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Chemistry I
Chemistry II
Physics
Biology I
Biology II
100

Na

What is this element?

Sodium

100

Rusting of metal requires air and ____________.

water

100

Sound cannot travel through ____________

vacuum

100

This vessel has valve

Vein

100

This organ will contract when you breath in...

Diaphragm

200

Ar

What is this element?

Argon

200

Carbonate salt  +  acid  --->  

metal salt  +  carbon dioxide   +  water

200

The higher the ___________, the higher the pitch.

frequency

200

The composition of blood

55% =

44% =

1% =

55% = plasma

44% = red blood cells

1% = white blood cells and platelets

200

This specialised cells will sweep mucus along the airway

Ciliated epithelial cells

300

How do you separate alcohol from water?

Distillation

300

When phenolphthalein is added into potassium hydroxide, the colour of the indicator will change from ____________ to _______________.

Colourless, pink

300

By increasing the number of complete waves (hertz) will increase also the amplitude. True or false?

False

300

Fertilisation happens at ______________ and implantation happens at ________________.

oviduct/Fallopian tube, uterus

300

Gaseous exchange happens at __________

alveolus

400

Explain diffusion

The spreading out of particles from high concentration region to low concentration region

400

NaOH  +   H2SO4  ----> 

Sodium Sulfate  +  Water

Na2SO4   +   H2O

400

A light the split through a prism is passed through a magenta filter followed by a red filter. What colour can you see on the white screen?

Red

400
The human circulatory system is also known as....

double circulatory system

400

A sperm cell has many ____________ so that it can get energy from aerobic respiration

mitochondria

500

This element is mixed with tin and oxygen to form a very special material that is transparent and can conduct electricity. It is used to make touchscreens on electronic devices. What is this?

Indium

500

Describe the test for hydrogen gas.

Use burning wooden splinter

'Pop' sound can be heard

500

Where can you find 'mashrabiya' windows?

India & Middle East

500

The flow of the blood of the following is true/false?

Lung --> pulmonary artery --> left atrium --> left ventricle --> aorta --> whole body --> vena cava --> right atrium --> right ventricle --> pulmonary vein --> lung

False

500

The gestation period for an elephant is __________

22 months