Science - Quiz B

Onions make us cry because they contain…………….

• sulfur

• iron

• potassium

• magnesium

Sunglasses contain……………to protect our eyes from the sun's rays.

• Tungsten

• Iron

• Silicon

• Cobalt

Sodium metal is stored in………………… because it’s very reactive.

•   Kerosene

• Water

• Sand

• alcohols

Filling a balloon with …………. Makes it moves up in the air.

• Air

• Helium

• Nitrogen

• Argon

…………………. is the most dangerous and poisoning gas.

• Carbon monoxide

• Carbon dioxide

• Nitrogen oxide

• Ozone

Bulb lamps contain a filament made of ………………

• Tungsten

• Copper

• Aluminum

• Iron

Secret ink is made of

• Cobalt chloride

• Zinc sulphate

• Silver nitrate

• Potassium carbonate

Which is the only metal Liquid at room temperature?

• Silver

• Palladium

• Mercury

• Platinum

What is the most common element (by mass) forming the planet earth?

• Oxygen

• Carbon

• Iron

• Silicon

Bee sting can be treated with……………

• Vinegar

• Sodium hydrogen carbonate  

• Potassium hydroxide

• Lemon juice