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Science Leap Review

Total questions: 102

Worksheet time: 2hrs 50mins

Name
Class
Date
1.

As you move towards the poles, what happens to temperature?

a)

temperature becomes hotter

b)

temperature becomes colder

2.
What type of storm front is this? 
a)
warm front
b)
cold front
c)
stationary front
d)
occluded front
3.
What does symbol # 3 mean?
a)
stationary front
b)
occluded front
c)
warm front
d)
cold front
4.
A front is
a)
where warm air is cooling at earth's surface
b)
a line where hot and cold air are separating
c)
a line where two different air masses meet
d)
where cold air is rising and forming rain clouds
5.
_____________ air is more dense and tends to sink
a)
cold
b)
warm
c)
moist
d)
dry
6.
Which type of front is pictured?
a)
Cold front
b)
Warm front
c)
Occluded front
d)
Stationary front
7.
Which type of front is pictured?
a)
Cold front
b)
Warm front
c)
Occluded front
d)
Stationary front
8.
What symbol is this?
a)
warm front
b)
cold front
c)
stationary front
d)
occluded front
9.
When a cold front is approaching, what happens?
a)
warm air is pushing under cold air causing humid weather and lower temperatures
b)
warm air is pushing under cold air causing humid weather and higher temperatures
c)
warm air rises, cools, and causes rain and thunderstorms
d)
cold air is pushed over warm air causing rain and thunderstorms
10.
What direction is the warm front moving on the map? 
a)
North
b)
South
c)
East
d)
West
11.
What direction is the cold front moving on the map? 
a)
Southwest
b)
Northwest
c)
Southeast
d)
Northeast
12.
Which of the following models best demonstrates a balanced chemical equation?
a)
F
b)
G
c)
H
d)
J
13.
The reactants are on the left side of the chemical equation.
a)
True
b)
False
14.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
15.
Is glass breaking a chemical or phyiscal change?
a)
chemical
b)
physical
16.
Is hammering wood together to build a house a chemical or physical change?
a)
chemical
b)
physical
17.
Is a a rusting bicycle a chemical or physical change?
a)
chemcial
b)
physical
18.
Which is an example of a chemical reaction?
a)
paper cut into small pieces
b)
chocolate melting in a pan
c)
flour and sugar mixed in a bowl
d)
cookies baking in an oven
19.
G = green, g = yellow
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
20.
Which of the following alleles is homozygous (purebred) recessive?
a)
Tt
b)
tt
c)
TT
d)
t
21.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
22.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
23.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
24.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
25.
In this punnett square, which is the dominant trait?
The B stands for bud.
a)
purple flower bud
b)
white flower bud
c)
dominant
d)
recessive
26.
When you leave your cold drink outside, the glass may have water drops on it.  This is an example of...
a)
condensation
b)
evaporation
c)
precipitation
d)
estuary
27.
Which form of energy causes water to boil?
a)
sound energy
b)
mechanical energy
c)
thermal energy
d)
light energy
28.
Which change is happening to the water?
a)
it is changing from a liquid to a gas
b)
it is changing from a liquid to a solid
c)
it is changing from a solid to a gas
d)
it is changing from a gas to a liquid
29.
Which process does the diagram show?
a)
freezing
b)
boiling
c)
evaporation
d)
melting
30.

Hot things have ____________ thermal energy than cold things

a)

more

b)

less

c)

same

d)

potato

31.

Cold things often have a _________ kinetic energy because_______

a)

lower; particles are moving around less

b)

lower; particles are moving around more

c)

higher; particles are moving around the same

d)

higher; particles do not move

32.

As temperature increases, molecules _____________

a)

move slower

b)

move the same

c)

move faster

d)

stop moving

33.

Kinetic Energy is the energy of _________

a)

thermal

b)

movement

c)

potential

d)

atoms

34.

Thermal energy is the __________ _________ energy of moving particles

a)

total potential

b)

average potential

c)

average kinetic

d)

total kinetic

35.

Temperature is the __________ _________ energy of moving particles

a)

average potential

b)

average kinetic

c)

total potential

d)

total kinetic

36.

Law of Conservation of Mass says...

a)

Energy is always created and destroyed

b)

Energy is only in hot things

c)

Energy can be destroyed easily

d)

Energy cannot be created or destroyed

37.
On a cold rainy day a baby is touching a cold window.  It feels so cold. Which way is the heat moving moving? 
a)
Cold is moving from the window to the hand.
b)
Heat is moving from the hand to the window.
c)
Heat doesn't move.
d)
It moves in currents
38.
Warm air rises and the cool air sinks demonstrates this type of heat transfer. 
a)
conduction
b)
convection
c)
radiation
d)
Insolation 
39.
Heat transfer occurs
a)
in many directions
b)
both from warm objects to colder ones and from cold objects to warmer ones.
c)
only from warm objects to colder ones.
d)
only from cold objects to warmer ones.
40.
Which type of image is this? 
a)
Radar
b)
Satellite
c)
Isotherm
d)
Isobar
41.

Low pressure is usually associated with what type of weather

a)

clear, fair

b)

cloudy, rainy

c)

bright blue skies

d)

sunshine

42.
Which most likely produces clear, cool weather?
a)
zero air pressure
b)
stable air pressure
c)
a low pressure system
d)
a high pressure system
43.
Which system results in rainy or stormy weather?
a)
high pressure
b)
low pressure
c)
hurricane
d)
weather system
44.
Which system results in drier, fairer weather?
a)
high pressure
b)
low pressure
c)
hurricane
d)
weather system
45.

What type of front is moving through North Carolina?

a)

Warm

b)

Cold

c)

Occluded

d)

Stationary

46.

The skies in Houston are...

a)

Cloudy

b)

Clear

c)

Partly Cloudy

47.

What will be the highest temperature in southern California today?

a)

30 F

b)

60 F

c)

70 F

d)

90 F

48.

You have a flight into Atlanta today. What kind of skies can you expect?

a)

Clear

b)

Somewhat Cloudy

c)

Very Cloudy

49.

Describe the cloud cover in Denver

a)

Overcast/Very Cloudy

b)

Partly Cloudy

c)

Clear

50.

What imaginary latitude line divides our world into the northern and southern hemispheres?

a)

equator

b)

international date line

51.

What organelle contains your genes?

a)

DNA

b)

Genomes

c)

Proteins

d)

Alleles

52.

Where does the food chain begin?

a)

Insects

b)

The sun

c)

Mice

d)

Birds of prey

53.

The process of which plants intake energy from the sun and convert it to glucose (sugar)

a)

Solar conversion

b)

Energy intake

c)

Photosynthesis

d)

I don't know

54.

What are the stages of cell division (mitosis)?

a)

Prephase, Metaphase, Intraphase, Aphase, Telophase

b)

Interphase, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis

c)

Dualphase, Metaphase, Cellular Division, Cytokinesis, Prophase

d)

Before, during, and after

55.

What is the main control center of cells?

a)

Nucleolus

b)

Nucleus

c)

Golgi Body

d)

Lysosomes

56.

Both primary and secondary succession begin with pioneer species that

a)

use up all the existing resources and prevent establishment of non-native organisms

b)

modify the area and allow larger and more complex organisms to appear

c)

change the area and make it safer from predatory organisms

d)

invade the area so that new organisms cannot be established

57.

Frederick is studying how ecological succession will change a freshly-plowed piece of land. Which data table represents what Frederick is most likely to record about the plant life in each stage of ecological succession?

a)
b)
c)
d)
58.

The picture shows where oranges are grown in the United States. Oranges require a very long growing season with mild to hot weather.What is the most likely reason many of the oranges are grown in California?

a)

There are more organisms that eat oranges in California than in any other states.

b)

California has a climate that creates a good environment for growing oranges.

c)

Oranges will only grow in states on the coast with environments near water.

d)

Oranges will only grow in sandy soil that few of the other states have.

59.

When an ecosystem contains many different species, there are usually a high number of links in its food web. How does this affect the sustainability of the ecosystem?

a)

Typically, if one link in the food web is removed, the ecosystem will no longer exist.

b)

Typically, if one link in the food web is added, the ecosystem will destabilize.

c)

Typically, if one link in the food web is removed, the ecosystem will remain stable.

d)

Typically, if one link in the food web is added, the ecosystem will change its location.

60.

An ecosystem's sustainability is most dependent on?

a)

warm temperatures.

b)

the amount of water there.

c)

having a large number of a single plant species.

d)

the number and variety of organisms that live there.

61.

Which ecosystem would most likely survive if the grasses were destroyed by a plant virus?

a)

Ecosystem 2, because there are not many predators.

b)

Ecosystem 2, because the grasses could grow back quickly.

c)

Ecosystem 1, because there is a variety of producers that support the ecosystem

d)

Ecosystem 1, because there are fewer primary consumers.

62.

Which is a Physical change?

a)

Color

b)

Rusting

c)

Burning

d)

Reactions with acid

63.

An example of a decomposer is a(n)

a)

Fungi

b)

Fox

c)

Rabbit

d)

Grass

64.

What type of storm front is this?

a)

Warm Front

b)

Cold Front

c)

Stationary Front

d)

occluded front

65.

Which of these human activities will help to improve air quality?

a)

Planting Trees

b)

Burning Trash

c)

Installing Windmills

d)

Burning fossil fuels

66.

What Factors impact global temperatures over time?

a)

Distance from Sea

b)

latitude

c)

Closer to the sun

d)

warmer area

67.
Gas exchange in the body occurs in which system?
a)
respiratory
b)
nervous
c)
immune
d)
muscular
68.
What level of organization is this?
a)
cell
b)
tissue
c)
organ
d)
organ system
69.
a group of organ systems working together form __________________________
a)
an organ
b)
an organism
c)
an organ system
d)
a cell
70.

According to the Law of Conservation of Mass,

a)

matter is always created in a chemical reaction

b)

matter is always destroyed in a chemical reaction

c)

matter is created and then destroyed in a chemical reaction

d)

matter is not created or destroyed in a chemical reaction

71.

The diagram below shows a balance being used to measure a burning candle in a sealed glass ball before and after the burning is complete. As the candle burns, the size of the candle decreases, but the reading on the balance does not change. Which of the following is demonstrated by this experiment?

a)

The total mass of the system is constant.

b)

Energy is converted to mass when the candle is burned.

c)

Smoke particles have more mass than molecules of candle wax.

d)

Kinetic energy is converted to potential energy when the candle is burned.

72.

Examine the following chemical reaction: H20 + CO2 → C6H12O6 + O2 What are the reactants?

a)

H20 + CO2

b)

→

c)

C6H12O6 + O2

d)

H20 + CO2 → C6H12O6 + O2

73.

Examine the following chemical reaction: H20 + CO2 → C6H12O6 + O2 What are the products?

a)

H20 + CO2

b)

→

c)

C6H12O6 + O2

d)

H20 + CO2 → C6H12O6 + O2

74.

The law of conservation of mass can be demonstrated by a chemical reaction. Which of the following models of a chemical reaction best represents the law of conservation of mass?

a)
b)
c)
d)
75.

Substances created, or made, during a chemical reaction are known as the

a)

reactants

b)

products

c)

chemicals

d)

substances

76.
largest number of individuals of a population that the environment can support  
a)
carrying capacity
b)
primary succession 
c)
denitrification
d)
mutualism
77.
Non-living factor that affects an ecosystem
a)
biotic factor
b)
abiotic factor
c)
food chain 
d)
biome
78.
Living factors in an ecosystem
a)
abiotic factors
b)
species
c)
trophic level
d)
biotic factors
79.
All the living and non-living factors that interact in an area
a)
ecosystem
b)
carnivore
c)
niche
d)
population
80.
If a population grows larger than the carrying capacity of the environment, the population is likely to
a)
decrease
b)
 increase
c)
stay the same
81.

Looking at the graph of the pigeon population, which statement is TRUE?

a)

The maximum pigeon population was 275

b)

The largest decrease was between years 4 and 5

c)

The largest decrease was between years 7 and 8

d)

The population decreased from years 2 to 3

82.
What is an invasive species?
a)
A native (naturally found) species which are added to an area. 
b)
A non-native (not naturally found) species added to an area. 
c)
A keystone species in an environment
d)
none of the above
83.
Invasive species alter the ecosystem by a___________in number quickly,this leads to _____ food for the native  species. 
a)
increasing  less
b)
decline  decreasing
84.

What is Global Warming?

a)

Increasing temperature in Earth's atmosphere

b)

Decreasing temperature in a city

c)

Increasing rain rates in Earth

d)

Decreasing temperature rates

85.
Which of the following is NOT an effect of Global Warming?
a)
Polar ice caps will melt.
b)
Coastal regions will be covered with rising sea levels.
c)
Some areas will experience serious droughts
d)
The Earth's rotation will slow down and eventually stop
86.
The main human activity that releases greenhouse gases is
a)
using bottled water
b)
burning fossil fuels
c)
texting on cellphones
d)
eating meat
87.
How can global warming cause sea levels to rise? Choose the best answer.
a)
by causing it to rain more often
b)
by melting glaciers and ice caps
c)
by increasing the number of undersea volcanic eruptions
d)
by creating bigger and more powerful hurricanes
88.

The graph below shows CO2 emissions and temperatures from 1909 to 1949. What conclusion is best supported by the graph?

a)

There is no relationship between carbon dioxide concentrations and temperatures

b)

As carbon dioxide concentrations increase, temperatures increase

c)

As carbon dioxide concentrations increase, temperatures decrease

d)

As carbon dioxide concentrations decrease, temperatures increase

89.

Carbon Dioxide, CO2, comes from

a)

Burning fossil fuels

b)

Cold water

c)

Animal manure

d)

Plastic

90.
Humidity is the...
a)
Amount of Water Vapor in the Air
b)
Amount of Wind in the Air
c)
Amount of Precipitation in the Air
d)
Amount of Pressure in the Air
91.
What kind of weather is usually associated with a high pressure system?
a)
Sunny weather
b)
Precipitation (rain, snow, etc.)
92.
What kind of weather is usually associated with a low pressure system?
a)
Sunny weather
b)
Precipitation (rain, snow, etc.)
93.
In what direction do winds always blow?
a)
From areas of high pressure to areas of low pressure
b)
From areas of low pressure to areas of high pressure
94.
A warm air mass overtakes a slow-moving cold air mass is called a _____________________.
a)
warm front
b)
cold front
c)
stationary front
d)
occluded front
95.
Cold and warm masses meet, but neither can move the other is called a ______________________
a)
warm front
b)
cold front
c)
stationary front
d)
occluded front
96.
Which of the following air masses would be characterized as warm and dry?
a)
Maritime tropical
b)
Continental tropical
c)
Maritime polar
d)
Continental polar
97.
Which front has the symbol of blue triangles?
a)
warm front
b)
cold front
c)
stationary front
d)
occluded front
98.

In which state of matter are the molecules spaced farthest apart?

a)

Solid

b)

Liquid

c)

Gas

d)

All are equal

99.

Which statement correctly describes both gases and liquids?

a)

Their shapes stay the same in any container.

b)

Their shapes change when they are in different containers.

c)

Their volumes stay the same in any container.

d)

Their volumes change when they are in different containers.

100.

Brian's family has a compost pile at home. They put all the weeds they pull up from the garden in it as well as any vegetable waste they gather from the kitchen. If they keep it moist, all this vegetation will eventually turn into organic soil by the chemical process of decay. Since decay involves a variety of chemical reactions, how might temperature affect the rate at which the compost turns into soil?

a)

Temperatures near freezing would make it speed up.

b)

It would happen faster at warmer air temperatures.

c)

Changing temperatures would not affect the chemical reactions.

d)

Warm summer air temperatures would make it slow down.

101.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
102.

Which number has the particles moving the fastest?

a)

1

b)

2

c)

5

d)

4

e)

3

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