GRADE 6
SCIENCE
REVISION
(End of the Semester 2 Exam)
GRADE 6 SCIENCE REVISION
INSTRUCTIONS
1.
In groups, write your
Group
#
Points
here
answers in your
2.
mini-board.
4. When I say “boards up!”,
Each member should
show your answers and don’t
take turns in writing
make
the answers.
3.
Write your points on
the upper right side
of your mini board.
any
changes
in
your
answers. Put it down if your
answer is wrong.
GRADE 6 SCIENCE REVISION
TO ENSURE ALL GROUPS FOLLOW RULES
1.
Group 1 and group 2 will supervise
each other.
2.
Group 3 & 5 will supervise each
4. Make sure that:
•
other
3.
They don’t change their
answers
Group 4 & 6 will supervise each
•
They don’t cheat
other.
•
They take turns
Minus points for those who don’t follow rules.
• Sit with your group now!
• Put desks together
facing each other.
Group Quiz Game
Teacher’s
table
Noisy group will have minus points!
Group 1
Group 2
Lockers
Group 3
Group 4
BACK OF CLASS
Group 5
d
o
o
r
Group 6
d
o
o
r
Group Quiz Game (6.6 grouping)
Group 1: Hoang, Khang, Quyen, DLinh
Group 2: K.An, Tri Nguyen, Bao, Hphuc, A Khoa
Group 3: Duyen, Lam, XPHu, CC
Group 4: Dung, Vy, May, Q. Anh,
Group 5: Hlinh, Klinh, Nhuan, Le Khanh, T. Phong
Group 6: Q. Bao, T Phat, Bella, Tan Phuc
Unit 7
Cambridge
Questions
Question 1a
1 mark
Grass mouse fox snake eagle
Question 1a
They release nutrients to the soil after
breaking down organic matter.
3 marks
Giraffe and rhino lose their food so they will decrease
in number
Question 1b
Less/ smaller
19 500
3 marks
Question 22
Question
Small fish
penguins
Break down organic matter/dead
bodies of living organisms
3 marks
1 mark
Look at the incomplete food web.
Question 3
hawk’s dung/waste can be used as fertilizer for the grass
When it dies, decomposers release nutrients in the soil for grass
Question 4
decomposition
Bacteria & fungi
2 marks
Question 4b
4 marks
thermometer
Because the temperature in composter B is
still increasing
She needs to keep recording temperature until
the temperature starts decreasing
To get more reliable result
Question 5
Temperature of the apple
Same mass of the apple at the start
Same species of apple
time of the day to record the change in mass of
the apple
corrosive
1 mark
2 marks
Question 5c
Balance/scale
Mass lost divided by the time taken
(mass lost/ time taken
Timer/clock
Question 6
decrease
decomposers
They lose their food so they will die
hawk
snake
tarantula
lizard
rat
grasshopper
Break down organic matter
3 marks
cactus
They clean up organic waste
5 marks
Question 7
Mass of dead leaves at the start
Same temperature in the container
Same species of leaf
3 …………………………………………………
Number of worms
Mass of dead leaves after one week
4 marks
Question 8
4 marks
Yeast cells have increased in number
The cell has reproduced/replicated
Question 7
4 marks
Mouse, rabbit, grasshopper
Because it can also be a tertiary
consumer
hawk
decrease
The arrows show direction of
energy flow
Hawk will eat mice more since they got
less option for food after rabbits are
killed
End of Round Unit 5
SCOREBOARD (Class 6.7)
Group number
Score over
Team Members
1
38
DHP, Khoi, Phuong, Ky,
Khang
2
35
30
3
4
38
5
29
36
6
Hminh, Bao An, Kbach,
Hbach
End of Round Unit 5
SCOREBOARD (Class 6.6)
Group number
Score over
Total
1
42 + 10
52
2
3
27 + 5
39 + 9
4
39 + 8
32
48
47
5
40 +7
40 + 12
47
52`
6
Unit 6
Cambridge
Questions
Question 1
4 marks
Because there are no air particles to vibrate
When hammer hits the bell, the air
particles around also vibrate producing
sound wave moving through his ears.
Question 2
Because of convection current of magma in the
mantle
2 marks
Question 2b
4 marks
Percentages of most gases in the air have increase
Only carbon dioxide percentage has decreased
Because the percentage of carbon dioxide increase
from 6 to 97 during eruption.
Respiration / combustion (burning)
Question 3
2 marks
Air particles vibrate when he claps his hands producing sound
wave travelling through his ears. Sound wave reflects off the
cliff and he hears an echo.
Question 4a
Earthquake
Volcanoes
Fold mountains
4 marks
Question 4b
4 marks
crust
mantle
magma
Question 5
4 marks
Vacuum has no particles to vibrate
Air particles vibrate forming sound waves
Question 6
4 marks
When the sound wave reflects off faster, it
means the bat is closer.
When sound wave travels, it reflects off the prey as an echo.
They can use this to find out the distance and the direction
of the wave to locate the prey.
Question 7
3 marks
echo
Distance= speed x time
d= 1500 x 4; D= 6000 m (total distance traveled by reflected sound)
Distance from the bottom of the ship to the seabed
6000/2= 3000 m
3000
Question 8
crust
Upper mantle
4 marks
5 marks
Question 8
Earthquake
Volcanoes
Fold mountains
Strength- it shows the direction of the movement of the
plates
Weakness- the model doesn’t show how deep the layers,
5 marks
Question 9
Particles vibrate
1000-1500
Water is liquid so its speed of sound should be
faster than gas but slower than solid
Because there are no particles to vibrate
Because glass is solid in which particles are very
close together so its easy to vibrate
Question 10
Air particles vibrate when he he shouts producing sound wave
travelling to the tunnel. Sound wave reflects off the tunnel and he
hears an echo.
2 marks
Question 11
4 marks
Tectonic plates
Earth’s crust
Use a shorter box/ add more pieces of cloth
Cloth will fold
Question 12
Air particles vibrate when he claps his hands producing sound
wave travelling to the tunnel. Sound wave reflects off the tunnel
and he hears an echo.
5 marks
Question 12
4 marks
x
x
x
At 425 meters
x
x
x
300
600
200
100
400 500
Distance between Carlos and the school in meters
As the distance between Carlos and the school increases, the
time taken to hear an echo also increases
About 1.25 s
1.25/2= 0.625 (half of 1.25)
End of Round 1
SCOREBOARD (Class 6.7)
Group number
Score over 38
Partial Score R2
1
32/38
7
2
31/38
26/38
33/38
30/38
32/38
8
7
8
8
9
3
4
5
6
End of Round 1
SCOREBOARD (Class 6.6)
Group number
Score over 38
Partial Score R2
1
37
6
2
26
33
31
32
33
7
7
7
6
7
3
4
5
6
0
