Environmental

1
Final Review

• Environmental

2
Question 1Which of the following would be biotic
factors for an ecosystem.

• A running stream
• C. Nitrogen in the soil

• B. Sunshine
• D. Plants and animal

3
Question 2Nitrogen is necessary for the growth
of organisms. In an ecosystem the amount of
Nitrogen can/is

• More.
• C. Changes.

• Less.
• D. Balanced

4
Question 3Turtles have lived successfully on
earth through many eras of geologic time. Why
have they been so successful in surviving for so
long (thinkadaptation).

• Turtles have adaptations that have allowed them
  to be successful
• D. They live on land and in water.

• Turtles are warm blooded
• C. They carry their house with them

5
Question 4Kangaroo rats survive the harsh desert
environment. What adaptations has allowed them
to survive in this environment.

• Kangaroo rats are nocturnal and burrow deep below
  the ground during the day.
• C. Kangaroo rats are warm blooded

• Kangaroo rats hop on two legs
• D. Kangaroo rats have a coat of fur.

6
Question 5How do nutrients and energy move
through a food chain?

• Plant (producer) ? Fungus (decomposer) ? Animal
  (consumer)
• Plant (producer) ? Animal (consumer) ?Fungus
  (decomposer)
• Fungus (decomposer) ? Animal (consumer) ?Plant
  (producer)
• Animal (consumer) ? Fungus (decomposer) ? Plant (
  producer)

7
Question 6The ivory billed woodpecker
disappeared from the US in the 1940s. Which of
the following most likely caused the
disappearance-extinction.

• A. Increase in its preferred food
• C. Habitat destruction

B. Adequate nest sites D. Successful breeding
8
Question 7Farmers often leave fields unused for
long periods of time. When they clear the field
it is often a difficult task because small trees
have grown in the open area. What best explains
this situations.
B. Forest succession D. Trees are plant for
shade on the field.

• A. Squirrels plant seeds for future food.
• C. Clear cutting

9
Question 8Saplings grow slowly in the understory
of a forest because they are light-suppressed.
What does the term light-suppressed mean.

• A. There is no sunlight in the understory
• C. Sunlight is dim in the understory.

B. Rainfall is light in the understory D.
There is bright sunlight in the understory
10
Question 9What happens when logging clear cut
large areas of forested land.

• Mutualism
• C. predation

• B. Migration
• D. Deforestation

11
Question 10 Photosynthesis is H20 CO2
?(sunlight)?C6 H12 O6 02Read the formula above
for the process of photosynthesis. How is this
process part of the carbon and oxygen cycle.
(think about interactions between plants and
animals)

• Plants release carbon to the ground.
• C. Plants use nitrogen dioxide exhaled from
  animals and release the oxygen that animals need.

• Plants use carbon dioxide exhaled from animals
  and release the oxygen that animals need.
• D. Animals release hydrogen to the air.

12
End of quiz
13
Key

• 1) D
• 2) D
• 3) B
• 4) A
• 5) B
• 6) C
• 7) A
• 8) C
• 9) D
• 10) B

14
Final Review

• Chemistry

15
Question 1What are molecules (characteristics)
Example H2O?

• Solids or gases
• C. Mixture of atoms

• B. Different chemical compounds
• D. Groups of atoms chemically combined

16
Question 2A compound .

• Same all the way through
• C. Has some of the properties of the elements

• Has the same properties of the element used to
  form it
• D. Is different than the elements used to form
  it.

17
Question 3Where are the reactants in this
equation?
2HCl Zn ? ZnCl2 H2

• On either side of the arrow
• C. No reactants in any of the equations

B. To the left of the arrow D. To the right
of the arrow
18
Question 4What is the Law of Conservation of
mass?
2HCl Zn ? ZnCl2 H2

• Total mass of the reactants and products do not
  change
• C. The reactants weigh more than the products

B. The products weigh more than the
reactants D. The masses are never the same
19
Question 5Where are electrons located?

• Electrons have a neutral charge
• C. Electrons have a positive charge

• Electrons are on the outside of the atom
• Electrons are in the nucleus

20
Question 6The atomic number equals the number
of ?

• the number of electrons plus protons
• D. the number of protons

• neutrons plus protons
• C. the number of neutrons

21
Question 7Why is an atom neutral?

• There are fewer electrons than protons
• C. The number of electrons and protons is the
  same

• There are fewer protons than electrons
• D. An atom has only neutrons

22
End of quiz
23
Key

• 1) D
• 2) D
• 3) B
• 4) A
• 5) B
• 6) D
• 7) C

24
Final ReviewDynamic Earth
25
Question 1Many earthquakes occur when there is
movement at the boundary between two of the
earths lithosphere plates. What makes these
plates move?

• A. Heavy wind action and strong storms
• C. Strong magnetic field

B. Convection currents in the mantle D.
Radiation from the Earths inner core
26
Question 2A geologist was studying fossils in
several layers of sedimentary made. Where should
scientist look to find the oldest fossil?

• B. The top layer
• D. The bottom layer

• The thickest layer
• C. The middle layer

27
Question 3Which statement explains the best
reason why volcanoes occur?
B. Erosion forms a hole in the crust D. The
core is extremely hot

• A. Tectonic plates move
• C. One tectonic plate goes under another in a
  subduction zone.

28
Question 4The Earth is warm because of

• Radiation from the sun
• D. Conduction from space

• Convection from Earth
• C. Insulation from space

29
End of quiz
30
Key

• 1) B
• 2) D
• 3) C
• 4) B

31
Science Review

• Thermodynamics

32
Question 1Convection currents occur when

• B. Heat is transferred by particles touching
  each other.
• D. Heated particle fluid begin to flow
  transferring heat energy from one part of fluid
  to another.

• Transferred of energy through empty space.
• C. Heat energy is moved from one material to
  another.

33
Question 2Which best describes heating metal
strips in a liquid?
Metal Strips
Pot with liquid inside
Heat source
B. Heat moves (thermal energy) from a cooler
place to a warmer place. D. Heat moves (thermal
energy) from a warm place to a cool place.

• Particles in a liquid and solid both move more
  slowly
• Solid particles dont move, but liquid particles
  do move.

34
Question 3Which type of heat transfer occurs
within the metal strips?

• Transformation
• C. radiation

B. conduction D. convection
Metal Strips
Pot holding metal strips
Heat source
35
Question 4Which best represents the molecules in
a liquid?
1
2
3

• A. Picture 2 because the atoms are close
  together but are free to move about
• C. Picture 1 because the atoms are packed
  together and vibrate very little

• Picture 3 because atoms are spread apart and move
  feely
• D. None of the above

36
Question 5Warm air rises. Identify the heat
transfer process that is responsible for warm air
rising?

• Radiation
• C. Conduction

• Convection
• D. Transformation

37
Question 6Which statement best explains what
temperature measures.

• The total kinetic energy of the individual
  particles.
• C. The amount of heat lost

B. The amount of heat gained. D. The average
kinetic energy of the individual particles.
38
End of quiz
39
Key

• 1) D
• 2) D
• 3) B
• 4) A
• 5) B
• 6) D

40
Science Final

• 7th grade stuff

41
Question 1Which best describes genes?

• All living things have the same genes
• C. They float freely through a cell.

• B. Easy to observe using only your eyes.
• D. They are parts of chromosomes.

42
Question 2Since the moons gravity pulls the
earth and everything on the earth towards the
moon, why do objects stay on earth instead of
being pulled to the moon?

• The diameter of the moon is greater than the
  diameter of earth.
• D. The mass of the earth is greater than the
  mass of the moon.

• The mass of the moon is greater than the mass of
  the earth.
• C. The diameter of earth is greater than the
  diameter of the moon.

43
Question 3Identify biotic factors in an
ecosystem.

• Non living components such as water.
• C. Mineral nutrients such as nitrogen

B. Living organism such as plants D. Sunlight
44
Question 4The seasons of the year are caused by

• The tilt of the earth as revolves around the sun.
  
• C. The distance of earth from the sun.

• The moon casting a shadow on earth.
• D. The earths rotation on its axis.

45
Question 5At any one place the length of
daylight hours is determined by

• A. Earths orbit in the solar system.
• C. Earths rotation on its axis.

• Earths revolution around the sun.
• D. Moons orbit around earth.

46
Question 6Asexual reproduction produces
organisms that are(think about what the word a
means..like abiotic)

• Similar to one or both parents.
• C. Similar, but not genetically identical to
  parent.

• Genetically different from the parent.
• D. Genetically identical to parent

47
Question 7Living things need nitrogen to
survive. How do animals obtain the nitrogen they
need to survive?

• A. Farmers water crops extensively to encourage
  accumulation of nitrogen.
• C. Animals eat plants that contain nitrogen
  fixing bacteria

• Farmers add nitrogen to soil for plants to use
  when growing .
• D. Farmers plant crops that change nitrogen gas
  to useable nitrogen.

48
Question 8Which ray is the reflected ray?
B. 2 D. 4

• A. 1
• C. 3

1
2
3
4
49
End of quiz
50
Key

• 1) D
• 2) D
• 3) B
• 4) A
• 5) B
• 6) D
• 7) C
• 8) C

51
Final Review

• Cells Genes

52
Question 1Budding in yeast cells is an example
of

• A. Sexual reproduction
• C. Vegetative propagation

• Asexual reproduction
• D. Binary Fission

53
Question 2How are animal cells different from
plant cells?

• Plant cells have chloroplasts and cell walls and
  animals do not
• C. Animal cells have a nucleus while plant cells
  do not

• Animal cells have chloroplast and cells walls
  while animals cells do not.
• D. Plant cells are soft and flexible while
  animal cells are not

54
Question 3Which of the following represents the
function of a gene on a chromosome?

• A. Brain functions
• C. Triggering a reflex

B. Fertilization of an egg cell D. Inheritance
of a trait
55
Question 4Which of the following best describes
the process of fertilization ?

• The cells have growth
• D. The egg cell carries all of the genetic
  material to the sperm.

• A. The sperm cell carries all of the genetic
  material to an egg
• C. The genetic material from both the egg and
  the sperm combine

56
Question 5What is the probability of inheriting
brown eyes in this Punnett Square?

• A. 25
• C. 50

• 75
• D. 100

Female
HBrown Eyes
H h
H HH Hh
h Hh hh
Male
hblue eyes
57
End of quiz
58
Key

• 1) C
• 2) A
• 3) D
• 4) C
• 5) B

59
Final Review

• Earth and Space

60
Question 1Which of the following represents the
transfer of heat energy through space?

• Radiation
• C. Convection

• B. Conduction
• D. Burn

61
Question 2Which of the following causes a new
moon.

• The earth lies between the moon and the sun
• C. The moon lies between the earth and the sun

• The earths revolution around the sun
• D. The earth spinning on its axis

62
Question 3Emma pushes Shelby. Shelby falls
down. Which of these Newtons laws best
describes the motion?

• A force moves only if a smaller force acts upon
  it.
• D. A push or pull always results in the fall of
  one of the objects

• A force of gravity exists between any 2 objects
  that have mass.
• C. An object at rest stays at rest.

63
Question 4A hurricane forms because of

• A dry air mass forms over the Antarctica
• C. A high pressure air mass forms over strong
  winds near the equator.

• A dry air mass moves over land close to the
  equator.
• D. A low pressure area forms over the oceans
  near the equator.

64
Question 5 The collision of a cold weather front
and a warm weather front causes

• No weather occurs because the air masses fall
  apart
• C. Weather is stable because warm air pushes the
  cold air away.

• The warm air rises and cools, and storms result
• D. Cold air rises and rain begins

65
Question 6Which statement best describes the
difference between saltwater and freshwater?
(think salinity)
B. The density of saltwater is less than the
density of freshwater D. Saltwater evaporate
less quickly than freshwater

• A. The density of saltwater is greater than the
  density of saltwater
• C. Saltwater freezes at a higher temperature
  than freshwater

66
Question 7Which is used to measure
humidity-moisture in the air?

• A. anemometer
• C. spectrometer

B. psychrometer D. thermometer
67
Question 8Which of these explains why a
satellite orbits Earth?

• A. The pull of the Earths gravity hold the
  satellite in place
• C. The moon pushes the satellite toward Earth

• B. The motor in the satellite keeps the orbit
  in place
• D. The solar wind does it

68
Question 9Which of these best describes the
brightness of the bulbs in the parallel
circuit?(use the diagram to think)

• B. They have the same brightness because the
  energy flows in many pathways
• D. There is no light.

• They have different brightness because the energy
  flows in different paths
• C. They have different brightness because the
  energy flows in the same paths

69
Question 10What happens to the remaining bulb if
one bulb is removed from the series circuit? (use
the diagram to think)

• A. It goes out
• C. It stays lit

• B. It becomes brighter
• D. It becomes dimmer

70
End of quiz
71
Key

• 1) A
• 2) C
• 3) A
• 4) D
• 5) B
• 6) A
• 7) B
• 8) A
• 9) B
• 10) A

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THE END OF ALL REVIEWS