Download 30. 6 . water vapor 7 . transpiration 8 . evaporation 9 - dubai

School of Modern Skills Dubai
Name: _____________________ Revision Sheet
Grade 6
Date:___________
Section: Interactions in Communities
In the space provided, write the letter of the description that best matches each term.
_____ 1. predation
_____ 2. commensalism
_____ 3. mutualism
_____ 4. symbiosis
_____ 5. parasitism
_____ 6. herbivory
_____ 7. host
_____ 8. prey
a. a relationship in which both species benefit
b. one organisms feeds and lives on another
specific organism
c. an organism that provides food and a place to
live for a parasite
d. one organisms kills another for food
e. the act of eating plants
f. an organism that is hunted and eaten by a
predator
g. a relationship in which two species live in a
close association with each other
h. a relationship in which one species is helped
and the other is neither harmed nor helped
Complete each statement by writing the correct term in the space provided.
9. The relationship between dogs and fleas is an example of ______________________.
10. Orchids growing on the trunks of trees are an example of ______________________.
Complete each statement by underlining the correct term in the brackets.
11. In the relationship between lions and zebras, the lion is the [predator / prey].
12. In a parasite-host relationship, the host is usually [harmed / killed].
13. The relationship between eels and cleaner fish is an example of [mutualism / commensalism].
14.Resources that can be replaced at the same rate at which they are consumed are considered [renewable
/ nonrenewable].
15. Resources that form much more slowly than they are consumed are considered [renewable /
nonrenewable].
School of Modern Skills Dubai
Name: _____________________ Revision Sheet
Grade 6
Date:___________
Complete each statement by writing the correct term or phrase in the space
provided.
16. Organisms need nitrogen to build ______________________.
17. Nitrogen-fixing bacteria use ______________________ to split molecules of nitrogen gas and
combine the nitrogen atoms with hydrogen.
In the space provided, write the letter of the description that best matches the term or phrase.
_____ 18. wind energy
a. nonrenewable resource
_____ 19. solar energy
b. renewable resource
_____ 20. oil
_____ 21. natural gas
_____ 22. trees
_____ 23. coal
_____ 24. minerals
In the space provided, write the letter of the phrase that best completes the statement.
_____ 25. Trees are considered renewable because they
a. are being cut down faster than they can grow.
b. can never be used up.
c. can be replaced as quickly as they are used.
d. grow more slowly than they are used.
_____ 26. Fossil fuels are considered nonrenewable because they
a. are derived from organisms that were once alive.
b. can never be used up.
c. can be replaced as quickly as they are used.
d. take millions of years to form.
_____ 27. All of the following are examples of materials that cycle in ecosystems except
a. energy.
b. oxygen.
c. water.
d. nitrogen.
School of Modern Skills Dubai
Name: _____________________ Revision Sheet
Grade 6
Date:___________
_____ 28. Which is one way in which carbon dioxide enters the atmosphere?
a. percolation
b. photosynthesis
c. combustion
d. evaporation
_____ 29. Bacteria return nitrogen to the soil by which process?
a. denitrification
b. assimilation
c. nitrification
d. ammonification
30. The figure below shows the water cycle. Insert the following terms in the correct spaces:
evaporation, groundwater, precipitation, transpiration, and water vapor.
In the space provided, write the letter of the term that best completes the
statement.
_____ 31. Water retained beneath Earth’s surface is called
a. precipitation.
b. transpiration.
c. condensation.
d. groundwater.
Read each statement, and write your response in the space provided.
32. Explain how an animal can be both predator and prey.
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
School of Modern Skills Dubai
Name: _____________________ Revision Sheet
Grade 6
Date:___________
33. List three ways carbon atoms return to the nonliving part of the carbon cycle.
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
34. What is the source of the energy that drives the water cycle?
___________________________________________________________________
35. Which statement best describes why a model is useful when studying plate movement?
Plate movement is difficult to observe in nature.
Plate movement can be viewed only from space.
Plate movement occurs only in remote areas of the world.
Plate movement happens too quickly to understand its effects.
36. Earth is made up of many layers. Which layer is responsible for the movement of Earth’s plates?
the core
b) the crust
c) Mantle
d) the oceans
37. Look at the image below. The arrow points to the Atlantic Ocean as it was millions of years ago.
Which statement best describes what is happening to the
Atlantic Ocean as the plates drift farther apart?
It is growing deeper.
It is becoming wider.
Its water is becoming saltier.
Its temperature is decreasing.
38. Joshua spends the day at the beach with his family. He finds some smooth stones in the sand. What
process causes such stones to become smooth?
deposition b) erosion
c) grooving
39. Notice the ice splitting the rock.
To which process does the ice contribute?
deposition b) erosion
c) polishing d) weathering
d) weathering
School of Modern Skills Dubai
Name: _____________________ Revision Sheet
Grade 6
Date:___________
40. Earth consists of the crust, the mantle, the outer core, and the inner core.
Which label do scientists use when they refer to the four parts of Earth
shown in the image?
faults b) layers c) plates
d) rings
41. Different types of plate motion produce boundaries that shape different landforms and cause
different natural events. Which event will most likely occur where two plates move in different
directions and slide against each other?
an earthquake b) fault
c) flood d) volcano
42. Which is the inner most layer of the earth?
a) Core
b) Mantle
c) Crust
43. Which layer of the earth include both land, where you live and the water?
a)Core
b) Mantle
c) Crust
44. What is the layer above the outer core?
a) Core
b) Mantle
c) Crust
45. Identify the thinnest layer of the earth?
b) Core
b) Mantle
c) Crust
46. Identify the hottest layer of the earth?
a) Core
b) Mantle
c) Crust
47. A process of removal or transportation of material by water or soil
a)Weathering
b) Erosion
c) Deposition
48. Dropping or settling of eroded material
a)Weathering
b) Erosion
c) Deposition
School of Modern Skills Dubai
Name: _____________________ Revision Sheet
Grade 6
Date:___________
49. Huge sheets of ice to form and stay frozen year around
a) Glaciers
b) Rivers
c) erosion
50. A technique for careful use of natural resources [conservation/restoration].
51. A chocolate box is used as a jewelry box[reusing /restoration].
52. The process of recovering useful materials from waste is [recycling/reduction].
Examples of parasitism:
Tape worm (parasite) lives in digestive system of animals( host)
Fleas live on dogs
Examples of Mutualism
Bees and flowers
Large fish( eel) and cleaner fish
Commensalism
Orchids growing on a tree trunk
Shark and Remora
School of Modern Skills Dubai
Name: _____________________ Revision Sheet
Grade 6
Answer Key
1. d
2. h
3. a
4. g
5. b
6. e
7. c
8. f
9. parasitism
10. commensalism
11. predator
12. harmed
13. mutualism
14. renewable
15. non renewable
16.
17.
18. b
19. b
20. a
21. a
22. b
23. a
24. a
Date:___________
School of Modern Skills Dubai
Name: _____________________ Revision Sheet
Grade 6
Date:___________
25. c
26. d
27. a
28. c
29. a
30.
6.
water vapor
7.
transpiration
8.
evaporation
31. d
32.
33. cellular respiration,
34. sun
35. a
36. c
37. b
38. d
39. d
40. b
41. a
42. a
43. c
44. b
45. c
46, a
47. b
48. c
49. a
50. conservation
51. Reusing
52. Recycling
decomposition
combustion
9.
ground water
10.
precipitation