TIMSS 2015
TIMSS 2015
TIMSS 2015
TIMSS 2015
TIMSS 2015
TIMSS 2015
Preparing for TIMSS 2015
Math diagnostic test / grade 8
School
Student's name
Grade/Class
Answer all the following questions.
Life science
1- Ahmed is training for the School Olympiads Marathon next week, after 30
minutes of training his pulse rate will:
o
o
o
o
Increase
Decrease
Stay the same
Increase then decrease when he became tired.
Explain your choice:………………………………………………………
………………………………………………………..
………………………………………………………...
1
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2- The following diagram represents a simple food chain in an
ecosystem.
If people in the area kill large numbers of deer’s, what will be
the effect on Grasses?
……………………………………………………………
……………………………………………………………
In this food chain the secondary consumer is:
................................................................................................
3- Animals hibernate to survive cold weather and poor food supplies.
Which of the following occurs in animals when they hibernate?
o
o
o
o
Their blood stops circulating
Their body temperature increases
Their body fat remains constant.
Their rate of metabolism decreases
4- What processes take place in the human body that prevents it from overheating
during exercise?
………………………………………………………………………….
………………………………………………………………………….
2
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Physics
5- Khalid wants to test the temperature connection in different materials, so he made
a coffee and drop it equally in three cups, paper, metal and glass.
Glass cup
Metal cup
paper cup
After two minutes, in which cup will the coffee temperature degrees will go
down firstly?
o Paper cup
o Metal cup
o Glass cup
o There is no difference in temperature degrees
Explain your choice.
…………………………………………………………….
…………………………………………………………….
3
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TIMSS 2015
6- A ship sailed in fresh water and the level of water on the ship side is as shown in
the picture.
If the ship sailed in salty water what will happen for the water level on the
ship side?
o Stay as it is
o Go up
o Go down
o Go up and down
Explain your choice.
……………………………………………………………………………
……………………………………………………………………………
4
TIMSS 2015
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Chemistry
7-Three identical candles are placed in the three jars shown above and lit at the
same time. Jars Y and Z are then sealed with lids and Jar X is left open.
Which candle flame will go out first (X, Y, or Z)?
………………………………………………………………..
Explain your answer.
………………………………………………………………………...
………………………………………………………………………..
8-Abdullah makes a solution by dissolving 10 grams of salt in 100 ml of water. He
wants a solution that is half as concentrated. What should he add to the original
solution to obtain a solution that is about half as concentrated?
o
o
o
o
50 ml of water
100 ml of water
5 grams of salt
10 grams of salt
5
TIMSS 2015
TIMSS 2015
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TIMSS 2015
Earth Sciences
9-Why do mountain climbers use oxygen equipment at the top
of the world's highest mountains?
………………………………………………………………………………
………………………………………………………………………………
10-Identify four life-supporting characteristics present on earth that are not present
on any other planet.
1- ………………………………………………..
2- ………………………………………………..
3- ………………………………………………..
4- ………………………………………………..
THE END
U
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