

Double Replacement

c)

Combination

d)

Decomposition

85.

A scientific law that states that the total mass of the reactants in a chemical reaction is always equal to the total mass of the products

a)

Before and After Law

b)

Always Equal Law

c)

Law of Conservation of Mass

d)

Law of Chemistry

86.

What type of chemical reaction is this?

a)

Single

b)

Double

c)

Synthesis

d)

Decomposition

87.

How many sodium (Na) atoms are there in:
Na2CO3Na_2CO_3  

a)

1

b)

2

c)

3

d)

4

88.

How many barium (Ba) atoms are there in:
3BaCl23BaCl_2  

a)

1

b)

2

c)

3

d)

4

89.

How many aluminum (Al) atoms are there in:
4Al2(CO3)34Al_2\left(CO_3\right)_3  

a)

2

b)

4

c)

6

d)

8

90.

How many sulfur (S) atoms are there in:
3FeSO43FeSO_4  

a)

1

b)

2

c)

3

d)

4

91.
Balance this equation:
 2Li + Cl2 -> LiCl
a)
2Li + Cl2 -> 4LiCl2
b)
2Li + Cl2 -> LiCl2
c)
2Li + Cl2 -> 2LiCl
92.
Is the following equation balanced or unbalanced ? 
Al + O2 --> Al2O3
a)
Balanced
b)
Unbalanced
93.
Is the following equation balanced or unbalanced ? 
N2 +3 H2 --> 2NH3
a)
Balanced
b)
Unbalanced

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